Sample records for abscess gas formation

  1. A case of gas-forming liver abscess with diabetes mellitus.

    PubMed

    Tatsuta, Tetsuya; Wada, Toyohito; Chinda, Daisuke; Tsushima, Kiyoto; Sasaki, Yoshio; Shimoyama, Tadashi; Fukuda, Shinsaku

    2011-01-01

    A 43-year-old man was admitted to our hospital with right hypochondriac and epigastric pain. An abdominal radiograph showed a large niveau in the right subphrenic space. An abdominal CT scan demonstrated a large liver abscess (diameter, 13 cm) with gas formation. Klebsiella pneumoniae cells were isolated from the abscess, and the patient was treated with antibiotics and percutaneous drainage. It is very important to treat gas-forming liver abscess immediately, because subsequent bacteremia and septic shock are frequently noted, and the associated mortality rate is high.

  2. Acute bacterial prostatitis and abscess formation.

    PubMed

    Lee, Dong Sup; Choe, Hyun-Sop; Kim, Hee Youn; Kim, Sun Wook; Bae, Sang Rak; Yoon, Byung Il; Lee, Seung-Ju

    2016-07-07

    The purpose of this study was to identify risk factors for abscess formation in acute bacterial prostatitis, and to compare treatment outcomes between abscess group and non-abscess group. This is a multicenter, retrospective cohort study. All patients suspected of having an acute prostatic infection underwent computed tomography or transrectal ultrasonography to discriminate acute prostatic abscesses from acute prostatitis without abscess formation. A total of 31 prostate abscesses were reviewed among 142 patients with acute prostatitis. Univariate analysis revealed that symptom duration, diabetes mellitus and voiding disturbance were predisposing factors for abscess formation in acute prostatitis. However, diabetes mellitus was not related to prostate abscess in multivariate analysis. Patients with abscesses <20 mm in size did not undergo surgery and were cured without any complications. In contrast, patients with abscesses >20 mm who underwent transurethral resection had a shorter duration of antibiotic treatment than did those who did not have surgery. Regardless of surgical treatment, both the length of hospital stay and antibiotic treatment were longer in patients with prostatic abscesses than they were in those without abscesses. However, the incidence of septic shock was not different between the two groups. A wide spectrum of microorganisms was responsible for prostate abscesses. In contrast, Escherichia coli was the predominant organism responsible for acute prostatitis without abscess. Imaging studies should be considered when patients with acute prostatitis have delayed treatment and signs of voiding disturbance. Early diagnosis is beneficial because prostatic abscesses require prolonged treatment protocols, or even require surgical drainage. Surgical drainage procedures such as transurethral resection of the prostate were not necessary in all patients with prostate abscesses. However, surgical intervention may have potential merits that reduce the

  3. Corticosteroids and peritonsillar abscess formation in infectious mononucleosis.

    PubMed

    Hanna, Brendan C; McMullan, Ronan; Hall, Samuel J

    2004-06-01

    Peritonsillar abscess formation is an uncommon complication of infectious mononucleosis (IM). Early case reports implicated corticosteroids in the development of such abscesses, however, subsequent studies suggested that these drugs do not promote the formation of abscesses at several sites outside the central nervous system. It has recently been demonstrated that zwitterionic polysaccharides, in bacterial capsules, form complexes with CD4(+) T lymphocytes leading to abscess formation. A patient is presented who developed peritonsillar abscess a few days after initiation of corticosteroid therapy for IM; the medical literature was reviewed in respect of this subject. It appears that the occurrence of these abscesses in IM is not strongly linked to corticosteroid treatment. The authors, therefore, recommend that steroids should not be withheld from patients with severe IM on the basis that they may precipitate the development of peritonsillar abscess.

  4. Bone formation within a breast abscess

    PubMed Central

    Mannu, Gurdeep Singh; Ahmed, Farid; Cunnick, Giles; Mungalsingh, Naren

    2014-01-01

    We present a rare case of osseous metaplasia in a poorly healing breast abscess. An 87-year-old woman was referred to the breast surgery clinic with a painful lump in her right breast. Initial imaging and core biopsy suggested a breast abscess. Despite several courses of antibiotics and repeated attempts at aspiration the painful lesion persisted. It was eventually surgically excised in its entirety and final histopathology showed the presence of bone formation within the abscess. The patient's symptoms subsequently resolved. To the best of our knowledge, this is the first case in the literature, of osseous metaplasia within a breast abscess in the absence of malignancy. PMID:25246453

  5. Bone formation within a breast abscess.

    PubMed

    Mannu, Gurdeep Singh; Ahmed, Farid; Cunnick, Giles; Mungalsingh, Naren

    2014-09-22

    We present a rare case of osseous metaplasia in a poorly healing breast abscess. An 87-year-old woman was referred to the breast surgery clinic with a painful lump in her right breast. Initial imaging and core biopsy suggested a breast abscess. Despite several courses of antibiotics and repeated attempts at aspiration the painful lesion persisted. It was eventually surgically excised in its entirety and final histopathology showed the presence of bone formation within the abscess. The patient's symptoms subsequently resolved. To the best of our knowledge, this is the first case in the literature, of osseous metaplasia within a breast abscess in the absence of malignancy. 2014 BMJ Publishing Group Ltd.

  6. An intradural-extramedullary gas-forming spinal abscess in a patient with diabetes mellitus.

    PubMed

    Nadkarni, Trimurti; Shah, Abhidha; Kansal, Ritesh; Goel, Atul

    2010-02-01

    Spinal infections are commonly reported to be located in the extradural or intramedullary spaces. Infection involving the intradural-extramedullary space are uncommon. We report a patient with uncontrolled diabetes mellitus and an infected foot ulcer who presented with a cervical cord abscess and intradural gas. Early diagnosis and aggressive treatment are necessary for a favourable outcome in gas-forming intradural spinal abscesses. To our knowledge, a gas-forming intradural spinal abscess has not been reported previously and we discuss the relevant literature. Copyright 2009 Elsevier Ltd. All rights reserved.

  7. Emergency surgery for lung cancer with abscess formation after transbronchial biopsy.

    PubMed

    Takanashi, Yusuke; Miyashita, Koichi; Tajima, Shogo; Hayakawa, Takamitsu; Neyatani, Hiroshi; Funai, Kazuhito

    2017-03-01

    Abscess formation in lung cancer after transbronchial biopsy (TBB) is a rare complication with no standard consensus on a coping strategy or prophylaxis. We describe an instructive case of lung cancer which developed into an abscess after TBB. An 80-year-old man with poorly controlled diabetes mellitus underwent TBB for diagnosing a mass lesion in the left upper lobe. The TBB specimen confirmed a diagnosis of lung cancer, and he was scheduled for radical surgery. However, the tumour was revealed to have progressed into an enlarged abscess 24 days after TBB. Prompt use of meropenem failed to relieve the infection, hence we performed emergency left upper lobectomy. Poorly controlled diabetes mellitus was considered to be a risk for the formation of a tumour abscess after TBB. It was difficult to control the infection with conservative treatment using antibiotics; emergency surgical resection was considered to be the safest strategy for recovery.

  8. Liver Abscess Formation Following Transarterial Chemoembolization

    PubMed Central

    Lv, Wei-Fu; Lu, Dong; He, Yu-Sheng; Xiao, Jing-Kun; Zhou, Chun-Ze; Cheng, De-Lei

    2016-01-01

    Abstract To investigate the clinical features, risk factors, and bacterial spectrum of liver abscess following transarterial chemoembolization (TACE) and evaluate the therapeutic effect of percutaneous catheter drainage (PCD) on the abscesses. A retrospective review of patient charts was performed in 3613 patients who suffered from liver malignancies (2832 patients with hepatocellular carcinoma and 781 with metastatic hepatic tumor) and had undergone 11,054 TACE procedures from January 2005 to October 2013. Liver abscesses were found in 21 patients. PCD was performed in all abscess patients. The clinical features, risk factors, and bacterial spectrum of liver abscess following TACE were investigated and the therapeutic effect of PCD was evaluated. The incidence of liver abscess was 0.58% per patient and 0.19% per procedure. Approximately 57.1% of the patients had a medical history of bilioenteric anastomosis or biliary stent implantation. On computed tomography scans, the abscesses appeared as low-attenuation lesions and high-density iodinate oil scattered in the abscesses. The ultrasound showed the well defined, heterogeneously hypoechoic lesions. Positive microbiological isolates were obtained in all pus cultures and in 47.6% of blood cultures. The most common bacterium was Escherichia coli (52.4%). Twenty patients (95.2%) were cured from abscesses by using PCD, and 1 died of sepsis. Patients with predisposing factors are prone to an increased risk of liver abscess following TACE. Bacterial culture and antibiotic sensitivity tests on pus and blood help on the antibiotics selection. PCD combined with aggressive antibiotics can be recommended as the first-line therapeutic regimen. PMID:27124055

  9. Life-threatening emphysematous liver abscess associated with poorly controlled diabetes mellitus: a case report.

    PubMed

    Takano, Yuichi; Hayashi, Masafumi; Niiya, Fumitaka; Nakanishi, Toru; Hanamura, Shotaro; Asonuma, Kunio; Yamamura, Eiichi; Gomi, Kuniyo; Kuroki, Yuichiro; Maruoka, Naotaka; Inoue, Kazuaki; Nagahama, Masatsugu

    2017-03-06

    Emphysematous liver abscesses are defined as liver abscesses accompanied by gas formation. The fatality rate is extremely high at 27%, necessitating prompt intensive care. The patient was a 69-year-old Japanese man with type 2 diabetes. He visited the emergency outpatient department for fever and general malaise that had been ongoing for 2 weeks. Abdominal computed tomography revealed an abscess 5 cm in diameter accompanied by gas formation in the right hepatic lobe. Markedly impaired glucose tolerance was observed with a blood sugar level of 571 mg/dL and a glycated hemoglobin level of 14.6%. The patient underwent emergency percutaneous abscess drainage, and intensive care was subsequently initiated. Klebsiella pneumoniae was detected in both the abscess cavity and blood cultures. The drain was removed 3 weeks later, and the patient was discharged. Emphysematous liver abscesses are often observed in patients with poorly controlled diabetes, and the fatality rate is extremely high. Fever and malaise occasionally mask life-threatening infections in diabetic patients, necessitating careful examination.

  10. [A case of intragastric wall abscess formation during bevacizumab combined chemotherapy].

    PubMed

    Mori, Ayano; Kogawa, Takahiro; Arihara, Youhei; Abe, Masakazu; Tamura, Fumito; Abe, Seiichirou; Kukitsu, Takehiro; Ihara, Hideyuki; Sumiyoshi, Tetsuya; Yoshizaki, Naoto; Kondou, Hitoshi; Tsuji, Yasushi

    2013-05-01

    A 38-year-old man was given a diagnosis of as sigmoid colon cancer and underwent sigmoid colectomy. Post-operative pathological staging was stage IIIb. He then underwent adjuvant chemotherapy. One year and 4 months after the surgery, CT scans revealed multiple liver and lung metastases. He was given mFOLFOX6+bevacizumab, which was changed later to FOLFIRI+bevacizumab. After these chemotherapies, he was admitted to the hospital due to sudden abdominal pain and high grade fever. Obstructive jaundice was initially diagnosed, but detailed study of initial CT revealed intragastric wall abscess. After the drainage of the abscess, his conditions improved. We speculated that the abscess formation was caused by mucosal damage due to bevacizumab.

  11. Use of Prophylactic Antibiotics to Prevent Abscess Formation Following Hepatic Ablation in Patients with Prior Enterobiliary Manipulation

    PubMed Central

    Richter, Michael; Aloia, Thomas A.; Conrad, Claudius; Ahrar, Kamran; Gupta, Sanjay; Vauthey, Jean-Nicolas; Huang, Steven Y.

    2016-01-01

    Introduction Prior enterobiliary manipulation confers a high risk for liver abscess formation after hepatic ablation. We aimed to determine if prophylactic antibiotics could prevent post-ablation abscess in patients with a history of hepaticojejunostomy. Materials and Methods This single-institution retrospective study identified 262 patients who underwent 307 percutaneous liver ablation sessions between January 2010 and August 2014. Twelve (4.6%) patients with prior hepaticojejunostomy were included in this analysis. Ten (83>%) had received an aggressive prophylactic antibiotic regimen consisting of levofloxacin, metronidazole, neomycin, and erythromycin base. Two (16.6%) had received other antibiotic regimens. Clinical, laboratory, and imaging findings were used to identify abscess formation and antibiotic-related side effects. Results Twelve ablation sessions were performed during the period studied. During a mean follow-up period of 440 days (range, 77–1784 days), post-ablation abscesses had developed in 2 (16.6 %) patients, who both received the alternative antibiotic regimens. None of the 10 patients who received the aggressive prophylactic antibiotic regimen developed liver abscess. One of the 10 patients who received the aggressive prophylactic antibiotic regimen developed grade 2 antibiotic-related diarrhea and arthralgia. Conclusion An aggressive regimen of prophylactic antibiotics may be effective in preventing liver abscess formation after liver ablation in patients with prior hepaticojejunostomy. PMID:26984694

  12. Use of Prophylactic Antibiotics to Prevent Abscess Formation Following Hepatic Ablation in Patients with Prior Enterobiliary Manipulation.

    PubMed

    Odisio, Bruno C; Richter, Michael; Aloia, Thomas A; Conrad, Claudius; Ahrar, Kamran; Gupta, Sanjay; Vauthey, Jean-Nicolas; Huang, Steven Y

    2016-08-01

    Prior enterobiliary manipulation confers a high risk for liver abscess formation after hepatic ablation. We aimed to determine if prophylactic antibiotics could prevent post-ablation abscess in patients with a history of hepaticojejunostomy. This single-institution retrospective study identified 262 patients who underwent 307 percutaneous liver ablation sessions between January 2010 and August 2014. Twelve (4.6 %) patients with prior hepaticojejunostomy were included in this analysis. Ten (83> %) had received an aggressive prophylactic antibiotic regimen consisting of levofloxacin, metronidazole, neomycin, and erythromycin base. Two (16.6 %) had received other antibiotic regimens. Clinical, laboratory, and imaging findings were used to identify abscess formation and antibiotic-related side effects. Twelve ablation sessions were performed during the period studied. During a mean follow-up period of 440 days (range, 77-1784 days), post-ablation abscesses had developed in 2 (16.6 %) patients, who both received the alternative antibiotic regimens. None of the 10 patients who received the aggressive prophylactic antibiotic regimen developed liver abscess. One of the 10 patients who received the aggressive prophylactic antibiotic regimen developed grade 2 antibiotic-related diarrhea and arthralgia. An aggressive regimen of prophylactic antibiotics may be effective in preventing liver abscess formation after liver ablation in patients with prior hepaticojejunostomy.

  13. Bacterial Pathogens Induce Abscess Formation by CD4+ T-Cell Activation via the CD28–B7-2 Costimulatory Pathway

    PubMed Central

    Tzianabos, Arthur O.; Chandraker, Anil; Kalka-Moll, Wiltrud; Stingele, Francesca; Dong, Victor M.; Finberg, Robert W.; Peach, Robert; Sayegh, Mohamed H.

    2000-01-01

    Abscesses are a classic host response to infection by many pathogenic bacteria. The immunopathogenesis of this tissue response to infection has not been fully elucidated. Previous studies have suggested that T cells are involved in the pathologic process, but the role of these cells remains unclear. To delineate the mechanism by which T cells mediate abscess formation associated with intra-abdominal sepsis, the role of T-cell activation and the contribution of antigen-presenting cells via CD28-B7 costimulation were investigated. T cells activated in vitro by zwitterionic bacterial polysaccharides (Zps) known to induce abscess formation required CD28-B7 costimulation and, when adoptively transferred to the peritoneal cavity of naïve rats, promoted abscess formation. Blockade of T-cell activation via the CD28-B7 pathway in animals with CTLA4Ig prevented abscess formation following challenge with different bacterial pathogens, including Staphylococcus aureus, Bacteroides fragilis, and a combination of Enterococcus faecium and Bacteroides distasonis. In contrast, these animals had an increased abscess rate following in vivo T-cell activation via CD28 signaling. Abscess formation in vivo and T-cell activation in vitro required costimulation by B7-2 but not B7-1. These results demonstrate that abscess formation by pathogenic bacteria is under the control of a common effector mechanism that requires T-cell activation via the CD28–B7-2 pathway. PMID:11083777

  14. Thoracic intradural Aspergillus abscess formation following epidural steroid injection.

    PubMed

    Saigal, Gaurav; Donovan Post, M Judith; Kozic, Dusko

    2004-04-01

    We report an extremely unusual iatrogenic infection of the spinal canal with Aspergillus fumigatus that resulted in intradural abscess formation following epidural steroid injection in an immunocompetent young individual. Although the imaging findings of the infection were relatively nonspecific, MR imaging not only allowed for a prompt diagnosis, but also helped in surgical localization to the intradural compartment. Complications from the use of these injections are briefly discussed.

  15. Tuberculous temporal brain abscess mimicking otogenic pyogenic abscess.

    PubMed

    Muzumdar, D; Balasubramaniam, S; Melkundi, S

    2009-01-01

    Tuberculous brain abscess is a rare manifestation of central nervous system tuberculosis. We report the case of a tuberculous temporal lobe abscess in a 14-year-old female child that mimicked an otogenic pyogenic brain abscess. The patient had no prior history of tuberculosis. She had chronic otitis media and presented with signs of raised intracranial tension. Radiological imaging was suggestive of an acute pyogenic left temporal lobe abscess. A left temporal craniotomy was performed and the abscess was completely excised. Histological examination was consistent with a chronic abscess, and bacterial cultures were negative. A left radical mastoidectomy was also carried out. However, she presented with repeated abscess formation at the same site over the next 8 weeks, which was refractory to surgical therapy and broad-spectrum antibiotic administration. Furthermore, the purulent exudate showed strong positivity in the PCR test for tubercular bacilli. After administration of antituberculous treatment, she showed gradual clinical and radiological improvement. At follow-up after 2 years, she is asymptomatic. CT imaging at 2 years showed total resolution of abscess. Tuberculous abscess in the temporal lobe following otogenic infection has not been reported in the pediatric population. Although rare, the possibility of tuberculous etiology should be borne in mind as a differential diagnosis of acute abscess of otogenic origin, especially in endemic areas where the incidence of chronic otitis media as well as tuberculosis is high. The pathogenesis and treatment of tuberculous brain abscess in children is reviewed in light of the current literature on the subject. Copyright 2009 S. Karger AG, Basel.

  16. Presacral abscess as a rare complication of sacral nerve stimulator implantation.

    PubMed

    Gumber, A; Ayyar, S; Varia, H; Pettit, S

    2017-03-01

    A 50-year-old man with intractable anal pain attributed to proctalgia fugax underwent insertion of a sacral nerve stimulator via the right S3 vertebral foramen for pain control with good symptomatic relief. Thirteen months later, he presented with signs of sepsis. Computed tomography (CT) and magnetic resonance imaging (MRI) showed a large presacral abscess. MRI demonstrated increased enhancement along the pathway of the stimulator electrode, indicating that the abscess was caused by infection introduced at the time of sacral nerve stimulator placement. The patient was treated with broad spectrum antibiotics, and the sacral nerve stimulator and electrode were removed. Attempts were made to drain the abscess transrectally using minimally invasive techniques but these were unsuccessful and CT guided transperineal drainage was then performed. Despite this, the presacral abscess progressed, developing enlarging gas locules and extending to the pelvic brim to involve the aortic bifurcation, causing hydronephrosis and radiological signs of impending sacral osteomyelitis. MRI showed communication between the rectum and abscess resulting from transrectal drainage. In view of the progressive presacral sepsis, a laparotomy was performed with drainage of the abscess, closure of the upper rectum and formation of a defunctioning end sigmoid colostomy. Following this, the presacral infection resolved. Presacral abscess formation secondary to an infected sacral nerve stimulator electrode has not been reported previously. Our experience suggests that in a similar situation, the optimal management is to perform laparotomy with drainage of the presacral abscess together with simultaneous removal of the sacral nerve stimulator and electrode.

  17. Presacral abscess as a rare complication of sacral nerve stimulator implantation

    PubMed Central

    Gumber, A; Ayyar, S; Varia, H

    2017-01-01

    A 50-year-old man with intractable anal pain attributed to proctalgia fugax underwent insertion of a sacral nerve stimulator via the right S3 vertebral foramen for pain control with good symptomatic relief. Thirteen months later, he presented with signs of sepsis. Computed tomography (CT) and magnetic resonance imaging (MRI) showed a large presacral abscess. MRI demonstrated increased enhancement along the pathway of the stimulator electrode, indicating that the abscess was caused by infection introduced at the time of sacral nerve stimulator placement. The patient was treated with broad spectrum antibiotics, and the sacral nerve stimulator and electrode were removed. Attempts were made to drain the abscess transrectally using minimally invasive techniques but these were unsuccessful and CT guided transperineal drainage was then performed. Despite this, the presacral abscess progressed, developing enlarging gas locules and extending to the pelvic brim to involve the aortic bifurcation, causing hydronephrosis and radiological signs of impending sacral osteomyelitis. MRI showed communication between the rectum and abscess resulting from transrectal drainage. In view of the progressive presacral sepsis, a laparotomy was performed with drainage of the abscess, closure of the upper rectum and formation of a defunctioning end sigmoid colostomy. Following this, the presacral infection resolved. Presacral abscess formation secondary to an infected sacral nerve stimulator electrode has not been reported previously. Our experience suggests that in a similar situation, the optimal management is to perform laparotomy with drainage of the presacral abscess together with simultaneous removal of the sacral nerve stimulator and electrode. PMID:28071947

  18. Impact of Type III Secretion Effectors and of Phenoxyacetamide Inhibitors of Type III Secretion on Abscess Formation in a Mouse Model of Pseudomonas aeruginosa Infection

    PubMed Central

    Berube, Bryan J.; Murphy, Katherine R.; Torhan, Matthew C.; Bowlin, Nicholas O.; Williams, John D.; Bowlin, Terry L.; Moir, Donald T.

    2017-01-01

    ABSTRACT Pseudomonas aeruginosa is a leading cause of intra-abdominal infections, wound infections, and community-acquired folliculitis, each of which may involve macro- or microabscess formation. The rising incidence of multidrug resistance among P. aeruginosa isolates has increased both the economic burden and the morbidity and mortality associated with P. aeruginosa disease and necessitates a search for novel therapeutics. Previous work from our group detailed novel phenoxyacetamide inhibitors that block type III secretion and injection into host cells in vitro. In this study, we used a mouse model of P. aeruginosa abscess formation to test the in vivo efficacy of these compounds against the P. aeruginosa type III secretion system (T3SS). Bacteria used the T3SS to intoxicate infiltrating neutrophils to establish abscesses. Despite this antagonism, sufficient numbers of functioning neutrophils remained for proper containment of the abscesses, as neutrophil depletion resulted in an increased abscess size, the formation of dermonecrotic lesions on the skin, and the dissemination of P. aeruginosa to internal organs. Consistent with the specificity of the T3SS-neutrophil interaction, P. aeruginosa bacteria lacking a functional T3SS were fully capable of causing abscesses in a neutropenic host. Phenoxyacetamide inhibitors attenuated abscess formation and aided in the immune clearance of the bacteria. Finally, a P. aeruginosa strain resistant to the phenoxyacetamide compound was fully capable of causing abscess formation even in the presence of the T3SS inhibitors. Together, our results further define the role of type III secretion in murine abscess formation and demonstrate the in vivo efficacy of phenoxyacetamide inhibitors in P. aeruginosa infection. PMID:28807906

  19. Brain Abscess.

    PubMed

    Davis; Baldwin

    1999-05-01

    Optimal treatment of a brain abscess requires early clinical suspicion, and the diagnosis is usually made by identification of the abscess on contrast-enhanced computed tomography (CT) or magnetic resonance imaging (MRI). The immediate first step is to reduce the potentially life-threatening brain mass (abscess and surrounding cerebral edema) and secure the diagnosis with culture specimens. This is usually accomplished by reducing the increased intracranial pressure (ICP) through surgical aspiration with or without drainage of the abscess pus. The surgical procedure chosen depends on several factors, including the location and type of abscess, multiplicity, and the medical condition of the patient. In addition, dexamethasone and hyperventilation may be required if brain herniation is imminent. The dexamethasone dose should be reduced as soon as the ICP is reduced because steroid administration may retard abscess capsule formation and decrease antibiotic concentrations within the abscess cavity. Antibiotic therapy should be started as soon as the diagnosis is made. Penicillin G or third-generation cephalosporins plus metronidazole are commonly given to treat both anaerobic and aerobic bacteria. The initial choice of antibiotic will vary on the basis of the suspected source of the brain organisms, which is most often either contiguous spread from a sinus or mastoid infection or hematogenous spread from a pulmonary, gastrointestinal, cardiac, or dental infection. Isolation and determination of the antibiotic sensitivities of the organism from abscess pus allow definitive antibiotic therapy. Patients should be managed in an intensive care unit. Phenytoin is often given to prevent seizures, which could further elevate the ICP. The duration of antimicrobial treatment is 4 to 8 weeks, during which time the patient should be monitored clinically and with repeated neuroimaging studies to ensure abscess resolution.

  20. Bacteroides (Parabacteroides) distasonis splenic abscess in a sickle cell patient.

    PubMed

    Al-Tawfiq, Jaffar A

    2008-01-01

    Splenic abscess is not an uncommon complication of patients with sickle-cell disease. Here we describe an 18 year-old boy with sickle cell disease and left upper quadrant abdominal pain. Computerized axial tomography revealed left sided free flowing pleural effusion and splenomegaly with liquefaction and possible gas formation. The splenic fluid grew an unusual organism known as Bacteroides distasonis. The patient received antimicrobial therapy and underwent a splenectomy with full recovery. The spleen was cystically infarcted and measured 22 x 16 x 5 cm. The capsule was thickened and covered by fibrinous exudate. Histopathologic examination of the spleen showed complete necrosis with reparative fibrosis. This case presents an unusual cause of splenic abscess due to Bacteroides distasonis with a subacute to chronic course. The presence of fever and left sided pleuritic chest pain in patients with sickle cell disease should raise the suspicion of splenic abscess.

  1. A possible mechanism of maxillofacial abscess formation: involvement of Porphyromonas endodontalis lipopolysaccharide via the expression of inflammatory cytokines.

    PubMed

    Murakami, Y; Hanazawa, S; Tanaka, S; Iwahashi, H; Yamamoto, Y; Fujisawa, S

    2001-12-01

    In a previous study, we developed a specific monoclonal antibody against Porphyromonas endodontalis lipopolysaccharide, and demonstrated that this lipopolysaccharide was detected in bacterially infected root canal fluid. We suggest here that P. endodontalis lipopolysaccharide in the infectious materials plays a stimulatory role in maxillofacial abscess formation via the expression of inflammatory cytokines. Our epidemiological study showed that this lipopolysaccharide was detected in significant levels the infectious material of patients with periapical periodontitis and odontogenic abscesses. Interestingly, infectious material-induced expression of tumor necrosis factor-alpha, interleukin-1beta, or neutrophil chemoattractant KC genes in mouse macrophages, was significantly neutralized by monoclonal antibody against the lipopolysaccharide. In addition, we also detected a significant amount of tumor necrosis factor-alpha in the infectious material. These results suggest that P. endodontalis lipopolysaccharide plays an important role in the pathogenic mechanism of maxillofacial abscess formation via the expression of inflammatory cytokines.

  2. Vertebral osteomyelitis and epidural abscess caused by gas gangrene presenting with complete paraplegia: a case report.

    PubMed

    Akagawa, Manabu; Kobayashi, Takashi; Miyakoshi, Naohisa; Abe, Eiji; Abe, Toshiki; Kikuchi, Kazuma; Shimada, Yoichi

    2015-04-11

    Gas gangrene is most often caused by Clostridium perfringens infection. Gas gangrene is a medical emergency that develops suddenly. The mortality rate is higher with trunk involvement than with involvement of the extremities, which carries a better prognosis. With respect to vertebral involvement, there are few reports in the literature. The purpose of this paper is to report a very rare case of vertebral osteomyelitis caused by gas gangrene. A 78-year-old Japanese woman with diabetes mellitus was admitted to our hospital with the chief complaints of back pain, dysuria, and complete paralysis of both legs. A computed tomography scan showed soft tissue swelling anterolaterally at intervertebral disc level T11/12 and a gas-containing epidural abscess that compressed her spinal cord. Cultures later grew Clostridium perfringens and Escherichia coli. Hemilaminectomy was done from T10 to T12, and an epidural abscess was removed. She went on to have fusion surgery 6 weeks after the initial operation and subsequently experienced complete pain relief. She was discharged 2 months later, at which time she was able to walk with a cane. Examination 18 months after surgery showed normal gait without a cane. Discitis caused by gas gangrene infection was successfully treated by immediate debridement and subsequent fusion surgery.

  3. Lung cancer mimicking lung abscess formation on CT images.

    PubMed

    Taira, Naohiro; Kawabata, Tsutomu; Gabe, Atsushi; Ichi, Takaharu; Kushi, Kazuaki; Yohena, Tomofumi; Kawasaki, Hidenori; Yamashiro, Toshimitsu; Ishikawa, Kiyoshi

    2014-01-01

    Male, 64 FINAL DIAGNOSIS: Lung pleomorphic carcinoma Symptoms: Cough • fever - Clinical Procedure: - Specialty: Oncology. Unusual clinical course. The diagnosis of lung cancer is often made based on computed tomography (CT) image findings if it cannot be confirmed on pathological examinations, such as bronchoscopy. However, the CT image findings of cancerous lesions are similar to those of abscesses.We herein report a case of lung cancer that resembled a lung abscess on CT. We herein describe the case of 64-year-old male who was diagnosed with lung cancer using surgery. In this case, it was quite difficult to distinguish between the lung cancer and a lung abscess on CT images, and a lung abscess was initially suspected due to symptoms, such as fever and coughing, contrast-enhanced CT image findings showing a ring-enhancing mass in the right upper lobe and the patient's laboratory test results. However, a pathological diagnosis of lung cancer was confirmed according to the results of a rapid frozen section biopsy of the lesion. This case suggests that physicians should not suspect both a lung abscesses and malignancy in cases involving masses presenting as ring-enhancing lesions on contrast-enhanced CT.

  4. Percutaneous transhepatic drainage of lung abscess through a diaphragmatic fistula caused by a penetrating liver abscess.

    PubMed

    Taniguchi, Masako; Morita, Satoru; Ueno, Eiko; Hayashi, Mitsutoshi; Ishikawa, Motonao; Mae, Masahiro

    2011-11-01

    Liver abscesses occurring just below the diaphragm can penetrate or perforate the thoracic cavity, resulting in lung abscess or pyothorax. Although surgical or percutaneous transpleural drainage is often required in such cases, the latter approach has some risks, including hemothorax and bronchopleural fistula formation when the cavity is surrounded by normal lung parenchyma. The present report describes a treatment technique of percutaneous transhepatic drainage through the diaphragmatic fistula to avoid the risks of a transpulmonary approach in a case of lung abscess caused by a penetrating liver abscess.

  5. Retroperitoneal abscess shortly after chemotherapy for lung cancer: A case report.

    PubMed

    Ohara, Gen; Kondo, Tadashi; Kagohashi, Katsunori; Watanabe, Hiroko; Kawaguchi, Mio; Kurishima, Koichi; Satoh, Hiroaki; Hizawa, Nobuyuki

    2014-03-01

    To the best of our knowledge, the formation of a retroperitoneal abscess due to acute appendicitis shortly after administration of chemotherapy for lung cancer has not been previously reported. This is the case report of a 59-year-old male who was admitted to the Mito Medical Center (Mito, Japan) and diagnosed with lung adenocarcinoma with pleuritis carcinomatosis. Although no distant metastasis was identified, combination chemotherapy with cisplatin and pemetrexed was administered. Nine days after initiating chemotherapy, the patient developed right lower quadrant abdominal pain and high fever. Computed tomography (CT) of the abdomen and pelvis revealed the collection of gas and fluid in the retroperitoneum adjacent to the cecum. The abscess was locally drained; however, the infection continued to spread, with subsequent development of a scrotal abscess. Consequently, appendectomy was performed. The patient recovered well and the lung adenocarcinoma was treated with additional courses of chemotherapy following the remission of the local inflammation. Retroperitoneal abscess due to acute appendicitis is an unusual finding; however, this rare complication should be considered during or shortly after chemotherapy in patients with lung cancer.

  6. Ectopic lobe of right lung with abscess formation in children: a visual diagnosis case.

    PubMed

    Wu, Chyi-Sen; Wan, Kong-Sang

    2013-08-01

    We report a 9-year-old boy who had chest pain of 3 weeks' duration caused by ectopic lobe of the right lung with abscess formation. The diagnosis was supported by chest computed tomography and video-assisted thoracoscopy. The child responded well to the operation and fully recovered.

  7. Porphyromonas gingivalis hydrogen sulfide enhances methyl mercaptan-induced pathogenicity in mouse abscess formation.

    PubMed

    Nakamura, Suguru; Shioya, Koki; Hiraoka, B Yukihiro; Suzuki, Nao; Hoshino, Tomonori; Fujiwara, Taku; Yoshinari, Nobuo; Ansai, Toshihiro; Yoshida, Akihiro

    2018-04-01

    Porphyromonas gingivalis produces hydrogen sulfide (H2S) from l-cysteine. However, the role of H2S produced by P. gingivalis in periodontal inflammation is unclear. In this study, we identified the enzyme that catalyses H2S production from l-cysteine and analysed the role of H2S using a mouse abscess model. The enzyme identified was identical to methionine γ-lyase (PG0343), which produces methyl mercaptan (CH3SH) from l-methionine. Therefore, we analysed H2S and CH3SH production by P. gingivalis W83 and a PG0343-deletion mutant (ΔPG0343) with/without l-cysteine and/or l-methionine. The results indicated that CH3SH is produced constitutively irrespective of the presence of l-methionine, while H2S was greatly increased by both P. gingivalis W83 and ΔPG0343 in the presence of l-cysteine. In contrast, CH3SH production by ΔPG0343 was absent irrespective of the presence of l-methionine, and H2S production was eliminated in the absence of l-cysteine. Thus, CH3SH and H2S production involves different substrates, l-methionine or l-cysteine, respectively. Based on these characteristics, we analysed the roles of CH3SH and H2S in abscess formation in mice by P. gingivalis W83 and ΔPG0343. Abscess formation by P. gingivalis W83, but not ΔPG0343, differed significantly in the presence and absence of l-cysteine. In addition, the presence of l-methionine did not affect the size of abscesses generated by P. gingivalis W83 and ΔPG0343. Therefore, we conclude that H2S produced by P. gingivalis does not induce inflammation; however, H2S enhances inflammation caused by CH3SH. Thus, these results suggest the H2S produced by P. gingivalis plays a supportive role in inflammation caused by methionine γ-lyase.

  8. Lung abscess: update on microbiology and management.

    PubMed

    Yazbeck, Moussa F; Dahdel, Maher; Kalra, Ankur; Browne, Alexander S; Pratter, Melvin R

    2014-01-01

    A lung abscess is a circumscribed collection of pus in the lung as a result of a microbial infection, which leads to cavity formation and often a radiographic finding of an air fluid level. Patients with lung abscesses commonly present to their primary care physician or to the emergency department with "nonresolving pneumonia." Although, the incidence of lung abscess has declined since the introduction of antibiotic treatment, it still carries a mortality of up to 10%-20%. This article discusses in detail the up-to-date microbiology and the management of lung abscesses.

  9. Anorectal abscess

    MedlinePlus

    Anal abscess; Rectal abscess; Perirectal abscess; Perianal abscess; Gland abscess; Abscess - anorectal ... of anorectal abscess include: Blocked glands in the anal area Infection of an anal fissure Sexually transmitted ...

  10. Skin abscess

    MedlinePlus

    Abscess - skin; Cutaneous abscess; Subcutaneous abscess; MRSA - abscess; Staph infection - abscess ... Skin abscesses are common and affect people of all ages. They occur when an infection causes pus ...

  11. Hypoxia-Inducible Factor 1-Regulated Lysyl Oxidase Is Involved in Staphylococcus aureus Abscess Formation

    PubMed Central

    Beerlage, Christiane; Greb, Jessica; Kretschmer, Dorothee; Assaggaf, Mohammad; Trackman, Philip C.; Hansmann, Martin-Leo; Bonin, Michael; Eble, Johannes A.; Peschel, Andreas; Brüne, Bernhard

    2013-01-01

    Hypoxia-inducible factor 1 (HIF-1) is the key transcription factor involved in the adaptation of mammals to hypoxia and plays a crucial role in cancer angiogenesis. Recent evidence suggests a leading role for HIF-1 in various inflammatory and infectious diseases. Here we describe the role of HIF-1 in Staphylococcus aureus infections by investigating the HIF-1-dependent host cell response. For this purpose, transcriptional profiling of HIF-1α-deficient HepG2 and control cells, both infected with Staphylococcus aureus, was performed. Four hours after infection, the expression of 190 genes, 24 of which were regulated via HIF-1, was influenced. LOX (encoding lysyl oxidase) was one of the upregulated genes with a potential impact on the course of S. aureus infection. LOX is an amine oxidase required for biosynthetic cross-linking of extracellular matrix components. LOX was upregulated in vitro in different cell cultures infected with S. aureus and also in vivo, in kidney abscesses of mice intravenously infected with S. aureus and in clinical skin samples from patients with S. aureus infections. Inhibition of LOX by β-aminopropionitrile (BAPN) did not affect the bacterial load in kidneys or blood but significantly influenced abscess morphology and collagenization. Our data provide evidence for a crucial role of HIF-1-regulated LOX in abscess formation. PMID:23649089

  12. Bilateral breast abscess: a rare complication of enteric fever.

    PubMed

    Singh, S; Pandya, Y; Rathod, J; Trivedi, S

    2009-01-01

    Breast abscess is usually caused by Staphylococcus aureus in pregnant or lactating females. Salmonella spp. is occasionally associated with abscess formation in various organs, but breast abscess is a very rare complication. In enteric fever dissemination to multiple organ systems following bacteraemia can lead to localized abscess. We report a case of bilateral breast abscess due to Salmonella Typhi in an unmarried 35-year-old female without any predisposing conditions. She presented with fever and painful swelling of both the breasts. S. typhi was isolated from both breasts. Such rare cause must be suspected in females without any evident predisposing factors for effective management.

  13. Enterobius vermicularis: Can it be a possible pathogen in Bartholin gland abscess formation?

    PubMed

    Dönmez, Melahat Emine; Özlü, Tülay; Yılmaz, Fahri; Ayaz, Erol

    2014-01-01

    The most frequent disorders of the Bartholin glands are cysts or abscesses. Bartholin gland abscesses occur generally as a result of polymicrobial infections or agents that cause sexually transmitted diseases. But as far as we know, no parasite has been previously reported among the infectious agents that are detected from the abscesses of the Bartholin gland. Here, we report a 45-year-old woman, in the Bartholin abscess aspirate of whom Enterobius vermicularis eggs were detected in between the inflammatory infiltrate by cytological examination. © 2013 The Authors. Journal of Obstetrics and Gynaecology Research © 2013 Japan Society of Obstetrics and Gynecology.

  14. An atypical cause of rapidly progressing breast lump with abscess formation: Pure squamous cell carcinoma of the breast.

    PubMed

    Cilekar, Murat; Erkasap, Serdar; Oner, Ulku; Akici, Murat; Ciftci, Evrim; Dizen, Hayrettin; Turel, Serkan; Kavak, Ozgu I; Yilmaz, Sezgin

    2015-01-01

    Squamous cell carcinoma (SCC) is a rare type of breast malignancy and little is known about long-term outcome. In the present report, the clinical features, histopathologic findings and postoperative course of a patient with squamous cell carcinoma are described. We have treated a 47-years-old woman who admitted for right breast mass without any discharge, bleeding and pain. The tumor was, 3 × 2 × 1.5 cm in size with central abscess formation. The result of surgical biopsy revealed large cell keratinizing type of SCC. The metastatic work-up studies ruled out any other probable sources of primary tumor. The patient was performed modified radical mastectomy and axillary dissection and received two cycles of chemotherapy. Squamous cell carcinoma of the breast (SCCB) is a rare entity and should be considered in patients with rapidly progressing breast mass. It should also be considered in breast lesions with abscess formation. The initial therapeutic approach should be surgical excision after histopathological diagnosis.

  15. Subareolar abscess

    MedlinePlus

    Abscess - areolar gland; Areolar gland abscess; Breast abscess - subareolar ... an ultrasound or other imaging test of the breast is recommended. A blood count and a culture of the abscess, if drained, may be ordered.

  16. Hematoma and abscess formation caused by Mycoplasma hominis following cesarean section

    PubMed Central

    Koshiba, Hisato; Koshiba, Akemi; Daimon, Yasushi; Noguchi, Toshifumi; Iwasaku, Kazuhiro; Kitawaki, Jo

    2011-01-01

    Mycoplasma species cannot be identified by routine bacteriological culture methods and are resistant to common antimicrobial agents. Mycoplasma hominis usually colonizes the lower urogenital tract and causes pyelonephritis, pelvic inflammatory disease, chorioamnionitis, rupture of fetal membranes, preterm labor, postpartum fever, postabortal fever, and neonatal infection. This organism is highly prevalent in cervicovaginal cultures of sexually active women. M. hominis, M. genitalis, Ureaplasma urealyticum, and U. parvum may invade and infect placental and fetal tissues, leading to adverse pregnancy outcomes. M. hominis occasionally causes nongenitourinary infection of the blood, wounds, central nervous system, joints, or respiratory tract. We present a case of a 27-year-old woman who developed abdominal wound hematoma and abscess after cesarean section. The wound was drained, but her high fever persisted, in spite of antibiotic treatment using flomoxef sodium and imipenem·cilastatin sodium. Because the exudate exhibited M. hominis growth in an anaerobic environment, we administered the quinolone ciprofloxacin. This therapy resolved her fever, and her white blood cell count and C-reactive protein level diminished to the normal ranges. To our knowledge, there are four published articles regarding the isolation of M. hominis from postcesarean incisions. Based on the current study and the literature, infection by this pathogen may cause hematoma formation with or without abscess after cesarean section or in immunosuppressed postoperative patients. In such cases, physicians may need to suspect Mycoplasma infection and initiate appropriate antibacterial treatment as soon as possible in order to avoid persistent fever. PMID:21339933

  17. Crizotinib-induced Rectal Perforation with Abscess.

    PubMed

    Yanagisawa, Asako; Hayama, Noriko; Amano, Hiroyuki; Nakamura, Makoto; Hirano, Satoshi; Nakamura, Sukeyuki; Tabeta, Hiroshi

    2017-12-01

    An 86-year-old Japanese man was diagnosed with stage IV lung adenocarcinoma. The patient was treated with crizotinib after echinoderm microtubule-associated protein-like 4 (EML4)-anaplastic lymphoma kinase (ALK) rearrangement was detected from his pleural effusion. He subsequently developed abdominal pain and rebound tenderness in the right lower abdomen. Contrast-enhanced abdominal CT showed a low-density area in the abdominal cavity. The size of the abscess was decreased by drainage and the administration of antibiotics. Fistulography revealed a fistula from the rectum to the abscess, and a diagnosis of lower intestinal tract perforation with abscess formation was made. Crizotinib was discontinued and treatment with alectinib was initiated. The patient remains under treatment as an outpatient at our department without adverse effects.

  18. Crizotinib-induced Rectal Perforation with Abscess

    PubMed Central

    Yanagisawa, Asako; Hayama, Noriko; Amano, Hiroyuki; Nakamura, Makoto; Hirano, Satoshi; Nakamura, Sukeyuki; Tabeta, Hiroshi

    2017-01-01

    An 86-year-old Japanese man was diagnosed with stage IV lung adenocarcinoma. The patient was treated with crizotinib after echinoderm microtubule-associated protein-like 4 (EML4)-anaplastic lymphoma kinase (ALK) rearrangement was detected from his pleural effusion. He subsequently developed abdominal pain and rebound tenderness in the right lower abdomen. Contrast-enhanced abdominal CT showed a low-density area in the abdominal cavity. The size of the abscess was decreased by drainage and the administration of antibiotics. Fistulography revealed a fistula from the rectum to the abscess, and a diagnosis of lower intestinal tract perforation with abscess formation was made. Crizotinib was discontinued and treatment with alectinib was initiated. The patient remains under treatment as an outpatient at our department without adverse effects. PMID:29021430

  19. Breast abscess after intravenous methamphetamine injection into the breast.

    PubMed

    Kistler, Amanda; Ajkay, Nicolas

    2018-05-01

    Intravenous drug use is a problem plaguing our society. We present a case of a young female who injected methamphetamine into her mammary vein, resulting in the formation of a breast abscess. This case demonstrates a rare but dangerous complication of intravenous drug use and a possible differential diagnosis in a patient presenting with a breast abscess. © 2017 Wiley Periodicals, Inc.

  20. Incidence and Risk Factors for Liver Abscess After Thermal Ablation of Liver Neoplasm

    PubMed Central

    Su, Xiu-Feng; Li, Na; Chen, Xu-Fang; Zhang, Lei; Yan, Ming

    2016-01-01

    Background Radiofrequency ablation (RFA) and microwave ablation (MWA) are the most frequently used thermal ablation methods for the treatment of liver cancer. Liver abscess is a common and severe complication of thermal ablation treatment. Objectives The objective of this study was to determine the incidence and risk factors of liver abscess formation after thermal ablation of liver cancer. Materials and Methods The clinical data of 423 patients who underwent 691 thermal ablation procedures for liver cancer were collected in order to retrospectively analyze the basic characteristics, incidence, and risk factors associated with liver abscess formation. Patients with multiple risk factors for liver abscess formation were enrolled in a risk factor group, and patients with no risk factors were enrolled in a control group. The chi-square test and multiple logistic regression analysis were used to analyze the relationship between the occurrence of liver abscesses and potential risk factors. Results Two hundred and eight patients underwent 385 RFA procedures, and 185 patients underwent 306 MWA procedures. The total incidence of liver abscesses was 1.7%, while the rates in the RFA group (1.8%) and MWA groups (1.6%) were similar (P > 0.05). The rates of liver abscesses in patients who had child-pugh class B and class C cirrhosis (P = 0.0486), biliary tract disease (P = 0.0305), diabetes mellitus (P = 0.0344), and porta hepatis tumors (P = 0.0123) were 4.0%, 6.7%, 6.5%, and 13.0%, respectively. There was a statistically significant difference between these four groups and the control group (all P < 0.05). The incidence of liver abscesses in the combined ablation and percutaneous ethanol injection (PEI) group (P = 0.0026) was significantly lower than that of the ablation group (P < 0.05). Conclusions The incidence of liver abscesses after liver cancer thermal ablation is low. Child-Pugh Class B and Class C cirrhosis, biliary tract disease, diabetes mellitus, and porta hepatis

  1. Streptococcal toxic shock syndrome complicating a peritonsillar abscess.

    PubMed

    Aalling, Mathilde; Klug, Tejs Ehlers

    2015-02-01

    A 68-year-old man was admitted to hospital in an acute confusional state with a 2-week history of fever, influenza-like illness and sore throat. He quickly developed coagulation disturbances, hypotension and renal function impairment. Despite broad-spectrum antibiotic therapy, he deteriorated. Group A streptococcus (GAS) was recovered from blood cultures, which gave the diagnosis streptococcal toxic shock syndrome (STSS). A computed tomography scan showed a right-sided peritonsillar abscess (PTA). Acute tonsillectomy was carried out and the patient recovered. STSS complicating PTA has not previously been described in the literature, but GAS is a common pathogen in PTA. Clinicians should be aware that STSS can develop secondary to tonsillar infections and that abscess development should be suspected in STSS patients who do not respond to antibiotic treatment.

  2. Thoracic osteomyelitis and epidural abscess formation due to cat scratch disease: case report.

    PubMed

    Dornbos, David; Morin, Jocelyn; Watson, Joshua R; Pindrik, Jonathan

    2016-12-01

    Osteomyelitis of the spine with associated spinal epidural abscess represents an uncommon entity in the pediatric population, requiring prompt evaluation and diagnosis to prevent neurological compromise. Cat scratch disease, caused by the pathogen Bartonella henselae, encompasses a wide spectrum of clinical presentations; however, an association with osteomyelitis and epidural abscess has been reported in only 4 other instances in the literature. The authors report a rare case of multifocal thoracic osteomyelitis with an epidural abscess in a patient with a biopsy-proven pathogen of cat scratch disease. A 5-year-old girl, who initially presented with vague constitutional symptoms, was diagnosed with cat scratch disease following biopsy of an inguinal lymph node. Despite appropriate antibiotics, she presented several weeks later with recurrent symptoms and back pain. Magnetic resonance imaging revealed 2 foci of osteomyelitis at T-8 and T-11 with an associated anterior epidural abscess from T-9 to T-12. Percutaneous image-guided vertebral biopsy revealed B. henselae by polymerase chain reaction analysis, and she was treated conservatively with doxycycline and rifampin with favorable clinical outcome.

  3. Penile abscess and necrotizing fasciitis secondary to neglected false penile fracture

    PubMed Central

    Al-Reshaid, Reshaid Abdullah; Madbouly, Khaled; Al-Jasser, Abdullah

    2010-01-01

    Penile infection and abscess formation have been described in association with priapism, cavernosography, intracavernosal injection therapy, trauma and penile prosthesis. We report a case of penile abscess and necrotizing fasciitis of penile skin in a 37-year-old male, presented 3 weeks after neglected false penile fracture. PMID:20882163

  4. Abdominal wall abscess secondary to spontaneous rupture of pyogenic liver abscess.

    PubMed

    Zizzo, Maurizio; Zaghi, Claudia; Manenti, Antonio; Luppi, Davide; Ugoletti, Lara; Bonilauri, Stefano

    2016-01-01

    Pyogenic liver abscess is a rare cause of hospitalization, related to a mortality rate ranging between 15% and 19%. Treatment of choice is represented by image-guided percutaneous drainage in combination with antibiotic therapy but, in some selected cases, surgical treatment is necessary. In extremely rare cases, spontaneous rupture of liver abscess may occur, free in the peritoneal cavity or in neighboring organs, an event which is generally considered a surgical emergency. A 95-years-old woman was hospitalized with fever, upper abdominal pain, mild dyspepsia and massive swelling of the anterior abdominal wall. Computed tomography revealed an oval mass located in the abdominal wall of 12cm×14cm×7cm, in continuity with an abscess of the left hepatic lobe. Because Proteus mirabilis was detected in both the liver abscess and the abdominal wall abscess, the patient was diagnosed with a ruptured pyogenic liver abscess. After spontaneous drainage to the exterior of the hepato-parietal abscess, she was successfully treated with antibiotics alone. Pyogenic liver abscess is a serious and life-threatening illness. Abscess rupture might occur. Many authors consider this complication a surgical emergency, but the site of abscess rupture changes the clinical history of the disease: in case of free rupture into the peritoneum, emergency surgery is mandatory, while a rupture localized in neighboring tissues or organs can be successfully treated by a combination of systemic antibiotics and fine needle aspiration and/or percutaneous drainage of the abscess. Copyright © 2016 The Authors. Published by Elsevier Ltd.. All rights reserved.

  5. Lung abscess-etiology, diagnostic and treatment options.

    PubMed

    Kuhajda, Ivan; Zarogoulidis, Konstantinos; Tsirgogianni, Katerina; Tsavlis, Drosos; Kioumis, Ioannis; Kosmidis, Christoforos; Tsakiridis, Kosmas; Mpakas, Andrew; Zarogoulidis, Paul; Zissimopoulos, Athanasios; Baloukas, Dimitris; Kuhajda, Danijela

    2015-08-01

    Lung abscess is a type of liquefactive necrosis of the lung tissue and formation of cavities (more than 2 cm) containing necrotic debris or fluid caused by microbial infection. It can be caused by aspiration, which may occur during altered consciousness and it usually causes a pus-filled cavity. Moreover, alcoholism is the most common condition predisposing to lung abscesses. Lung abscess is considered primary (60%) when it results from existing lung parenchymal process and is termed secondary when it complicates another process, e.g., vascular emboli or follows rupture of extrapulmonary abscess into lung. There are several imaging techniques which can identify the material inside the thorax such as computerized tomography (CT) scan of the thorax and ultrasound of the thorax. Broad spectrum antibiotic to cover mixed flora is the mainstay of treatment. Pulmonary physiotherapy and postural drainage are also important. Surgical procedures are required in selective patients for drainage or pulmonary resection. In the current review we will present all current information from diagnosis to treatment.

  6. Lung abscess-etiology, diagnostic and treatment options

    PubMed Central

    Kuhajda, Ivan; Zarogoulidis, Konstantinos; Tsirgogianni, Katerina; Tsavlis, Drosos; Kioumis, Ioannis; Kosmidis, Christoforos; Tsakiridis, Kosmas; Mpakas, Andrew; Zissimopoulos, Athanasios; Baloukas, Dimitris; Kuhajda, Danijela

    2015-01-01

    Lung abscess is a type of liquefactive necrosis of the lung tissue and formation of cavities (more than 2 cm) containing necrotic debris or fluid caused by microbial infection. It can be caused by aspiration, which may occur during altered consciousness and it usually causes a pus-filled cavity. Moreover, alcoholism is the most common condition predisposing to lung abscesses. Lung abscess is considered primary (60%) when it results from existing lung parenchymal process and is termed secondary when it complicates another process, e.g., vascular emboli or follows rupture of extrapulmonary abscess into lung. There are several imaging techniques which can identify the material inside the thorax such as computerized tomography (CT) scan of the thorax and ultrasound of the thorax. Broad spectrum antibiotic to cover mixed flora is the mainstay of treatment. Pulmonary physiotherapy and postural drainage are also important. Surgical procedures are required in selective patients for drainage or pulmonary resection. In the current review we will present all current information from diagnosis to treatment. PMID:26366400

  7. Abscess incision and drainage in the emergency department--Part I.

    PubMed

    Halvorson, G D; Halvorson, J E; Iserson, K V

    1985-01-01

    Superficial abscesses are commonly seen in the emergency department. In most cases, they can be adequately treated by the emergency physician without hospital admission. Treatment consists of surgical drainage with the addition of antibiotics in selected cases. Incision is generally performed using local anesthesia, with intraoperative and postoperative systemic analgesia. Care must be taken to make a surgically appropriate incision that allows adequate drainage without injuring important structures. Postoperative care includes warm soaks, drains or wicks, analgesia, and close follow-up. Antibiotics are usually unnecessary. Complications of incision and drainage include damage to adjacent structures, bacteremic complications, misdiagnosis of such entities as mycotic aneurysms, and spread of infection owing to inadequate drainage. The infectious agents responsible for abscess formation are numerous and depend largely on the anatomic location of the abscess. Staphylococcus aureus accounts for less than half of all cutaneous abscesses. Anaerobic bacteria are common etiologic agents in the perineum and account for the majority of all cutaneous abscesses. Abscesses at specific locations involve special consideration for diagnosis and treatment and may require specialty consultation.

  8. [Primitive lung abscess: an unusual situation in children].

    PubMed

    Bouyahia, O; Jlidi, S; Sammoud, A

    2014-12-01

    Lung abscess is a localized area of non tuberculosis suppurative necrosis of the parenchyma lung, resulting in formation of a cavity containing purulent material. This pathology is uncommon in childhood. A 3-year-6 month-old boy was admitted with prolonged fever and dyspnea. Chest X-ray showed a non systemized, well limited, thick walled, hydric, and excavated opacity containing an air-fluid level. Chest ultrasound examination showed a collection of 6. 8 cm of diameter in the right pulmonary field with an air-fluid level. Hemoculture showed Staphylococcus aureus. The patient received large spectrum antibiotherapy. Three days after, he presented a septic shock and surgical drainage was indicated. Histological examination confirmed the diagnosis of lung abscess. Any underlying condition such as inoculation site, local cause or immune deficiency, was noted and diagnosis of primary abscess was made. The patient demonstrated complete recovery. He is asymptomatic with normal chest X-ray and pulmonary function after 3 years of evolution. Lung abscess represent a rare cause of prolonged fever in childhood. An underlying condition must be excluded to eliminate secondary abscess. Copyright © 2014 Elsevier Masson SAS. All rights reserved.

  9. Pyogenic liver abscess

    MedlinePlus

    Liver abscess; Bacterial liver abscess ... There are many possible causes of liver abscesses, including: Abdominal infection, such as appendicitis , diverticulitis , or a perforated bowel Infection in the blood Infection of the bile draining tubes ...

  10. Amebic liver abscess

    MedlinePlus

    ... abscess URL of this page: //medlineplus.gov/ency/article/000211.htm Amebic liver abscess To use the sharing features on this page, please enable JavaScript. Amebic liver abscess is a collection of pus ...

  11. Breast Abscess

    PubMed Central

    Ajao, Oluwole G.; Ajao, Adebola O.

    1979-01-01

    Breast abscess is a relatively important disease in the tropics, and yet this condition has received little attention in the literature. Breast abscess encourages artificial feeding, which in many instances may be responsible for gastroenteritis in infants. This occurs when foods are not properly prepared by mothers of low socioeconomic class with inadequate sanitation. Breast abscess occurs primarily in the lactating breast and is most commonly located in the upper half of the breast. The organism most commonly present in the pus is Staphylococcus aureus. When the abscess is localized, it may present with all the clinical features of a breast carcinoma. PMID:522185

  12. Pilonidal abscess in the breast: a case report

    PubMed Central

    Lahiri, Rashmi; Mullen, Russell; Ashton, Mark A.; Abbott, Nick C.; Pollock, Anne Marie

    2014-01-01

    Pilonidal sinus is a common entity, most often occurring in the natal cleft. Pilonidal sinus with abscess formation has also been described in hairdressers in the interdigital space. We report a case of pilonidal abscess of the breast in a hairdresser, a rarely reported site, which requires awareness on the clinician's part of this occupational risk, for appropriate management and post-surgery advice on prevention. It is particularly important to impart such information to the reporting pathologist who is key to making this histological diagnosis. PMID:24950682

  13. Extremely large breast abscess in a breastfeeding mother.

    PubMed

    Martic, Krešimir; Vasilj, Oliver

    2012-11-01

    Puerperal mastitis often occurs in younger primiparous women. Most cases occur between 3 and 8 weeks postpartum. If mastitis results in the formation of a breast abscess, surgical drainage or needle aspiration is most commonly performed. We report a case of an extremely large breast abscess in a primiparous 20-year-old woman, which presented 6 weeks postpartum. Surgical incision and evacuation of 2 liters of exudate were performed, and intravenous antibiotics therapy was administered. On the sixth day after incision, we secondarily closed the wound. Examination after 3 months showed symmetrical breasts with a small scar in the incision area of the right breast. A high degree of suspicion and adequate diagnostic procedures are essential to avoid delay in the treatment of mastitis and breast abscess and thereby prevent unnecessary surgical treatment.

  14. [Immunological status of patients with amebic hepatic abscess].

    PubMed

    Canto Solís, A; Miranda Feria, A J; Medina Martinez, J; Teran Ortíz, L A; Suárez Sánchez, F

    1975-01-01

    The authors studied 10 cases of amoebic hepatic abscess documented by clinical evidence and confirmed by laboratory tests, liver scan and a good response to treatment. The immunological state of the patients was determined by protein electrophoresis, immunoelectrophoresis, counter-immunoelectrophoresis, radial immunodiffusion and roset formation for T and B lymphocytes. It is concluded that the alterations of cellular and humoral immunity is evident in cases of amoebic hepatic abscess; this alterations are more clear in the acute form of the illness and the immunological deficiency is more significant in the celular immunity.

  15. Thyroidal abscesses in third and fourth branchial anomalies: not only a paediatric diagnosis.

    PubMed

    Kruijff, Schelto; Sywak, Mark S; Sidhu, Stan B; Shun, Albert; Novakovic, Daniel; Lee, James C; Delbridge, Leigh W

    2015-01-01

    Acute suppurative thyroiditis and recurrent abscess formation due to third and fourth branchial anomalies typically present in children. However, thyroid abscesses in branchial anomalies may occur in adulthood as well. Failure to recognize and delayed drainage of a neck abscess may lead to a fulminant life-threatening outcome. This is a retrospective case series. The study group comprised all patients presenting over a 12-month period from January to December 2012 with thyroid abscesses and a branchial cleft anomaly in two centres, one adult and the other paediatric. Patient demographics, clinical presentation, imaging, surgical management, definitive histology and outcomes were documented. Five patients were identified with a history of thyroid abscesses. Only one was a child (aged 9 years) with the other four being adults (aged 20, 34, 37 and 41 years). All patients had third or fourth left branchial cleft anomalies, presenting as suppurative thyroiditis with a left-sided thyroid abscess. Management options ranged from abscess drainage on initial presentation, primary thyroid lobectomy or delayed thyroid lobectomy following abscess drainage. Acute suppurative thyroidits and thyroid abscesses is not just a paediatric diagnosis but may present at any age. In both children and adults, a thyroid abscess almost always arises from branchial cleft anomalies. © 2014 Royal Australasian College of Surgeons.

  16. Peritonsillar Abscess

    MedlinePlus

    ... tonsils). But they can also be caused by mononucleosis (also called mono), or tooth and gum infections. ... Family Health, Kids and Teens, Men, WomenTags: abscess, mononucleosis, peritonsillar abscess, pharyngitis, Throat Pain, tonsilitis, tonsils September ...

  17. Maxillary Teeth Abscesses Result in Atypical Liver Abscesses

    PubMed Central

    Gupta, Vritti; Vivekanandan, Renuga; Gorby, Gary

    2018-01-01

    Hepatic liver abscesses are often misdiagnosed on initial presentation because pyogenic liver lesions are a rare occurrence in the United States. This leads to a delay in proper treatment and results in increasing morbidity and mortality. Our case report demonstrates the atypical presentation of a hepatic liver abscess in the elderly. The source of infection was found to be periapical abscesses of the teeth, which subsequently seeded the portal blood stream of our patient. Our findings validate the potential hazard of Viridans streptococci and illustrate how untreated dental infections can serve as a reservoir for a systemic infection. PMID:29796365

  18. Brain abscess

    MedlinePlus

    Tunkel AR. Brain abscess. In: Bennett JE, Dolin R, Blaser MJ, eds. Mandell, Douglas, and Bennett's Principles and Practice ... Philadelphia, PA: Elsevier Saunders; 2015:chap 92. Tunkel AR, Winn HR, Scheld WM. Brain abscess. In: Winn ...

  19. [Acute periproctal abscesses].

    PubMed

    Slauf, P; Antoš, F; Marx, J

    2014-04-01

    Periproctal inflammations related to the anus are characterized by the rapid spread of the infection to the surrounding tissue, which is determined by the anatomical characteristics and infectious agents. Inflammation, which starts as a phlegmon, quickly forms boundaries and an abscess develops in most cases. Up to 80-90% of anorectal abscesses develop according to the crypto-glandular theory on the basis of infection of the anal glands, spilling into the Morgagni crypts in the anal canal. Up to two-thirds of such abscesses are associated with the emergence of anorectal fistulas. Anorectal abscesses can be divided into marginal and subcutaneous perianal abscesses, submucosal, intersphincteric, ischiorectal and supralevator abscesses. Their diagnosis is based on thorough physical examination, sometimes also with the help of imaging methods such as computed tomography, magnetic resonance imaging and endoanal ultrasound. What is decisive for the successful treatment of anorectal abscessess is their early and adequate surgical drainage. Adjuvant antibiotic therapy is necessary only when the overall signs of sepsis are present and for patients with a comorbidity such as diabetes, valvular heart disease, or immunodeficiency.

  20. Gas Accretion and Star Formation Rates

    NASA Astrophysics Data System (ADS)

    Sánchez Almeida, Jorge

    Cosmological numerical simulations of galaxy evolution show that accretion of metal-poor gas from the cosmic web drives the star formation in galaxy disks. Unfortunately, the observational support for this theoretical prediction is still indirect, and modeling and analysis are required to identify hints as actual signs of star formation feeding from metal-poor gas accretion. Thus, a meticulous interpretation of the observations is crucial, and this observational review begins with a simple theoretical description of the physical process and the key ingredients it involves, including the properties of the accreted gas and of the star formation that it induces. A number of observations pointing out the connection between metal-poor gas accretion and star formation are analyzed, specifically, the short gas-consumption time-scale compared to the age of the stellar populations, the fundamental metallicity relationship, the relationship between disk morphology and gas metallicity, the existence of metallicity drops in starbursts of star-forming galaxies, the so-called G dwarf problem, the existence of a minimum metallicity for the star-forming gas in the local universe, the origin of the α-enhanced gas forming stars in the local universe, the metallicity of the quiescent BCDs, and the direct measurements of gas accretion onto galaxies. A final section discusses intrinsic difficulties to obtain direct observational evidence, and points out alternative observational pathways to further consolidate the current ideas.

  1. Etiopathogenesis of Mandibulofacial and Maxillofacial Abscesses in Mice

    PubMed Central

    2010-01-01

    The etiologic agent of mandibulofacial and maxillofacial abscesses in mice is reportedly coagulase-positive Staphylococcus aureus. Although suggested to be through the oral cavity, the exact route of entry has not been documented. Among the clinical cases of mandibulofacial and maxillofacial abscess we report here, each case that was cultured yielded coagulase-positive S. aureus. Histologically, all of the abscesses examined were directly associated with intralesional hair shafts, both vibrissae and pelage, that were introduced into the submucosa via the maxillary or mandibular molar gingival sulci. Grossly, a variable amount of hair was imbedded in the lingual, buccal, or mesial gingival sulci of the maxillary or mandibular molars or both. Computed tomography revealed that the presence of the hair resulted in inflammation and resorption of alveolar bone. With these findings, we propose that mandibulofacial and maxillofacial abscesses are induced by the mastication and fragmentation of hair ingested during the barbering process. From the resulting foreign body periodontitis, abscess formation originates at the maxillary lingual, buccal, or mesial gingival sulci, resulting in infection of the maxillary molar tooth roots with swelling or rupture through the skin inferior to the eye, or at the mandibular lingual, buccal, and or mesial gingival sulci, resulting in infection of the mandibular molar tooth roots and osteomyelitis with drainage through the skin of the ventral mandible. PMID:20579435

  2. Breast abscess due to Salmonella paratyphi A : Case reports with review of literature.

    PubMed

    Agrawal, Sonu; Yadav, Vishwanath Singh; Srivastava, Anurag; Kapil, Arti; Dhawan, Benu

    2018-05-01

    Salmonella paratyphi A causes paratyphoid fever which is characterized by acute onset of fever, abdominal pain, diarrhoea, nausea and vomiting. Localized disease can occur following both overt and silent bacteremia followed by seeding of bacteria at distant sites. Salmonella species though associated with abscess formation in various organs,are rarely associated with breast abscess. We report 2 cases of breast abscess due to Salmonella enterica serotype paratyphi A. Appropriate sampling, surgery supplemented by a comprehensive microbiological work up aided in pathogen identification and appropriate antibiotic administration for a successful outcome of these patients.

  3. Rapid gas hydrate formation process

    DOEpatents

    Brown, Thomas D.; Taylor, Charles E.; Unione, Alfred J.

    2013-01-15

    The disclosure provides a method and apparatus for forming gas hydrates from a two-phase mixture of water and a hydrate forming gas. The two-phase mixture is created in a mixing zone which may be wholly included within the body of a spray nozzle. The two-phase mixture is subsequently sprayed into a reaction zone, where the reaction zone is under pressure and temperature conditions suitable for formation of the gas hydrate. The reaction zone pressure is less than the mixing zone pressure so that expansion of the hydrate-forming gas in the mixture provides a degree of cooling by the Joule-Thompson effect and provides more intimate mixing between the water and the hydrate-forming gas. The result of the process is the formation of gas hydrates continuously and with a greatly reduced induction time. An apparatus for conduct of the method is further provided.

  4. A Case of Orbital Abscess following Porous Orbital Implant Infection

    PubMed Central

    Hong, Seung Woo; Paik, Ji-Sun; Kim, So-Youl

    2006-01-01

    Purpose We present a case of orbital abscess following porous orbital implant infection in a 73-year-old woman with rheumatoid arthritis. Methods Just one month after a seemingly uncomplicated enucleation and porous polyethylene (Medpor®) orbital implant surgery, implant exposure developed with profuse pus discharge. The patient was unresponsive to implant removal and MRI confirmed the presence of an orbital pus pocket. Despite extirpation of the four rectus muscles, inflammatory granulation debridement and abscess drainage, another new pus pocket developed. Results After partial orbital exenteration, the wound finally healed well without any additional abscess formation. Conclusions A patient who has risk factors for delayed wound healing must be examined thoroughly and extreme care such as exenteration must be taken if there is persistent infection. PMID:17302210

  5. Post-menopausal breast abscess.

    PubMed Central

    Raju, G. C.; Naraynsingh, V.; Jankey, N.

    1986-01-01

    Thirty post-menopausal women with breast abscess were treated at Port of Spain General Hospital, Trinidad, between 1976 and 1980. In this age group, breast abscess can be confused with cancer due to a lack of inflammatory features. History and physical examination are often not helpful in differentiating an abscess from carcinoma. Although the usual treatment of an abscess is incision and drainage, in post-menopausal women, excision of the lesion is helpful for accurate histological diagnosis. PMID:3628144

  6. Lingual abscesses in three dogs.

    PubMed

    von Doernberg, M C; Peeters, M E; ter Haar, G; Kirpensteijn, J

    2008-08-01

    Lingual abscessation is a rare condition in dogs. Very little information is available on the diagnosis and treatment of lingual abscesses in the major surgical textbooks and current veterinary literature. The common clinical signs of lingual abscesses are macroglossia, hypersalivation and a reluctance to open the mouth, but these can vary depending on the time course of the disease and the location of the abscess. This article presents three cases of tongue abscess in the dog outlining treatment and outcomes. A thorough diagnostic work up, consisting of anamnesis, clinical and haematological examinations, oral inspection under sedation and the use of diagnostic imaging techniques should be mandatory before surgical exploration of the abscess. Surgery is followed by drainage and systemic antibiotics, complemented by systemic fluid support and pain management. Conservative management of lingual abscesses can be fatal. Sharp trauma from an unknown object is suspected to be the underlying cause for the abscesses in the present cases.

  7. Microbiology of liver abscesses and the predictive value of abscess gram stain and associated blood cultures.

    PubMed

    Chemaly, Roy F; Hall, Gerri S; Keys, Thomas F; Procop, Gary W

    2003-08-01

    Although rare, pyogenic liver abscesses are potentially fatal. We evaluated the predictive value of Gram stain of liver abscess aspirates and temporally associated blood cultures. Gram stains detected bacteria in 79% of the liver abscesses tested. The sensitivity and specificity of Gram stain of the liver abscesses were 90% and 100% for Gram-positive cocci (GPC) and 52% and 94% for Gram-negative bacilli (GNB). The sensitivities of the blood cultures for any GPC and GNB present in the liver abscess were 30% and 39%, respectively. Although, Gram stains and blood cultures offer incomplete detection of the microbial contents of pyogenic liver abscesses, both tests should always accompany liver abscess cultures.

  8. Synergistic Effect of Combined Hollow Viscus Injuries on Intra-Abdominal Abscess Formation.

    PubMed

    Paulus, Elena M; Croce, Martin A; Shahan, Charles P; Zarzaur, Ben L; Sharpe, John P; Dileepan, Amirtha; Boyd, Brandon S; Fabian, Timothy C

    2015-07-01

    The strong association between penetrating colon injuries and intra-abdominal abscess (IAA) formation is well established and attributed to high colon bacterial counts. Since trauma patients are rarely fasting at injury, stomach and small bowel colony counts are also elevated. We hypothesized that there is a synergistic effect of increased IAA formation with concomitant stomach and/or colon injuries when compared to small bowel injuries alone. Consecutive patients at a level one trauma center with penetrating small bowel (SB), stomach (S), and/or colon (C) injuries from 1996 to 2012 were reviewed. Logistic regression determined associations with IAA, adjusting for age, gender, Injury Severity Score (ISS), admission Glasgow Coma Score, transfusions, and concurrent pancreas or liver injury. A total of 1518 patients (91% male, ISS = 15.9 ± 8.4) were identified: 496 (33%) SB, 231 (15%) S, 288 (19%) C, 40 (3%) S + SB, 69 (5%) S + C, 338 (22%) C + SB, and 56 (4%) S + C + SB. 148 (10%) patients developed IAA: 4 per cent SB, 9 per cent S, 10 per cent C, 5 per cent S + SB, 22 per cent S + C, 13 per cent C + SB, and 25 per cent S + C + SB. Multiple logistic regression demonstrated that ISS, 24 hour blood transfusions, and concomitant pancreatic or liver injuries were associated with IAA. Compared with reference SB, S or S + SB injuries were no more likely to develop IAA. However, S + C, SB + C, and S + C + SB injuries were significantly more likely to have IAA. In conclusion, combined stomach + colon, small bowel + colon, and stomach, colon, + small bowel injuries have a synergistic effect leading to increased IAA formation after penetrating injuries. Heightened clinical suspicion for IAA formation is necessary in these combined hollow viscus injury patients.

  9. Neonatal orbital abscess

    PubMed Central

    Al-Salem, Khalil M; Alsarayra, Fawaz A; Somkawar, Areej R

    2014-01-01

    Orbital complications due to ethmoiditis are rare in neonates. A case of orbital abscess due to acute ethmoiditis in a 28-day-old girl is presented. A Successful outcome was achieved following antimicrobial therapy alone; spontaneous drainage of the abscess occurred from the lower lid without the need for surgery. From this case report, we intend to emphasize on eyelid retraction as a sign of neonatal orbital abscess, and to review all the available literature of similar cases. PMID:24008806

  10. Gas hydrate suspensions formation and transportation research

    NASA Astrophysics Data System (ADS)

    Gulkov, A. N.; Gulkova, S.; Zemenkov, Yu D.; Lapshin, V. D.

    2018-05-01

    An experimental unit for studying the formation of gas hydrate suspensions and their transport properties is considered. The scheme of installation and the basic processes, which can be studied, are described. The results of studies of gas hydrates and a gas hydrate suspension’ formation in an adiabatic process in a stream of seawater are given. The adiabatic method of obtaining gas hydrates and forming gas hydrate suspensions is offered to use. Directions for further research are outlined.

  11. Breast abscess due to Salmonella paratyphi A : Case reports with review of literature

    PubMed Central

    Agrawal, Sonu; Yadav, Vishwanath Singh; Srivastava, Anurag; Kapil, Arti; Dhawan, Benu

    2018-01-01

    Summary Salmonella paratyphi A causes paratyphoid fever which is characterized by acute onset of fever, abdominal pain, diarrhoea, nausea and vomiting. Localized disease can occur following both overt and silent bacteremia followed by seeding of bacteria at distant sites. Salmonella species though associated with abscess formation in various organs,are rarely associated with breast abscess. We report 2 cases of breast abscess due to Salmonella enterica serotype paratyphi A. Appropriate sampling, surgery supplemented by a comprehensive microbiological work up aided in pathogen identification and appropriate antibiotic administration for a successful outcome of these patients. PMID:29862156

  12. Outbreak of pyogenic abscesses after diphtheria and tetanus toxoids and pertussis vaccination.

    PubMed

    Simon, P A; Chen, R T; Elliott, J A; Schwartz, B

    1993-05-01

    Nine children who received diphtheria and tetanus toxoids and pertussis vaccine from the same vial at a clinic in Colorado developed pyogenic abscesses at the site of injection. Eight abscesses required surgical drainage and five children were hospitalized. Group A Streptococcus (GAS) was cultured from eight wounds and Staphylococcus aureus was also isolated from four. Epidemiologic investigation revealed that within the hour of the first child's vaccination, three children had been diagnosed in the clinic with GAS pharyngitis. GAS recovered from repeat throat swabs from two of these children and the eight case-isolates were all serotype M-12, T-12 and had identical immunoblot patterns on sodium dodecyl sulfate-polyacrylamide gel electrophoresis. Laboratory simulation studies demonstrated that GAS can survive for at least 4 days on the external surface of a vaccine vial rubber stopper and contaminate needles inserted through the stopper. Swabbing the stopper with 70% isopropyl alcohol resulted in effective disinfection. To prevent potential contamination meticulous attention to sterile technique is important when withdrawing vaccine from multidose vaccine vials.

  13. [Management of Lung Abscess].

    PubMed

    Marra, A; Hillejan, L; Ukena, D

    2015-10-01

    A lung abscess is an infectious pulmonary disease characterised by the presence of a pus-filled cavity within the lung parenchyma. The content of an abscess often drains into the airways spontaneously, leading to an air-fluid level visible on chest X-rays and CT scans. Primary lung abscesses occur in patients who are prone to aspiration or in otherwise healthy individuals; secondary lung abscesses typically develop in association with a stenosing lung neoplasm or a systemic disease that compromises immune defences, such as AIDS, or after organ transplantation. The organisms found in abscesses caused by aspiration pneumonia reflect the resident flora of the oropharynx. The most commonly isolated organisms are anaerobic bacteria (Prevotella, Bacteroides, Fusobacterium, Peptostreptococcus) or streptococci; in alcoholics with poor oral hygiene, the spectrum of pathogens includes Staphylococcus aureus, Streptococcus pyogenes and Actinomyces. Chest radiography and computed tomography (CT) are mandatory procedures in the diagnostic algorithm. Standard treatment for a lung abscess consists of systemic antibiotic therapy, which is based on the anticipated or proven bacterial spectrum of the abscess. In most cases, primary abscesses are successfully treated by calculated empiric antibiotic therapy, with an estimated lethality rate of less than 10 %. Secondary abscesses, despite targeted antimicrobial therapy, are associated with a poor prognosis, which depends on the patient's general condition and underlying disease; lethality is as high as 75 %. Negative prognostic factors are old age, severe comorbidities, immunosuppression, bronchial obstruction, and neoplasms. Surgical intervention due to failure of conservative treatment is required in only 10 % of patients, with a success rate of up to 90 % and postoperative mortality rates ranging between 0 and 33 %. Treatment success after endoscopic or percutaneous drainage is achieved in 73 to 100 % of cases, with an

  14. Formation of soap bubbles by gas jet

    NASA Astrophysics Data System (ADS)

    Zhou, Maolei; Li, Min; Chen, Zhiyuan; Han, Jifeng; Liu, Dong

    2017-12-01

    Soap bubbles can be easily generated by various methods, while their formation process is complicated and still worth studying. A model about the bubble formation process was proposed in the study by Salkin et al. [Phys. Rev. Lett. 116, 077801 (2016)] recently, and it was reported that the bubbles were formed when the gas blowing velocity was above one threshold. However, after a detailed study of these experiments, we found that the bubbles could be generated in two velocity ranges which corresponded to the laminar and turbulent gas jet, respectively, and the predicted threshold was only effective for turbulent gas flow. The study revealed that the bubble formation was greatly influenced by the aerodynamics of the gas jet blowing to the film, and these results will help to further understand the formation mechanism of the soap bubble as well as the interaction between the gas jet and the thin liquid film.

  15. 18 CFR 270.304 - Tight formation gas.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... determination that natural gas is tight formation gas must file with the jurisdictional agency an application... formation; (d) A complete copy of the well log, including the log heading identifying the designated tight...

  16. Understanding the Lung Abscess Microbiome: Outcomes of Percutaneous Lung Parenchymal Abscess Drainage with Microbiologic Correlation.

    PubMed

    Duncan, Christopher; Nadolski, Gregory J; Gade, Terence; Hunt, Stephen

    2017-06-01

    Lung parenchymal abscesses represent an uncommon pathology with high mortality if untreated. Although most respond well to antibiotics, the optimal therapy for persistent abscesses is unknown. The purpose of this study was to review the outcomes of percutaneous lung parenchymal abscess catheter drainage after broad-spectrum antibiotic therapy failure and correlate with patient microbiologic samples. Retrospective review of patients who underwent percutaneous lung abscess drainage at a tertiary hospital system from 2005 to 2015 was performed. In total, 19 procedures were identified on 16 different patients; six females and ten males. Mean patient age was 55 years (range 22-81). Median follow-up time was 7 months (range <1-78). Technical success was 100%. There was one major complication, a pneumothorax. Follow-up was until tube removal or death in 100% of patients. Catheters were removed with resolution of the abscess cavity in 58% (11/19) or with non-draining abscess cavities in 21% (4/19) for a clinical success rate of 79%. Blood cultures demonstrated no growth in all cases, while 21% (4/19) of sputum or bronchoscopic cultures demonstrated growth. In comparison, the specimens from initial catheter placement isolated a causative organism in 95% (18/19) of case (p < 0.0001). In cases of persistent lung abscess after broad-spectrum antibiotics, percutaneous abscess drainage is highly sensitive for microbiologic sampling compared to sputum/bronchoscopic or blood cultures. Additionally, percutaneous drainage of lung parenchymal abscess cavities may promote resolution of the abscess with high rates of therapeutic success and low complications.

  17. Invasive liver abscess syndrome predisposed by Klebsiella pneumoniae related prostate abscess in a nondiabetic patient: a case report.

    PubMed

    Liao, Chen-Yi; Yang, Ya-Sung; Yeh, Yen-Cheng; Ben, Ren-Jy; Lee, Ching-Chang; Tsai, Chi-Chang; Wang, Chien-Yao; Kuo, Wu-Hsien; Wang, Chih-Chiang

    2016-08-09

    Prostate abscess is usually a complication of acute urinary tract infection. Invasive liver abscess syndrome is characterized with Klebsiella pneumoniae related multiple organ metastasis. Concomitant pyogenic liver abscess and prostate abscess have rarely been reported. Recurrent episode of liver abscess is even rarer. We report a 71-year-old male with acute bacterial prostate abscess and urinary tract infection caused by K. pneumoniae associated with multiple liver abscess, psoas muscle abscess and osteomyelitis. Blood culture and urine culture yielded K. pneumoniae, which confirmed the diagnosis of invasive liver abscess syndrome caused by K. pneumoniae. The patient was successfully treated with empirical antibiotics for 6 weeks. This case emphasizes the importance of timely and accurate diagnosis followed by appropriate treatment in disseminated K. pneumoniae infection to prevent significant morbidity and mortality.

  18. Risk of Liver Abscess Formation in Patients with Prior Biliary Intervention Following Yttrium-90 Radioembolization

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Cholapranee, Aurada; Houten, Diana van; Deitrick, Ginna

    PurposePatients without a competent sphincter of Oddi due to prior surgical or endoscopic therapy are at high risk for liver abscess following chemoembolization despite aggressive antimicrobial prophylaxis. We examined a cohort of such patients undergoing Y-90 resin radioembolization and compared them to a cohort of chemoembolized patients.MethodsReview of our quality-assurance database identified 24 radioembolizations performed in 16 patients with prior biliary intervention. An aggressive prophylactic regimen of oral levofloxacin and metronidazole 2 days pre-procedure continuing for 14 days after, oral neomycin/erythromycin bowel prep the day before, and IV levofloxacin/metronidazole the day of treatment was prescribed. Patients underwent resin microsphere radioembolization dosed accordingmore » to the BSA method. Patients had clinical, imaging, and laboratory assessment 1 month after each treatment, and then every 3 months. The chemoembolization cohort consisted of 13 patients with prior biliary intervention who had undergone 24 chemoembolization procedures.ResultsNo radioembolization patient developed an abscess. In the cohort of chemoembolized patients who received the same prophylaxis, liver abscess occurred following 3 of 24 (12.5 %) procedures in 3 of 13 (23 %) patients, one fatal.ConclusionsThis preliminary experience suggests that the risk of liver abscess among patients with prior biliary intervention may be lower following radioembolization than chemoembolization, which could potentially expand treatment options in this high-risk population.« less

  19. Gas-Phase Infrared; JCAMP Format

    National Institute of Standards and Technology Data Gateway

    SRD 35 NIST/EPA Gas-Phase Infrared; JCAMP Format (PC database for purchase)   This data collection contains 5,228 infrared spectra in the JCAMP-DX (Joint Committee for Atomic and Molecular Physical Data "Data Exchange") format.

  20. Understanding the Lung Abscess Microbiome: Outcomes of Percutaneous Lung Parenchymal Abscess Drainage with Microbiologic Correlation

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Duncan, Christopher; Nadolski, Gregory J.; Gade, Terence

    IntroductionLung parenchymal abscesses represent an uncommon pathology with high mortality if untreated. Although most respond well to antibiotics, the optimal therapy for persistent abscesses is unknown. The purpose of this study was to review the outcomes of percutaneous lung parenchymal abscess catheter drainage after broad-spectrum antibiotic therapy failure and correlate with patient microbiologic samples.Materials and MethodsRetrospective review of patients who underwent percutaneous lung abscess drainage at a tertiary hospital system from 2005 to 2015 was performed. In total, 19 procedures were identified on 16 different patients; six females and ten males. Mean patient age was 55 years (range 22–81). Median follow-upmore » time was 7 months (range <1–78).ResultsTechnical success was 100%. There was one major complication, a pneumothorax. Follow-up was until tube removal or death in 100% of patients. Catheters were removed with resolution of the abscess cavity in 58% (11/19) or with non-draining abscess cavities in 21% (4/19) for a clinical success rate of 79%. Blood cultures demonstrated no growth in all cases, while 21% (4/19) of sputum or bronchoscopic cultures demonstrated growth. In comparison, the specimens from initial catheter placement isolated a causative organism in 95% (18/19) of case (p < 0.0001).ConclusionIn cases of persistent lung abscess after broad-spectrum antibiotics, percutaneous abscess drainage is highly sensitive for microbiologic sampling compared to sputum/bronchoscopic or blood cultures. Additionally, percutaneous drainage of lung parenchymal abscess cavities may promote resolution of the abscess with high rates of therapeutic success and low complications.« less

  1. Splenic abscess owing to cancer at the splenic flexure

    PubMed Central

    Awotar, Gavish K.; Luo, Fuwen; Zhao, Zhengdong; Guan, Guoxin; Ning, Shili; Ren, Jinshuai; Liu, Yaqing; Wang, Guangzhi; Liu, Pixu

    2016-01-01

    Abstract Background: The cancer of the splenic flexure of the colon is a rare medical entity with severe morbidity because of its insidious onset. Methods: We present the case of a 59-year-old male patient with dull left upper quadrant pain, leukocytosis, and anemia. A splenic abscess described as an air-fluid level with splenocolic fistula was found on CT scan imaging. Surgery was done for splenic pus drainage. He was again admitted 2 months later for intestinal obstruction. Results: An exploratory laparotomy showed multiple hard, gray liver nodules as well as a hard mass in the small bowel. Owing to extensive adhesions and a late stage of cancer involvement, the splenic flexure tumor was not resected. A loop transverse colostomy was done and a ColoplastTM Colostomy bag placed. We also reviewed the literature-linking colon cancer and splenic abscess with specific attention to the carcinoma of the splenic flexure. As the latter invades through the spleen matter, there is the creation of a splenocolic fistula, which allows the migration of normal gut flora into the spleen. This leads to the formation of the splenic abscess. Conclusion: This is the 13th case report pertaining to invading colonic cancer causing a splenic abscess. Although the treatment for splenic abscesses is shifting from splenectomy to image-guided percutaneous pus drainage, the few reported cases make the proper management of such complication still unclear. PMID:27661050

  2. Nosocomial cutaneous abscesses in septic infants.

    PubMed

    Mandel, D; Littner, Y; Mimouni, F B; Dollberg, S

    2004-03-01

    To retrospectively study the epidemiology of nosocomial cutaneous abscesses in 46 consecutive septic infants. Ten infants had one abscess or more. Surviving infants with abscesses had a longer duration of bacteraemia, which disappeared within 24 hours of drainage. Infants with persistent bacteraemia should be examined regularly for the presence of abscesses.

  3. A GAS-PHASE FORMATION ROUTE TO INTERSTELLAR TRANS-METHYL FORMATE

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Cole, Callie A.; Wehres, Nadine; Yang Zhibo

    2012-07-20

    The abundance of methyl formate in the interstellar medium has previously been underpredicted by chemical models. Additionally, grain surface chemistry cannot account for the relative abundance of the cis- and trans-conformers of methyl formate, and the trans-conformer is not even formed at detectable abundance on these surfaces. This highlights the importance of studying formation pathways to methyl formate in the gas phase. The rate constant and branching fractions are reported for the gas-phase reaction between protonated methanol and formic acid to form protonated trans-methyl formate and water as well as adduct ion: Rate constants were experimentally determined using a flowingmore » afterglow-selected ion flow tube apparatus at 300 K and a pressure of 530 mTorr helium. The results indicate a moderate overall rate constant of (3.19 {+-} 0.39) Multiplication-Sign 10{sup -10} cm{sup 3} s{sup -1} ({+-} 1{sigma}) and an average branching fraction of 0.05 {+-} 0.04 for protonated trans-methyl formate and 0.95 {+-} 0.04 for the adduct ion. These experimental results are reinforced by ab initio calculations at the MP2(full)/aug-cc-pVTZ level of theory to examine the reaction coordinate and complement previous density functional theory calculations. This study underscores the need for continued observational studies of trans-methyl formate and for the exploration of other gas-phase formation routes to complex organic molecules.« less

  4. [A case of Bezold's abscess associated with cholesteatoma].

    PubMed

    Furukawa, K; Arai, E; Kobayashi, T; Takasaka, T

    1992-12-01

    Since the advent of antibiotics, otogenic complications have decreased considerably. However, incomplete antibiotic therapy has altered the clinical course of middle ear disease so as to be more insidious. This paper reports a case of Bezold's abscess associated with cholesteatoma. A 48-year-old man visited our hospital presenting with a 4-day history of right otorrhea and a tender swelling in the right neck. Physical examination showed a febrile patient (38.8 degrees C) with right facial paresis and trismus. A hyperemic, hard and tender swelling was observed in his right neck from the lateral cervical to the mental region. The tympanic membrane was invisible because of granulation and swelling of the posterior wall of the external auditory canal. Intravenous clindamycin and ceftazidime therapy was started immediately. A CT-scan revealed a diffuse shadow with bony destruction in the right mastoid cortex. Extensive abscess formation was also found in the right sternocleidomastoid muscle, in the anterior neck and in the posterior neck. He was diagnosed as having Bezold's abscess associated with cholesteatoma. Radical mastoidectomy and drainage of the neck abscess was performed on the third day under general anesthesia. The mastoid cavity was found to be filled with pus and cholesteatoma debris. A small area of defective bone was found at the mastoid tip, through which there were communications between the mastoid cavity and the abscesses in the neck. Bony destruction was also found in the horizontal and vertical portion of the facial canal. Bacteroides and three kinds of gram-negative rods were cultured from the mastoid cavity.(ABSTRACT TRUNCATED AT 250 WORDS)

  5. Bartholin cyst or abscess

    MedlinePlus

    ... is very rare. Any vaginal discharge or fluid drainage will be sent to a lab for testing. ... and closes quickly. Therefore, the abscess often returns. DRAINAGE OF THE ABSCESS A small surgical cut can ...

  6. Medically Treated Diverticular Abscess Associated With High Risk of Recurrence and Disease Complications.

    PubMed

    Devaraj, Bikash; Liu, Wendy; Tatum, James; Cologne, Kyle; Kaiser, Andreas M

    2016-03-01

    The best management for diverticulitis with abscess formation remains unknown. The purpose of this study was to determine the natural course and outcomes of patients with medically treated diverticular abscess. We conducted a retrospective review of all patients at our institution with diverticular abscess confirmed by CT from 2004 to 2014. This study was conducted in a tertiary referral hospital. A total of 1194 patients were treated for acute diverticulitis in 10 years; 210 patients with CT-documented diverticular abscess were analyzed (140 men (66.7%) and 70 women (33.3%); median age 45 years; range, 23-84 years). Overall recurrence and disease complication rates, as well as the need for subsequent operation after initial successful nonsurgical management, were measured, along with analysis of the whole cohort and the subgroup of patients with percutaneous drainage for diverticular abscess. During the initial presentation, 25 patients failed nonoperative management and required an urgent operation. A total of 185 patients were initially successfully managed without surgery and were discharged from the hospital. Of these, recurrent diverticulitis developed in 112 (60.5%) after an average time interval of 5.3 months (range, 0.8-20.0 months); 47 patients (42%) experienced more than 1 episode. The modified Hinchey stage at time of recurrence (compared with index stay) increased in 51 patients (45.6%). Seventy one (63%) of 112 recurrences showed local disease complications (recurrent abscess, fistula, stricture, or peritonitis). Fistula formation (colovesicular/colovaginal/colocutaneous) and recurrent abscess were the 2 most frequent complications. Twenty nine (26%) of 112 recurrences required an urgent operation; overall, 66 (59%) of 112 patients eventually underwent surgery at our institution. The original abscess size in patients who later developed recurrences was significantly larger than in patients who did not develop recurrence (5.3 vs 3.2 cm; p < 0

  7. [A lung abscess caused by bad teeth].

    PubMed

    van Brummelen, S E; Melles, D; van der Eerden, M

    2017-01-01

    An odontogenic cause of a lung abscess can easily be overlooked. A 61-year-old man presented at the emergency department with a productive cough and dyspnoea. He was admitted to the pulmonary ward with a suspected odontogenic lung abscess. A thorax CT scan confirmed the diagnosis 'lung abscess', following which the dental surgeon confirmed that the lung abscess probably had an odontogenic cause. The patient made a full recovery following a 6-week course of antibiotics, and he received extensive dental treatment. Poor oral hygiene can be a cause of a lung abscess. A patient with a lung abscess can be treated successfully with a 6-week course of antibiotics; however, if the odontogenic cause is not recognised the abscess can recur.

  8. Abscess - abdomen or pelvis

    MedlinePlus

    ... risk for an abdominal abscess if you have: Trauma Perforated ulcer disease Surgery in your belly area Weakened immune system Germs may pass through your blood to an organ in your belly. Sometimes, no reason can be found for an abscess.

  9. Peritonsillar Abscess (For Teens)

    MedlinePlus

    ... Feelings Expert Answers Q&A Movies & More for Teens Teens site Sitio para adolescentes Body Mind Sexual Health ... Educators Search English Español Peritonsillar Abscess KidsHealth / For Teens / Peritonsillar Abscess Print en español Abscesos periamigdalinos What's ...

  10. Lesion Formation and Antibody Response Induced by Papillomatous Digital Dermatitis-Associated Spirochetes in a Murine Abscess Model▿

    PubMed Central

    Elliott, Margaret K.; Alt, David P.; Zuerner, Richard L.

    2007-01-01

    Papillomatous digital dermatitis (PDD), also known as hairy heel wart, is a growing cause of lameness of cows in the U.S. dairy industry. Farms with PDD-afflicted cows experience economic loss due to treatment costs, decreased milk production, lower reproductive efficiency, and premature culling. While the exact cause of PDD is unknown, lesion development is associated with the presence of anaerobic spirochetes. This study was undertaken to investigate the virulence and antigenic relatedness of four previously isolated Treponema phagedenis-like spirochetes (1A, 3A, 4A, and 5B) by using a mouse abscess model with subcutaneous inoculation of 109, 1010, and 1011 spirochetes. Each of the PDD isolates induced abscess formation, with strain 3A causing cutaneous ulceration. Lesion development and antibody responses were dose dependent and differed significantly from those seen with the nonpathogenic human T. phagedenis strain. Strains 3A, 4A, and 5B showed two-way cross-reactivity with each other and a one-way cross-reaction with T. phagedenis. Strain 5B showed one-way cross-reactivity with 1A. None of the isolates showed cross-reactivity with T. denticola. In addition, distinct differences in immunoglobulin G subclass elicitation occurred between the PDD strains and T. phagedenis. From these data, we conclude that spirochetes isolated from PDD lesions have differential virulence and antigenic traits in vivo. Continuing investigation of these properties is important for the elucidation of virulence mechanisms and antigenic targets for vaccine development. PMID:17591787

  11. Legionella pneumophila lung abscess associated with immune suppression.

    PubMed

    Guy, S D; Worth, L J; Thursky, K A; Francis, P A; Slavin, M A

    2011-10-01

    Legionella species are a common cause of community-acquired pneumonia, infrequently complicated by cavitary disease. We describe Legionella pneumophila pneumonia and abscess formation in an immunosuppressed patient receiving corticosteroid therapy for metastatic breast carcinoma. The predisposing role of corticosteroids is discussed and the management of this complication is reviewed. © 2011 The Authors. Internal Medicine Journal © 2011 Royal Australasian College of Physicians.

  12. Splenic abscess and multiple brain abscesses caused by Streptococcus intermedius in a young healthy man

    PubMed Central

    Caire, William; Nair, Rajasree; Bridges, Debbie

    2011-01-01

    We report a case of splenic abscess with multiple brain abscesses caused by Streptococcus intermedius in a healthy young man without any identifiable risk factors, which resolved with percutaneous drainage and antibiotics. Streptococcus intermedius, a member of the Streptococcus anginosus group, is a common commensal organism of the oral cavity and gastrointestinal tract, and it is a known cause of deep-seated infections. Suppurative infections caused by Streptococcus anginosus group are sometimes associated with bacteremia, but hematogenous spread of infection from an occult source leading to concurrent splenic abscess and multiple brain abscesses has never been previously reported in a healthy young individual. PMID:21738290

  13. Pituitary abscess following transsphenoidal surgery: the experience of 12 cases from a single institution.

    PubMed

    Wang, Lei; Yao, Yong; Feng, Feng; Deng, Kan; Lian, Wei; Li, Guilin; Wang, Renzhi; Xing, Bing

    2014-09-01

    To explore possible reasons for the incidence of a pituitary abscess following transsphenoidal surgery and determine the most effective treatment. A series of 12 patients who had undergone transsphenoidal surgery in other hospitals before being treated at Peking Union Medical College Hospital were reviewed. The presence of a pituitary abscess was confirmed when pus was intraoperatively observed within the sella turcica. All patients were treated with debridement of the abscess, nine among whom through a transsphenoidal approach and the other three via a craniotomy, followed by antibiotic treatment and hormone replacement therapy. The mean follow-up time was 27.0 months (range from 3.0 to 79.0 months). Headache (92%), panhypopituitarism (58%) and visual disturbance (50%) were the most common clinical indicators of a pituitary abscess. Imaging tests demonstrated a pituitary mass in all patients, with seven (58%) manifested with typical magnetic resonance features of an abscess. Ten patients (83%) were correctly diagnosed preoperatively. During surgical exploration, six presented with severe inflammation or an abscess within the sphenoidal sinus. Causative organisms were identified in five patients (42%). After surgical and antibiotic therapies, all patients fully recovered except for two presenting with severe visual impairment. Six patients (50%) required hormone replacement therapy. Retrograde infection from the sphenoid sinus may be a vital mechanism underlying the formation of a pituitary abscess following transsphenoidal surgery. Debridement of the abscess through surgical approaches combined with antibiotic treatment has been found to yield positive outcomes. Copyright © 2014 Elsevier B.V. All rights reserved.

  14. Shale Gas Well, Hydraulic Fracturing, and Formation Data to Support Modeling of Gas and Water Flow in Shale Formations

    NASA Astrophysics Data System (ADS)

    Edwards, Ryan W. J.; Celia, Michael A.

    2018-04-01

    The potential for shale gas development and hydraulic fracturing to cause subsurface water contamination has prompted a number of modeling studies to assess the risk. A significant impediment for conducting robust modeling is the lack of comprehensive publicly available information and data about the properties of shale formations, shale wells, the process of hydraulic fracturing, and properties of the hydraulic fractures. We have collated a substantial amount of these data that are relevant for modeling multiphase flow of water and gas in shale gas formations. We summarize these data and their sources in tabulated form.

  15. Herpesviruses in Abscesses and Cellulitis of Endodontic Origin

    PubMed Central

    Chen, Vicky; Chen, Yanwen; Li, Hong; Kent, Karla; Baumgartner, J. Craig; Machida, Curtis A.

    2009-01-01

    Acute apical abscesses and cellulitis are severe endodontic diseases caused by opportunistic bacteria with possible co-infection with latent herpesviruses. The objectives of this study are to identify herpesviruses, including human cytomegalovirus (HCMV), Epstein-Barr virus (EBV), herpes simplex virus-1 (HSV-1) and Varicella zoster virus (VZV), in patients (n=31) presenting with acute apical abscesses and cellulitis of endodontic origin. Primary and nested polymerase chain reaction (PCR) was conducted using virus-specific primers and DNA isolated from cell-free abscess fluid. From patients exhibiting concurrent spontaneous pain (n=28), nine abscesses contained HCMV, two abscesses contained EBV, one abscess contained HSV-1, and no abscesses contained VZV. Control PCR using genomic or recombinant templates demonstrated detection limits to a single genomic copy of HCMV, 100 genomic copies for EBV, and 1-10 copies for HSV-1, with no cross-amplification between herpesviral DNA targets. Nested PCR was required for detection of herpesviral DNA in the abscess specimens, indicating that these viruses were present in low copy number. Filtration of abscess specimens and virus transfer experiments using human fibroblastic MRC-5 cells confirmed the presence of HCMV particles in several abscess specimens. We conclude that herpesviruses are present, but not required for development of acute apical abscesses and cellulitis of endodontic origin. PMID:19166769

  16. [Prostatic abscess: diagnosis and treatment].

    PubMed

    Franco, A; Menéndez, V; Luque, M P; Ribal, M J; Mallafre, J M; Alcover, J; Vilana, R; Carretero, P

    1996-02-01

    Prostatic abscesses are an infrequent pathology, probably due to a better and early management of prostatic infections. Predisposing factors in this pathology are diabetes mellitus, urethral catheterism or manipulation, and immunodepressed states like AIDS. Nowadays, ultrasonography is an excellent diagnostic method of this pathology, and serves as a guidance of directed drainage. We present five cases in which the size of the abscess was determining in relation to the therapeutic attitude. Abscesses of less than 2 cm, measured by transrectal ultrasonography, can be evacuated by directed puncture, followed by antibiotic treatment. When the diameter of the abscess is greater than 2 cm, we realize a perineal drainage with a catheter placed with transrectal ultrasonography. Currently, TUR and other methods seems to be overcome.

  17. Cold tuberculous abscess identified by FDG PET.

    PubMed

    Yago, Yuzo; Yukihiro, Masashi; Kuroki, Hirofumi; Katsuragawa, Yuzo; Kubota, Kazuo

    2005-09-01

    We report FDG PET of two cases of cold abscess due to Mycobacterium tuberculosis. Case 1 had colon cancer; FDG PET showed high FDG uptake in the colon lesion and low uptake in the inguinal lesion. The latter was a tuberculous cold abscess confirmed by CT/MRI and biopsy. Case 2 received radiotherapy for lung cancer and presented with suspected vertebral metastasis. Further studies revealed tuberculosis of the vertebra and a tuberculous cold abscess in the iliopsoas muscle. FDG PET showed moderate uptake in the third lumbar spine and low uptake in the abscess center of iliopsoas lesion. Both tuberculous cold abscesses showed moderate FDG uptake in the capsule and low uptake in the center. These features are unique compared with non-tuberculous abscess and typical tuberculosis lesions, which are characterized by high FDG uptake. Pathologically, tuberculous cold abscess is not accompanied by active inflammatory reaction. Our findings suggested that the FDG uptake by tuberculous lesion varies according to the grade of inflammatory activity. The new diagnostic features of tuberculous cold abscess may be useful in the evaluation of such lesions by FDG PET.

  18. Multifocal Renal Fungal Abscesses.

    PubMed

    Cho, Eric Y; Kaplan, Joshua R; Mamone, Linda; Mydlo, Jack H; Reese, Adam C

    2016-07-01

    We report a case of multiple fungal renal abscesses in a 36-year-old woman with a history of diabetes and intravenous substance use disorder. The patient presented with fever and hematuria, and was found to be bacteremic and fungemic. She was initially managed with broad-spectrum antibiotics and antifungals. She remained febrile and imaging on treatment day 14 showed no improvement of the renal abscesses. Thus, a nephrectomy was performed, after which the patient defervesced and follow-up blood cultures were negative. There is a paucity of literature regarding management of multifocal fungal renal abscesses that fail to respond to medical management. Copyright © 2016 Elsevier Inc. All rights reserved.

  19. Hereditary hemorrhagic telangiectasia patient presenting with brain abscess due to silent pulmonary arteriovenous malformation.

    PubMed

    Themistocleous, Marios; Giakoumettis, Dimitrios; Mitsios, Andreas; Anagnostopoulos, Christos; Kalyvas, Aristoteles; Koutsarnakis, Christos

    2016-01-01

    Hereditary hemorrhagic telangiectasia is a rare autosomal dominant inherited disease that is usually complicated by visceral vascular malformations. Patients harboring such malformations are at increased risk of brain abscess formation, which despite advances in diagnostic and surgical methods remains a life threatening medical emergency with high mortality and morbidity rates. In the present report we describe a case of cerebral abscess due to silent pulmonary arteriovenous malformation (AVM) in a young patient previously undiagnosed for hereditary hemorrhagic telangiectasia syndrome (HHT).

  20. [Bacterial brain abscess--experiences with 67 patients].

    PubMed

    Berlit, P; Fedel, C; Tornow, K; Schmiedek, P

    1996-08-01

    Sixty-seven patients with brain abscess were managed over 19 years (1975-1993). Our series had a 2.5 to 1 male predominance; the age distribution was from 3 days to 81 years. The underlying conditions of hematogenic brain abscesses (n = 33; 49%) included lung infections (n = 16), heart disease (n = 4), sepsis (n = 10), and other foci (n = 3). Otolaryngologic infections led to the abscess in 10 cases; there were 9 traumatic abscesses. The causes remained unknown in 15 cases. There were 47 solitary abscesses (70%) and 20 multiple abscesses. The most frequent presenting signs and symptoms were neurologic deficits (n = 17), disturbances of consciousness (n = 14), seizures (n = 6), and headaches, meningism and vomiting (n = 13). Causative organisms were isolated in 39 cases (58%) and included staphylococci (n = 6), streptococci (n = 6), enterobacteriae (n = 2), and anaerobic pathogens (n = 9). The most reliable laboratory sign of inflammation was an elevated ESR (52/59 patients). With the advent of computed tomography, burr hole aspiration of the abscess with or without drainage was possible in 30 cases; the mortality in this subgroup was 9%. All 4 patients with surgical excision in the pre CT-era died. The mortality of patients treated with antibiotics only was 62% (18/29). Overall mortality was 37% (25/67), including 5 cases with post mortem-diagnosis of brain abscess. Good recovery was achieved in 29/42 survivors. Predictors of a poor outcome were the patient's age, the level of consciousness, multiple abscesses, polybacterial cultures, and a hematogenic etiology, but not the size of the abscess.

  1. Kinetics of formation and dissociation of gas hydrates

    NASA Astrophysics Data System (ADS)

    Manakov, A. Yu; Penkov, N. V.; Rodionova, T. V.; Nesterov, A. N.; Fesenko, E. E., Jr.

    2017-09-01

    The review covers a wide range of issues related to the nucleation, growth and dissociation of gas hydrates. The attention is focused on publications of the last 10-15 years. Along with the mathematical models used to describe these processes, the results of relevant experimental studies are surveyed. Particular sections are devoted to the gas hydrate self-preservation effect, the water memory effect in the hydrate formation, development of catalysts for hydrate formation and the effect of substances dissolved in the aqueous phase on the formation of hydrates. The main experimental techniques used to study gas hydrates are briefly considered. The bibliography includes 230 references.

  2. Neisseria gonorrhoeae paravertebral abscess.

    PubMed

    Low, Sharon Y Y; Ong, Catherine W M; Hsueh, Po-Ren; Tambyah, Paul Ananth; Yeo, Tseng Tsai

    2012-07-01

    The authors present the case of an isolated gonococcal paravertebral abscess with an epidural component in a 42-year-old man. A primary epidural abscess of the spine is a rare condition and is most commonly caused by Staphylococcus aureus. In this report, the authors present their therapeutic decisions and review the relevant literature on disseminated gonococcal infection in a patient presenting with an epidural abscess. A 42-year-old Indonesian man was admitted with symptoms of neck and upper back pain and bilateral lower-limb weakness. Clinical examination was unremarkable apart from tenderness over the lower cervical spine. Postgadolinium T1-weighted MRI of the cervical and thoracic spine demonstrated an enhancing lesion in the right paraspinal and epidural soft tissue at C-6 to T1-2, in keeping with a spinal epidural abscess. The patient underwent laminectomy of C-7 and T-1 with abscess drainage. Tissue cultures subsequently grew Neisseria gonorrhoeae that was resistant to quinolones by genotyping. Upon further questioning, the patient admitted to unprotected sexual intercourse with commercial sex workers. Further investigations showed that he was negative for other sexually transmitted infections. Postoperatively, he received a course of beta-lactam antibiotics with good recovery. Clinicians should be aware of this unusual disseminated gonococcal infection manifested in any patient with the relevant risk factors.

  3. Simulations of Early Structure Formation: Primordial Gas Clouds

    NASA Astrophysics Data System (ADS)

    Yoshida, Naoki; Abel, Tom; Hernquist, Lars; Sugiyama, Naoshi

    2003-08-01

    We use cosmological simulations to study the origin of primordial star-forming clouds in a ΛCDM universe, by following the formation of dark matter halos and the cooling of gas within them. To model the physics of chemically pristine gas, we employ a nonequilibrium treatment of the chemistry of nine species (e-, H, H+, He, He+, He++, H2, H+2, H-) and include cooling by molecular hydrogen. By considering cosmological volumes, we are able to study the statistical properties of primordial halos, and the high resolution of our simulations enables us to examine these objects in detail. In particular, we explore the hierarchical growth of bound structures forming at redshifts z~25-30 with total masses in the range ~105-106Msolar. We find that when the amount of molecular hydrogen in these objects reaches a critical level, cooling by rotational line emission is efficient, and dense clumps of cold gas form. We identify these ``gas clouds'' as sites for primordial star formation. In our simulations, the threshold for gas cloud formation by molecular cooling corresponds to a critical halo mass of ~5×105h-1Msolar, in agreement with earlier estimates, but with a weak dependence on redshift in the range z>16. The complex interplay between the gravitational formation of dark halos and the thermodynamic and chemical evolution of the gas clouds compromises analytic estimates of the critical H2 fraction. Dynamical heating from mass accretion and mergers opposes relatively inefficient cooling by molecular hydrogen, delaying the production of star-forming clouds in rapidly growing halos. We also investigate the effect of photodissociating ultraviolet radiation on the formation of primordial gas clouds. We consider two extreme cases, first by including a uniform radiation field in the optically thin limit and second by accounting for the maximum effect of gas self-shielding in virialized regions. For radiation with Lyman-Werner band flux J>10-23 ergs s-1 cm-2 Hz-1 sr-1, hydrogen

  4. Predictors of Primary Breast Abscesses and Recurrence

    PubMed Central

    Bharat, Ankit; Gao, Feng; Aft, Rebecca L.; Gillanders, William E.; Eberlein, Timothy J.

    2014-01-01

    Background We investigated the patients and microbiological risk factors that predispose to the development of primary breast abscesses and subsequent recurrence. Methods Patients with a primary breast abscess requiring surgical therapy between January 1, 2000 and December 31, 2006 were reviewed. Recurrent breast abscess was defined by the need for repeated drainage within 6 months. Patient characteristics were compared to the general population and between groups. Results A total of 89 patients with a primary breast abscess were identified; 12 (14%) were lactational and 77 (86%) were nonlactational. None of the lactational abscesses recurred, whereas 43 (57%) of the nonlactational abscesses did so (P < 0.01). Compared to the general population, patients with a primary breast abscess were predominantly African American (64% vs. 12%), had higher rates of obesity (body mass index > 30: 43% vs. 22%), and were tobacco smokers (45% vs, 23%) (P < 0.01 for all). The only factor significantly associated with recurrence in the multivariate logistic regression analysis was tobacco smoking (P = 0.003). Compared to patients who did not have a recurrence, patients with recurrent breast abscesses had a higher incidence of mixed bacteria (20.5% vs. 8.9%), anaerobes (4.5% vs. 0%), and Proteus (9.1% vs. 4.4%) but lower incidence of Staphylococcus (4.6% vs. 24.4%) (P < 0.05 for each). Conclusions Risk factors for developing a primary breast abscess include African American race, obesity, and tobacco smoking. Patients with recurrent breast abscesses are more likely to be smokers and have mixed bacterial and anaerobic infections. Broader antibiotic coverage should be considered for the higher risk groups. PMID:19669231

  5. [Splenic abscesses: From diagnosis to therapy].

    PubMed

    Davido, B; Dinh, A; Rouveix, E; Crenn, P; Hanslik, T; Salomon, J

    2017-09-01

    Splenic abscess is septic collection which occurs after haematogenous spread or local dissemination. Splenic abscess is an uncommon and rare condition, more frequently affecting male and immunocompromised patients. There are no guidelines regarding its diagnosis and management. Computed tomography (CT) scan is highly sensitive and specific (95% and 92%, respectively) in the diagnosis of splenic abscess. Diagnosis is based on blood cultures which are positive in 24 to 80% of cases. Bacterial growth culture of abscess after drainage is more efficient (50-80%) and can be performed after surgery or percutaneous drainage under imaging, including CT scan. Microorganisms involved are frequently enterobacteriaceae, gram-positive cocci and anaerobes. This particular ecology leads to an empiric broad-spectrum antibiotic therapy, with a variable duration, from 10days to more than one month. Management remains very close to the one applied in case of liver abscesses. The role of splenectomy in the prevention of recurrence remains controversial. We reviewed the literature regarding splenic abscesses, from diagnosis to therapy. Copyright © 2017 Société Nationale Française de Médecine Interne (SNFMI). Published by Elsevier SAS. All rights reserved.

  6. Breast abscess: evidence based management recommendations.

    PubMed

    Lam, Elaine; Chan, Tiffany; Wiseman, Sam M

    2014-07-01

    Literature review was carried out and studies reporting on treatment of breast abscesses were critically appraised for quality and their level of evidence using the Strength of Recommendation Taxonomy guidelines, and key recommendations were summarized. Needle aspiration either with or without ultrasound guidance should be employed as first line treatment of breast abscesses. This approach has the potential benefits of: superior cosmesis, shorter healing time, and avoidance of general anaesthesia. Multiple aspiration sessions may be required for cure. Ultrasound-guided percutaneous catheter placement may be considered as an alternative approach for treatment of larger abscesses (>3 cm). Surgical incision and drainage should be considered for first line therapy in large (>5 cm), multiloculated, or long standing abscesses, or if percutaneous drainage is unsuccessful. All patients should be treated concurrently with antibiotics. Patients with recurrent subareolar abscesses and fistulas should be referred for consideration of surgical treatment.

  7. [Abscess of the spleen].

    PubMed

    Grubor, Nikica; Colović, Radoje; Colović, Natasa; Radak, Vladimir

    2005-01-01

    Splenic abscess is a rare disease but with increasing frequency. The authors present 9 patients with splenic abscess treated at the Institute of Digestive System Diseases, Clinical Centre of Serbia, in a period from January 1, 1986 to May 15, 2004. Splenic abscess was the complication of septic endocarditis in 4, trauma in 2, dental infection in 1, while in 2 cases it was the complication of chemotherapy in myeloproliferative disorders. All 9 patients had fever, 7 - abdominal pain, 4 - left shoulder pain, and 1 patient had nausea and vomiting. Higher white blood count was found in 6 patients, pleural effusion in 4, elevated left hemidiaphragm in 1 and basal pneumonia in 1 patient as well. Ultrasonography and CT were the most reliable diagnostic procedures. CT was superior in diagnosis of multiple small abscesses. Culture of the pus recovered the Enterococcus in 3 cases, Streptococcus a hemolyticus in 1, Staphylococcus epidermidis and Candida albicans in 1, Staphylococcus aureus, E. Coil and Candida albicans in 1, Staphylococcus aureus i Salmonella enteritidis in 1 case. Eight patients underwent splenectomy and 1 was cured by combined antibiotics in high doses. One patient died postoperatively due to septic endocarditis that had been present before surgery. The authors believe that splenectomy and antibiotics administered according to drug susceptibility test as well as management of underlying disease are the method of choice for splenic abscess treatment. Conservative antibiotic treatment is indicated in selected cases only.

  8. Traumatic lenticular abscess: clinical description and outcome.

    PubMed

    Rajaraman, Revathi; Lalitha, Prajna; Raghavan, Anita; Palanisamy, Manikandan; Prajna, Namperumalsamy Venkatesh

    2007-07-01

    To analyze cases with posttraumatic lenticular abscess and study the etiology, clinical presentation, management, and outcome. Retrospective case series. Seventeen eyes of 17 patients with traumatic lenticular abscesses were managed with extracapsular cataract extraction after aspirating the abscess. The mean age of the patients was 40.3 years, and males constituted 82%. The mean time to presentation after injury was 14.35 days (range, one to 60 days), and the patients had a mean follow-up of 125.94 days (range, 21 to 300 days). Culture of the lenticular abscess revealed bacterial growth in eight cases (47%) and fungi in four cases (23.5%). In five (29.4%) cases, culture was negative. Staphylococcus epidermidis grew in seven cases (41%). Thirteen eyes (77%) had best-corrected visual acuity better than 20/120. Surgical removal of the abscess, with systemic and local antimicrobial treatment is effective in cases of posttraumatic intralenticular abscess.

  9. Pyogenic brain abscess, a 15 year survey

    PubMed Central

    2012-01-01

    Background Brain abscess is a potentially fatal disease. This study assesses clinical aspects of brain abscess in a large hospital cohort. Methods Retrospective review of adult patients with pyogenic brain abscess at Rigshospitalet University Hospital, Denmark between 1994 and 2009. Prognostic factors associated with Glasgow Outcome Score (GOS) (death, severe disability or vegetative state) were assessed by logistic regression. Results 102 patients were included. On admission, only 20% of patients had a triad of fever, headache and nausea, 39% had no fever, 26% had normal CRP and 49% had no leucocytosis. Median delay from symptom onset to antibiotic treatment was 7 days (range 0–97 days). Source of infection was contiguous in 36%, haematogenous in 28%, surgical or traumatic in 9% and unknown in 27% of cases. Abscess location did not accurately predict the portal of entry. 67% were treated by burr hole aspiration, 20% by craniotomy and 13% by antibiotics alone. Median duration of antibiotic treatment was 62 days. No cases of recurrent abscess were observed. At discharge 23% had GOS ≤3. The 1-, 3- and 12-month mortality was 11%, 17% and 19%. Adverse outcome was associated with a low GCS at admission, presence of comorbidities and intraventricular rupture of abscess. Conclusions The clinical signs of brain abscess are unspecific, many patients presented without clear signs of infection and diagnosis and treatment were often delayed. Decreased GCS, presence of comorbidities and intraventricular rupture of brain abscess were associated with poor outcome. Brain abscess remains associated with considerable morbidity and mortality. PMID:23193986

  10. Enterobius vermicularis in tubo-ovarian abscess: A rare and interesting incidental finding - A case Report.

    PubMed

    Saleem, Faryal; Malik, Faizan; Fatima, Saira

    2017-04-01

    Enterobius vermicularis is a common intestinal nematode; however, rare extraintestinal Enterobius infections have been reported from different parts of the world. Here, we present a case of tubo-ovarian abscess in an otherwise healthy young sexually active female with no known comorbids with history of on and off lower abdominal pain for one year and high grade fever for one month. On the basis of further workup and radiological evaluation, a preoperative diagnosis of right sided tubo-ovarian abscess was made and salpingo-oophorectomy was performed laproscopically in July 2015. Histopathology of the resected tissue revealed necrosis and in one area Enterobius vermicularis was identified surrounded by neutrophils and eosinophil rich abscess. A final diagnosis of severe acute and chronic salpingo-oophoritis with abscess formation, secondary to Enterobius vermicularis was made. Signs and symptoms of parasitic involvement in tubo-ovarian abscesses are not much different than usual presentations of pelvic inflammatory diseases and identification of a parasite in a tubo-ovarian tissue sample is a rare clinical finding. A high index of suspicion on the part of histopathologist as well as clinician is important for timely diagnosis and effective management of such cases.

  11. Microbiology and Treatment of Acute Apical Abscesses

    PubMed Central

    Rôças, Isabela N.

    2013-01-01

    SUMMARY Acute apical abscess is the most common form of dental abscess and is caused by infection of the root canal of the tooth. It is usually localized intraorally, but in some cases the apical abscess may spread and result in severe complications or even mortality. The reasons why dental root canal infections can become symptomatic and evolve to severe spreading and sometimes life-threatening abscesses remain elusive. Studies using culture and advanced molecular microbiology methods for microbial identification in apical abscesses have demonstrated a multispecies community conspicuously dominated by anaerobic bacteria. Species/phylotypes commonly found in these infections belong to the genera Fusobacterium, Parvimonas, Prevotella, Porphyromonas, Dialister, Streptococcus, and Treponema. Advances in DNA sequencing technologies and computational biology have substantially enhanced the knowledge of the microbiota associated with acute apical abscesses and shed some light on the etiopathogeny of this disease. Species richness and abundance and the resulting network of interactions among community members may affect the collective pathogenicity and contribute to the development of acute infections. Disease modifiers, including transient or permanent host-related factors, may also influence the development and severity of acute abscesses. This review focuses on the current evidence about the etiology and treatment of acute apical abscesses and how the process is influenced by host-related factors and proposes future directions in research, diagnosis, and therapeutic approaches to deal with this disease. PMID:23554416

  12. /sup 111/In desferal: a new radiopharmaceutical for abscess detection. [Distribution studies in normal and abscess-bearing laboratory animals

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Chandra, R.; Pierno, C.; Braunstein, P.

    1978-09-01

    Desferal was labeled with /sup 111/In and its distribution was studied in normal mice, rabbits bearing turpentine-induced abscesses, and rats bearing Staphyloccus aureus-induced abscesses. The results indicate that /sup 111/In Desferal may be used in abscess detection and localization.

  13. Actinotignum schaalii subcutaneous abscesses in a patient with hidradenitis suppurativa: Case report and literature review.

    PubMed

    Maraki, Sofia; Evangelou, George; Stafylaki, Dimitra; Scoulica, Efstathia

    2017-02-01

    Actinotignum schaalii (formerly Actinobaculum schaalii) is a Gram-positive, facultative anaerobic rod that is typically involved in urinary tract infections in elderly patients or those with underlying urological pathologies. In contrast, abscess formation caused by A. schaalii is very rare. We present a case of multiple abscesses in the perineal area in a young patient with hidradenitis suppurativa associated with A. schaalii and Prevotella melaninogenica and review the relevant literature on the topic. Copyright © 2016 Elsevier Ltd. All rights reserved.

  14. Holospinal epidural abscesses - Institutional experience.

    PubMed

    Bridges, Kelly J; Than, Khoi D

    2018-02-01

    The authors present a holospinal epidural abscesses (HEA) case series and a single institution's experience with varied surgical approaches and outcomes. Medical records were queried and reviewed (6 years) for patients with a spinal abscess diagnosis; HEA were selected. Medical history, comorbidities, blood and epidural pathogens, presentation symptoms, abscess location, presence of mass effect, surgical procedures, treatment regimens, and neurological outcomes were collected. Eight patients with HEA were treated; all underwent surgery. In the index procedure, one (12.5%) underwent laminectomy of the entire spinal column, four (50%) focal laminectomies at the area of mass effect, and three (37.5%) skip laminectomies. Of the four patients who initially had focal laminectomies, three (75%) required additional operations for abscess evacuation in other spine regions. Average number of laminectomies per patient was 8.6. Neurologically, 50% of patients improved, 37.5% remained stable, and 12.5% worsened. There was no difference in outcome between patients who underwent skip versus panspinal laminectomies. No differences in outcomes were noted in timing from presentation to surgery (median 5.3 h), location of mass effect, dorsal versus ventral abscesses, or initial symptoms. Of the four patients who had cervical laminectomy without fusion, two developed post-laminectomy kyphosis requiring fusion. Cervical instability occurred in half the patients who underwent cervical laminectomies without fusion, and there were no adverse outcomes in the patients who were fused in the setting of infection. For lower cervical abscess, upper thoracic laminectomy with catheter irrigation may be sufficient for decompression, minimizing risk of future instability. Copyright © 2017 Elsevier Ltd. All rights reserved.

  15. Modeling of Hydrate Formation Mode in Raw Natural Gas Air Coolers

    NASA Astrophysics Data System (ADS)

    Scherbinin, S. V.; Prakhova, M. Yu; Krasnov, A. N.; Khoroshavina, E. A.

    2018-05-01

    Air cooling units (ACU) are used at all the gas fields for cooling natural gas after compressing. When using ACUs on raw (wet) gas in a low temperature condition, there is a danger of hydrate plug formation in the heat exchanging tubes of the ACU. To predict possible hydrate formation, a mathematical model of the air cooler thermal behavior used in the control system shall adequately calculate not only gas temperature at the cooler's outlet, but also a dew point value, a temperature at which condensation, as well as the gas hydrate formation point, onsets. This paper proposes a mathematical model allowing one to determine the pressure in the air cooler which makes hydrate formation for a given gas composition possible.

  16. [Lung abscess: changes in treatment?].

    PubMed

    Clottu, E; Nicod, L P

    2015-11-18

    Lung abscess occurs in very pleomorphic according to germs initially involved. The mechanism commonly found is an aspiration of the oropharyngeal flora in patients with disorders of consciousness or swallowing. The infection is polymicrobial, with presence of anaerobic germs in 2/3 of the cases. The support consists of a prolonged antibiotic treatment, as well as anaerobic until resolution or stability of the radiological image. In case of prolonged toxic state, drainage of the abscess is to be discussed especially if there is no airways drainage. Surgical sanctions is rarely needed regardless of the size of the abscess, unless underlying carcinoma is present.

  17. Brain abscess in children.

    PubMed

    Atiq, Mehnaz; Ahmed, Umair Syed; Allana, Salman Saleem; Chishti, Khalid N

    2006-05-01

    Brain abscess is a serious life-threatening complication of several diseases. The objective of this study was to look at the clinical profile of patients, predisposing conditions, microbiology and outcome of children suffering from brain abscess. Thirty children aged less than 15 years were reviewed. There were 15 males and 15 females. The mean age of presentation was 5.6+/-4.4 years. The duration of illness at the time of admission was 17.6+/-24.6 days. Typically patients presented with fever, vomiting, headache and seizures. The predisposing conditions found were cyanotic congenital heart disease in 11 (37%) of children, meningitis in 6 (20%), septicemia in 7 (23%) and no underlying cause was found in 5 (17%) children. The most common microbe in children with cyanotic congenital heart disease was of the Streptococcus milleri group (52%). Computerized tomography confirmed the diagnosis and the most common location of the abscess was the parietal lobe of the cerebral hemisphere. All abscesses were large, more than 2 cm in diameter and were aspirated surgically. Excision was performed in 6 children. Five children expired, one due to a intracranial bleeding and the others due to severe cerebral edema and tentorial herniation. Complications were seen in 20 children and 16 had sequelae, hemiparesis in 11 and seizure disorder in 5. Brain abscess is a serious infection with poor outcome if diagnosed late. Delayed surgical drainage has high morbidity and mortality. The threshold for diagnosis should be low, particularly in children with a predisposing condition like cyanotic congenital heart disease.

  18. Liver abscess that responded well to pazufloxacin therapy.

    PubMed

    Hamada, Yukihiro; Imaizumi, Hiroshi; Kobayashi, Masahiro; Sunakawa, Keisuke; Saigenji, Katsunori; Yago, Kazuo

    2006-02-01

    Pazufloxacin (PZFX), an injectable, new quinolone antibacterial drug, has strong antibacterial activity against gram-negative bacteria (which often account for liver abscess) and transfers well to liver tissue, gallbladder tissue, and bile. Therefore, it is probable that PZFX could be extremely useful for patients with liver abscess. Here, we report two cases of liver abscess that resolved with PZFX. PZFX was intravenously administered to patients who had undergone abscess drainage, at a dose level of 500 mg x 2/day. PZFX therapy thereby allowed the patients to shorten the period of hospital stay. Liver abscess has been considered as a poor-prognosis disorder, due to delay in diagnosis of the disorder and the high incidence of septicemia that subsequently occurs. However, now, appropriate antibacterial drug therapy in combination with abscess drainage successfully allows excellent prognosis of patients with liver abscess without the reduction in the activities of daily living (ADL) that accompanies hepatic artery injection.

  19. Spinal epidural abscess: Report on 27 cases

    PubMed Central

    Khursheed, Nayil; Dar, Sultan; Ramzan, Altaf; Fomda, Bashir; Humam, Nisar; Abrar, Wani; Singh, Sarbjit; Sajad, Arif; Mahek, Masood; Yawar, Shoaib

    2017-01-01

    Background: Spinal epidural abscess, although an uncommon disease, often correlates with a high morbidity owing to significant delay in diagnosis. Methods: In a prospective 5-year study, the clinical and magnetic resonance (MR) findings, treatment protocols, microbiology, and neurological outcomes were analyzed for 27 patients with spinal epidural abscess. Results: Patients were typically middle-aged with underlying diabetes and presented with lumbar abscesses. Those undergoing surgical intervention >36 h after the onset of symptoms had poor neurological outcomes. Conclusion: Early recognition and timely evacuation of spinal abscesses minimized neurological morbidity and potential mortality. PMID:29026676

  20. Spinal epidural abscess: Report on 27 cases.

    PubMed

    Khursheed, Nayil; Dar, Sultan; Ramzan, Altaf; Fomda, Bashir; Humam, Nisar; Abrar, Wani; Singh, Sarbjit; Sajad, Arif; Mahek, Masood; Yawar, Shoaib

    2017-01-01

    Spinal epidural abscess, although an uncommon disease, often correlates with a high morbidity owing to significant delay in diagnosis. In a prospective 5-year study, the clinical and magnetic resonance (MR) findings, treatment protocols, microbiology, and neurological outcomes were analyzed for 27 patients with spinal epidural abscess. Patients were typically middle-aged with underlying diabetes and presented with lumbar abscesses. Those undergoing surgical intervention >36 h after the onset of symptoms had poor neurological outcomes. Early recognition and timely evacuation of spinal abscesses minimized neurological morbidity and potential mortality.

  1. Primary lung abscess caused by Staphylococcus lugdunensis.

    PubMed

    Chou, Deng-Wei; Lee, Chao-Tai

    2017-11-01

    Staphylococcus lugdunensis, a strain of coagulase-negative staphylococci, is part of the normal flora of human skin but can cause multiple infections at various sites. This microorganism has emerged as a major human pathogen. However, no study has reported primary lung abscess caused by S. lugdunensis. A 54-year-old alcoholic man without relevant past medical history was admitted because of primary lung abscesses. Empirical amoxicillin/clavulanate therapy was initially administered; however, the patient had persistent pleuritic chest pain and fever. He subsequently underwent resection of the lung abscess and removal of exudative pleural effusion on the fourth hospital day. Histopathologic examination confirmed the diagnosis of lung abscess, and colonies of gram-positive bacteria were identified. The culture specimen from the abscess was positive for S. lugdunensis, which was susceptible to amoxicillin/clavulanate, cefazolin, ciprofloxacin, clindamycin, erythromycin, oxacillin, teicoplanin, tetracycline, and vancomycin. Following resection and 3 weeks of amoxicillin/clavulanate therapy, the patient eventually recovered well without relapse. This case report is the first to describe S. lugdunensis as a cause of primary lung abscess; this microorganism should be considered a potential monomicrobial pathogen in primary lung abscess. Copyright © 2017 Japanese Society of Chemotherapy and The Japanese Association for Infectious Diseases. Published by Elsevier Ltd. All rights reserved.

  2. Subperiosteal orbital abscess: volumetric criteria for surgical drainage.

    PubMed

    Tabarino, Florian; Elmaleh-Bergès, Monique; Quesnel, Stéphanie; Lorrot, Mathie; Van Den Abbeele, Thierry; Teissier, Natacha

    2015-02-01

    To investigate predictive factors of surgical management of subperiosteal orbital abscess in children. A retrospective monocentric study was conducted between 2000 and 2011 with children hospitalized for acute pediatric orbital cellulitis (APOC). Clinical, biological and radiological data as well as medical and surgical management were collected and analyzed. All patients received intravenous antibiotics and underwent a CT-scan. Orbit and subperiosteal intraorbital abscess dimensions were measured on axial and coronal planes and the abscess volume was calculated using a spheroid model. Eighty-three children with APOC (mean age: 4.5 years) were included, 53 were boys (63.9%). Thirty-two children (38.6%) presented with a subperiosteal orbital abscess. Mean abscess volume was 570mm(3) and mean exophthalmos was 4.7mm. Twenty patients were treated surgically, 11 of which by an endoscopic approach. A positive correlation was observed between the volume of the abscess or exophthalmos and surgical drainage: 57.9% of patients underwent surgery when exophthalmos was >4mm, 29.4% between 2 and 4mm, and none when <2mm. All patients with an abscess volume >500mm(3) or >5% of orbital volume were operated on whereas only 30% or 39% of patients, respectively, in case of smaller volumes (P<0.05). Surgery for subperiosteal orbital abscess is usually performed in case of visual complications or unfavorable medical outcome. The importance of the exophthalmos and the volume of the abscess measured on the CT-scan are predictive factors of surgery in children with subperiosteal orbital abscess without visual complications. Copyright © 2014 Elsevier Ireland Ltd. All rights reserved.

  3. Klebsiella pneumoniae liver abscess in diabetic patients: association of glycemic control with the clinical characteristics

    PubMed Central

    2013-01-01

    Background Klebsiella pneumoniae liver abscess (KPLA) has been reported with increasing frequency in East Asian countries in the past 3 decades, especially in Taiwan and Korea. Diabetes is a well-known risk factor for KPLA and highly associated with septic metastatic complications from KPLA. We investigated the association of glycemic control in diabetic patients with the clinical characteristics of KPLA in Taiwan. Methods Adult diabetic patients with KPLA were identified retrospectively in a medical center from January 2007 to January 2012. Clinical characteristics were compared among patients with different levels of current hemoglobin A1c (HbA1c). Risk factors for metastatic infection from KPLA were analyzed. Results Patients with uncontrolled glycemia (HbA1c ≥ 7%) were significantly younger than those with controlled glycemia (HbA1c < 7%). Patients with uncontrolled glycemia had the trend to have a higher rate of gas-forming liver abscess, cryptogenic liver abscess, and metastatic infection than those with controlled glycemia. Cryptogenic liver abscess and metastatic infection were more common in the poor glycemic control group (HbA1c value >; 10%) after adjustment with age. HbA1c level and abscess < 5 cm were independent risk factors for metastatic complications from KPLA. Conclusions Glycemic control in diabetic patients played an essential role in the clinical characteristics of KPLA, especially in metastatic complications from KPLA. PMID:23363608

  4. Lung abscess caused by Mycoplasma pneumoniae.

    PubMed

    Omae, Takashi; Matsubayashi, Tadashi

    2015-08-01

    A 10-year-old boy with West syndrome was referred to hospital because of high fever and cough. Chest X-ray and computed tomography showed consolidation with an abscess in the right upper lobe. Laboratory data indicated cytokine storm. Various antibacterial agents and additional corticosteroid were unable to control the hypercytokinemia, which was suppressed after cyclosporine A was started. The lung abscess remained, however, and right upper lobectomy was performed. Culture from the abscess showed no growth, while polymerase chain reaction assay indicated Mycoplasma pneumoniae DNA. Serum passive agglutinin titer for M. pneumoniae was significantly elevated in the convalescent phase. These findings are strong evidence that the lung abscess was caused by M. pneumoniae infection. © 2015 Japan Pediatric Society.

  5. Uvula Abscess in a Newborn Infant.

    PubMed

    Tuncer, Erkun; Ors, Rahmi

    2018-05-01

    Abscesses can be found in several places in the oral cavity, most commonly occurring in peritonsillar and periodontal regions. In this report, the authors described a uvula abscess in a 1-month-old term newborn who was brought to the pediatric outpatient clinic with the complaints of difficulty in sucking-swallowing and refusal to suck at the breast. To the best of the authors' knowledge this is the first report of a uvula abscess in the literature.

  6. [Brain abscess--modern diagnostics and therapeutic treatment].

    PubMed

    Kalinowska-Nowak, Anna; Garlicki, Aleksander; Bociaga-Jasik, Monika

    2009-01-01

    Brain abscess is one of the most serious diseases of the central nervous system. This condition is more common among men--twice to three times, and morbidity rate is highest in fourth decade of the life. Etiologic agents of brain abscess are bacteria, fungus, protozoa and parasites. The development of the brain abscess can resulted from the spread of infection from local sites or bloodborne from distal sites. In 10-15% of cases multiple abscesses develop. Headache is the most common syndrome. The radiologic tests: computed tomography or magnetic resonance are tests of choice in diagnosis and monitoring of treatment. Treatment of brains abscesses required cooperation of different specialists: infectious diseases, neuroradiologist, neurologists and neurosurgeon. Decision about therapeutic methods depends on number, size and localization of lesions, and patient's condition. In conservative treatment empiric antibiotic therapy and supportive treatment are used. Actually two methods of surgical treatment are used: CT- guided stereotactic aspiration and incision of the brain abscess by craniotomy. Actually mortality rate is 6 to 24%. Among 30-56% patients permanent neurological complications are reported.

  7. The periodontal abscess: a review.

    PubMed

    Herrera, D; Roldán, S; Sanz, M

    2000-06-01

    The periodontal abscess is a frequent periodontal condition in which periodontal tissues may be rapidly destroyed. Its importance is based on the possible need of urgent care, the affectation of tooth prognosis, and the possibility of infection spreading. There is scant information in the scientific literature regarding this condition and most of it has been published as case reports and text books, where conclusions are not evidence-based, but rather empirical observations made by recognised clinicians. The aim of this review was to critically analyse all available information on this subject in the dental and medical literature, including information on its prevalence, proposed etiologies and pathogenesis, diagnosis, microbiology and treatment alternatives. The periodontal abscess is the 3rd most frequent dental emergency, and it is specially prevalent among untreated periodontal patients and periodontal patients during maintenance. Different etiologies have been proposed, and 2 main groups can be distinguished, depending on its relation with periodontal pockets. In the case of a periodontitis-related abscess, the condition may appear as an exacerbation of a non-treated periodontitis or during the course of periodontal therapy. In non-periodontitis related abscesses, impaction of foreign objects, and radicular abnormalities are the 2 main causes. The abscess microflora seems to be similar to that of adult periodontitis, and it is dominated by gram-negative anaerobic rods, including well-known periodontal pathogens. Complications and consequences include tooth loss and the spread of the infection to other body sites. Diagnosis and treatment is mainly based on empiricism, since evidence-based data are not available. The role of systemic antibiotics, in the treatment of periodontal abscesses, is especially controversial.

  8. Postoperative antibiotic use and the incidence of intra-abdominal abscess in the setting of suppurative appendicitis: a retrospective analysis.

    PubMed

    Bae, Esther; Dehal, Ahmed; Franz, Vanessa; Joannides, Michael; Sakis, Nicholas; Scurlock, Joshua; Nguyen, Patrick; Hussain, Farabi

    2016-12-01

    Although guidelines exist for postoperative antibiotic use in acute appendicitis that is perforated, gangrenous, or simple/uncomplicated, there are less data about its use in suppurative appendicitis. Here, we targeted this subgroup of patients to determine whether postoperative antibiotic administration affects incidence of intra-abdominal abscess formation. We retrospectively examined 1,192 patients who underwent laparoscopic appendectomy for acute appendicitis at Kaiser Permanente Fontana Hospital between August 2010 and August 2013. Suppurative appendicitis was described for 143 (12%) patients. Fifty-two patients received postoperative antibiotics for at least 1 week on discharge home, 91 did not. Of 143 patients with suppurative appendicitis, 1 (1.9%) who received postoperative antibiotics came back with an intra-abdominal abscess within 1 month. Of the 91 patients in the no antibiotic group, 1 (1.1%) came back with an intra-abdominal abscess. The administration of postoperative antibiotic in the setting of suppurative appendicitis has no effect on the rate of intra-abdominal abscess formation. Routine postoperative antibiotics may not be necessary in this patient population, and more evidence is needed to justify its use. Copyright © 2016 Elsevier Inc. All rights reserved.

  9. Approaches to subperiosteal orbital abscesses.

    PubMed

    Ketenci, Ibrahim; Unlü, Yaşar; Vural, Alperen; Doğan, Hakkı; Sahin, Mehmet Ilhan; Tuncer, Erkun

    2013-03-01

    The purpose of this paper is to evaluate the epidemiology, clinical features, management and complications of subperiosteal orbital abscesses (SPOA)-a serious complication of rhinosinusitis. Retrospective data of 36 patients with SPOA secondary to acute rhinosinusitis from January 1998 to December 2011 were evaluated. Patients were analyzed in terms of age, gender, clinical features, CT findings, surgical procedures, microbiology, and complications. Twenty-three males and 13 females aged from 3 to 76 were evaluated. Nine patients-seven of which were under the age of 10-with small medial SPOA were treated only with medical management. Of the 13 with medial SPOA, transnasal endoscopic approach was performed for 10 and external approach for 3 to drain the abscess. As for the 12 patients with superior SPOA, 8 were treated via combined approach and 4 via external approach. The most common microorganisms were streptococci in children and anaerobes in adults. Total loss of vision developed in two adults with diabetes mellitus (DM). One patient with superior SPOA died due to frontal lobe abscess. Young children with small medial SPOA without significant ocular signs may successfully be managed medically. Surgical drainage is indicated for nonmedial abscesses, large medial abscesses with severe visual loss and with insufficient response to medical management. The risk of blindness from SPOA is higher in patients with DM.

  10. [Complex treatment of patients with cholangiogenic hepatic abscess].

    PubMed

    Nychytaĭlo, M Iu; Skums, A V; Medvets'kyĭ, Ie B; Ohorodnyk, P V; Mashkovs'kyĭ, H Iu; Shkarban, V P; Shkarban, P O; Farzolakh, Mekhraban Jafarlu

    2005-07-01

    Results of treatment of 47 patients with cholangiogenic hepatic abscess were analyzed. Clinical, laboratory and special methods of investigation were applied for diagnosis. The authors consider ultrasound investigation (USI), computer tomography and the abscess puncture under the USI control with subsequent cytological and bacterial control the decisive methods in diagnosis of hepatic abscess. In complex of treatment of patients miniinvasive technologies were applied--the abscess puncture, its cavity drainage under USI control transcutaneus transhepatic cholangiostomy, endoscopic papillosphincterotomy with lithotripsy and nasobiliary drainage, according to indications. Efficacy of the abscess cavity sanation, using miramistinum and decasan, was proved. In general therapy the directed transport of medicines was applied.

  11. A study of the microbiology of breast abscess in a teaching hospital in Kuwait.

    PubMed

    Al Benwan, Khalifa; Al Mulla, Ahmed; Rotimi, Vincent O

    2011-01-01

    To determine the microbiological profile of breast abscess and assess the antibiotic susceptibility of the causative agents. Data obtained from cases of breast abscess over a period of 3.5 years, June 2006 to December 2009, were retrospectively analyzed. Specimens were cultured using optimal aerobic and anaerobic microbiological techniques. The antibiotic susceptibility test was carried out using the methods recommended by the Clinical and Laboratory Standards Institute. One specimen per patient was analyzed. Of the 114 patients, 107 (93.8%) non-lactating and 7 (6.1%) lactating women were diagnosed with breast abscess during this period. Of the 114 specimens, 83 (73%) yielded bacterial growth. Of these, 115 pathogens were isolated with an average of 1.4 pathogens per abscess. Eighteen (22%) of the 83 specimens yielded mixed bacterial growth. There were more Gram-positive pathogens (60, 52%) than anaerobes (32, 28%) and Gram-negative pathogens (22, 19%). The predominant organisms were methicillin-susceptible Staphylococcus aureus (37, 32%), methicillin-resistant S. aureus (MRSA; 11, 10%), Bacteroides spp. (16, 14%), anaerobic streptococci (14, 12%) and Pseudomonas aeruginosa (9, 8%). Of the 48 S. aureus, MRSA accounted for 11 (23%). All MRSA isolates were susceptible to trimethoprim-sulfamethoxazole and vancomycin. S. aureus was the most common pathogenic organism isolated in breast abscesses at Al-Amiri Hospital, Kuwait, of which 23% were MRSA. Nearly a third of the cases were caused by anaerobes, particularly B. fragilis. The data present a basis for the formation of empirical antimicrobial therapeutic policy in the management of breast abscess. Copyright © 2011 S. Karger AG, Basel.

  12. Dimension of subperiosteal orbital abscess as an indication for surgical management in children.

    PubMed

    Gavriel, Haim; Yeheskeli, Eyal; Aviram, Eliad; Yehoshua, Lior; Eviatar, Ephraim

    2011-11-01

    Eyelid edema in children is one of the signs of orbital complications secondary to acute rhinosinusitis, and identifying abscess formation is crucial for management decision. The objective of this study is to determine whether there are different computed tomography scan abscess dimensions and volumes in children requiring medical versus surgical management for subperiosteal orbital abscess (SPOA). Case series with chart review. The study was conducted at Assaf Harofeh Medical Center. Clinical and radiological parameters of 95 children admitted with eyelid edema between January 2005 and December 2007 were studied. Of 95 cases of orbital cellulitis, a total of 48 children with sinogenic orbital complications with a mean (SD) age of 4.03 (3.46) years were included. No significant difference was found between the surgically and medically treated SPOA groups regarding the use of preadmission antibiotic and clinical presentation. Statistically significant larger abscesses in the surgically treated group were noted (mean volume 1.389 vs 0.486 mL in the conservatively treated group; P = .013) and a longer mean anterior-posterior and medial-lateral dimension (P = .001 and .017, respectively). Children presenting with significant or progressing ocular findings or failure to improve after 48 hours of medical therapy, together with an abscess volume of more than 0.5 mL, a length greater than 17 mm, and a width greater than 4.5 mm, should be strongly considered to have surgical drainage.

  13. Peritonsillar abscess: clinical aspects of microbiology, risk factors, and the association with parapharyngeal abscess.

    PubMed

    Klug, Tejs Ehlers

    2017-03-01

    transportation of appropriate specimens, choice of methodology for detection and quantification of microorganisms, current or recent antibiotic treatment of patients, potential shift in significant pathogens during the course of infection, and factors associated with increased risk of PTA development.  The trend towards de-escalated surgical intervention and increasing reliance on antibiotic treatment, require studies defining the significant pathogens in PTA in order to determine optimal antibiotic regimens. Complications secondary to PTA may be avoided or better controlled with improved knowledge concerning the significant pathogens in PTA. Furthermore, identification of pathogens other than GAS, may lead the way for earlier bacterial diagnosis and timely intervention before abscess formation in sore throat patients. The identification and quantification of risk factors for PTA development constitutes another approach to reduce the incidence of PTA. As clinicians, we noticed that FN was recovered from PTA patients with increasing frequency and that patients infected with Fusobacterium necrophorum (FN) seemed to be more severely affected than patients infected with other bacteria. Furthermore, we occationally observed concomitant PPA in addition to a PTA, which made us hypothesize that PPA and PTA is often closely related and may share significant pathogens. Hence, our aims were: 1. To explore the microbiology of PTA with a special attention to Fusobacterium necrophorum (FN). 2. To elucidate whether smoking, age, gender, and seasons are risk factors for the development of PTA. 3. To characterize patients with PPA, explore the relationship between PPA and PTA, identify the pathogens associated with PPA, and review our management of PPA. In a retrospective study on all 847 PTA patients admitted to the ENT department at Aarhus University Hospital (AUH) from 2001 to 2006, we found that FN was the most prevalent (23%) bacterial strain in pus specimens. FN-positive patients

  14. New hydrate formation methods in a liquid-gas medium.

    PubMed

    Chernov, A A; Pil'nik, A A; Elistratov, D S; Mezentsev, I V; Meleshkin, A V; Bartashevich, M V; Vlasenko, M G

    2017-01-18

    Conceptually new methods of hydrate formation are proposed. The first one is based on the shock wave impact on a water-bubble medium. It is shown that the hydrate formation rate in this process is typically very high. A gas hydrate of carbon dioxide was produced. The process was experimentally studied using various initial conditions, as well as different external action magnitudes. The obtained experimental data are in good agreement with the proposed model. Other methods are based on the process of boiling liquefied gas in an enclosed volume of water (explosive boiling of a hydrating agent and the organization of cyclic boiling-condensation process). The key features of the methods are the high hydrate formation rate combined with a comparatively low power consumption leading to a great expected efficiency of the technologies based on them. The set of experiments was carried out. Gas hydrates of refrigerant R134a, carbon dioxide and propane were produced. The investigation of decomposition of a generated gas hydrate sample was made. The criteria of intensification of the hydrate formation process are formulated.

  15. New hydrate formation methods in a liquid-gas medium

    PubMed Central

    Chernov, A. A.; Pil’nik, A. A.; Elistratov, D. S.; Mezentsev, I. V.; Meleshkin, A. V.; Bartashevich, M. V.; Vlasenko, M. G.

    2017-01-01

    Conceptually new methods of hydrate formation are proposed. The first one is based on the shock wave impact on a water-bubble medium. It is shown that the hydrate formation rate in this process is typically very high. A gas hydrate of carbon dioxide was produced. The process was experimentally studied using various initial conditions, as well as different external action magnitudes. The obtained experimental data are in good agreement with the proposed model. Other methods are based on the process of boiling liquefied gas in an enclosed volume of water (explosive boiling of a hydrating agent and the organization of cyclic boiling-condensation process). The key features of the methods are the high hydrate formation rate combined with a comparatively low power consumption leading to a great expected efficiency of the technologies based on them. The set of experiments was carried out. Gas hydrates of refrigerant R134a, carbon dioxide and propane were produced. The investigation of decomposition of a generated gas hydrate sample was made. The criteria of intensification of the hydrate formation process are formulated. PMID:28098194

  16. New hydrate formation methods in a liquid-gas medium

    NASA Astrophysics Data System (ADS)

    Chernov, A. A.; Pil'Nik, A. A.; Elistratov, D. S.; Mezentsev, I. V.; Meleshkin, A. V.; Bartashevich, M. V.; Vlasenko, M. G.

    2017-01-01

    Conceptually new methods of hydrate formation are proposed. The first one is based on the shock wave impact on a water-bubble medium. It is shown that the hydrate formation rate in this process is typically very high. A gas hydrate of carbon dioxide was produced. The process was experimentally studied using various initial conditions, as well as different external action magnitudes. The obtained experimental data are in good agreement with the proposed model. Other methods are based on the process of boiling liquefied gas in an enclosed volume of water (explosive boiling of a hydrating agent and the organization of cyclic boiling-condensation process). The key features of the methods are the high hydrate formation rate combined with a comparatively low power consumption leading to a great expected efficiency of the technologies based on them. The set of experiments was carried out. Gas hydrates of refrigerant R134a, carbon dioxide and propane were produced. The investigation of decomposition of a generated gas hydrate sample was made. The criteria of intensification of the hydrate formation process are formulated.

  17. Imported Amoebic Liver Abscess in France

    PubMed Central

    Cordel, Hugues; Prendki, Virginie; Madec, Yoann; Houze, Sandrine; Paris, Luc; Bourée, Patrice; Caumes, Eric; Matheron, Sophie; Bouchaud, Olivier

    2013-01-01

    Background Worldwide, amoebic liver abscess (ALA) can be found in individuals in non-endemic areas, especially in foreign-born travelers. Methods We performed a retrospective analysis of ALA in patients admitted to French hospitals between 2002 and 2006. We compared imported ALA cases in European and foreign-born patients and assessed the factors associated with abscess size using a logistic regression model. Results We investigated 90 ALA cases. Patient median age was 41. The male:female ratio was 3.5∶1. We were able to determine the origin for 75 patients: 38 were European-born and 37 foreign-born. With respect to clinical characteristics, no significant difference was observed between European and foreign-born patients except a longer lag time between the return to France after traveling abroad and the onset of symptoms for foreign-born. Factors associated with an abscess size of more than 69 mm were being male (OR = 11.25, p<0.01), aged more than 41 years old (OR = 3.63, p = 0.02) and being an immigrant (OR = 11.56, p = 0.03). Percutaneous aspiration was not based on initial abscess size but was carried out significantly more often on patients who were admitted to surgical units (OR = 10, p<0.01). The median time to abscess disappearance for 24 ALA was 7.5 months. Conclusions/Significance In this study on imported ALA was one of the largest worldwide in terms of the number of cases included males, older patients and foreign-born patients presented with larger abscesses, suggesting that hormonal and immunological factors may be involved in ALA physiopathology. The long lag time before developing ALA after returning to a non-endemic area must be highlighted to clinicians so that they will consider Entamoeba histolytica as a possible pathogen of liver abscesses more often. PMID:23951372

  18. Formation of Structured Water and Gas Hydrate by the Use of Xenon Gas in Vegetable Tissue

    NASA Astrophysics Data System (ADS)

    Ando, Hiroko; Suzuki, Toru; Kawagoe, Yoshinori; Makino, Yoshio; Oshita, Seiichi

    Freezing is a valuable technique for food preservation. However, vegetables are known to be softening remarkably after freezing and thawing process. It is expected to find alternative technique instead of freezing. Recently, the application of structured water and/or gas hydrate had been attempted to prolong the preservation of vegetable. In this study, the formation process of structure water and/or gas hydrate in pure water and carrot tissue was investigated by using NMR relaxation times, T1 and T2, of which applying condition was up to 0.4MPa and 0.8MPa at 5oC. Under the pressure of 0.4MPa, no gas hydrate was appeared, however, at 0.8MPa, formation of gas hydrate was recognized in both water and carrot tissue. Once the gas hydrate formation process in carrot tissue started, T1 and T2 increased remarkably. After that, as the gas hydrate developed, then T1 and T2 turned to decrease. Since this phenomenon was not observed in pure water, it is suggested that behavior of NMR relaxation time just after the formation of gas hydrate in carrot tissue may be peculiar to compartment system such as inter and intracellular spaces.

  19. POEMS Syndrome Presentation with an Abscess within the Plasmacytoma—A Rare Case Report

    PubMed Central

    Agarwal, Rishi; Abidi, Muneer H.; Grandhi, Bala

    2011-01-01

    POEMS Syndrome is a rare cause of demyelinating and axonal mixed neuropathy. Plasmacytomas are usually seen in POEMS syndrome and can be osseous or extramedullary. Plasmacytomas presenting as an abscess has not been noted earlier. Our patient presented with localized hyperpigmented patch on the back and later developed progressive weakness in upper and lower limbs. Initially serum and urine protein electrophoresis were normal. The patient was thought to have Chronic Inflammatory Demyelinating Polyneuropathy and was treated accordingly without any improvement. Repeat serum protein electrophoresis showed monoclonal gammopathy. MRI of the back revealed an abscess in the paravertebral soft tissues reaching up to the skin. Needle biopsy was consistent with plasmacytoma. Later, he developed a purulent fungating lesion in the lower midback. Antibiotics were started and local resection was done followed by radiation. Pathology of the resected mass showed plasmacytoma extensively involving subcutaneous soft tissue and bone. The patient improved with the treatment. Cystic plasmacytomas and abscess within the plasmacytoma has not been reported earlier. Whether abscess formation is part of the disease spectrum due to infiltration of overlying tissue or is secondary to localized immunosuppression is unknown. Local treatment of a single plasmacytoma is useful in ameliorating systemic symptoms. PMID:22084694

  20. Case report : tuberculosis liver abscess in male alcoholism patient

    NASA Astrophysics Data System (ADS)

    Siahaan, W. P.; Ginting, F.

    2018-03-01

    A liver abscess often occurs in low-middle income countries such as Indonesia. Two most common liver abscesses are amoebic and pyogenic liver abscess. Data that reported tuberculosis liver abscess (TLA) is extremely rare. A diagnostic criterion for tuberculosis liver abscess is rare and remains unclear. A 52-year-old man developed a TLA which was not associated with any pulmonary or gastrointestinal tract foci of tuberculosis. An ultrasonogram and abdominal scan showed an abscess in the right lobe. We performed paracentesis, and the pus from the lesion was positive tubercular bacilli on acid-fast bacilli staining. The patient was started on systemic antitubercular therapy to which he responded favorably. This report emphasizes the fact that, although a TLA is a very rare entity, it should be included in the differential diagnosis of liver abscess especially in Indonesia where the prevalence of tuberculosis is extremely high.

  1. [Lung Abscess with Acute Empyema Which Improved after Performing by Video Assissted Thoracic Surgery( Including Pneumonotomy and Lung Abscess Drainage);Report of a Case].

    PubMed

    Gabe, Atsushi; Nagamine, Naoji

    2017-05-01

    We herein report the case of a patient demonstrating a lung abscess with acute empyema which improved after performing pnemumonotomy and lung abscess drainage. A 60-year-old male was referred to our hospital to receive treatment for a lung abscess with acute empyema. At surgery, the lung parenchyma was slightly torn with pus leakage. After drainage of lung abscess by enlarging the injured part, curettage in the thoracic cavity and decortication were performed. The postoperative course was uneventful. Direct drainage of an abscess into the thoracic cavity is thought to be a choice for the treatment of lung abscesses.

  2. Actinomyces meyeri brain abscess following dental extraction

    PubMed Central

    Clancy, U; Ronayne, A; Prentice, M B; Jackson, A

    2015-01-01

    We describe the rare occurrence of an Actinomyces meyeri cerebral abscess in a 55-year-old woman following a dental extraction. This patient presented with a 2-day history of hemisensory loss, hyper-reflexia and retro-orbital headache, 7 days following a dental extraction for apical peridonitis. Neuroimaging showed a large left parietal abscess with surrounding empyema. The patient underwent craniotomy and drainage of the abscess. A. meyeri was cultured. Actinomycosis is a rare cause of cerebral abscess. The A. meyeri subtype is particularly rare, accounting for less than 1% of specimens. This case describes an unusually brief course of the disease, which is usually insidious. Parietal lobe involvement is unusual as cerebral abscesses usually have a predilection for the frontal and temporal regions of the brain. Although there are no randomised trials to guide therapy, current consensus is to use a prolonged course of intravenous antibiotics, followed by 6–12 months of oral therapy. PMID:25870213

  3. Pyogenic Liver Abscess as Endemic Disease, Taiwan

    PubMed Central

    Tsai, Feng-Chiao; Huang, Yu-Tsung; Chang, Luan-Yin

    2008-01-01

    Pyogenic liver abscess has become a health problem in Taiwanese society. However, the extent of this problem has remained unclear because of the lack of a population-based study. We therefore performed a nationwide analysis of pyogenic liver abscess in Taiwan from 1996 through 2004. We analyzed 29,703 cases from the Taiwan National Health Insurance database and 506 cases from National Taiwan University Hospital. Our analysis showed that the annual incidence of pyogenic liver abscess increased steadily from 11.15/100,000 population in 1996 to 17.59/100,000 in 2004. Diabetes, malignancy, renal disease, and pneumonia were associated with a higher risk for the disease. By contrast, death due to pyogenic liver abscess decreased over time, although population-based abscess-related death increased slightly. Renal disease, malignancy, pneumonia, and heart disease correlated with higher death rates; Klebsiella pneumoniae infection and therapeutic procedures were related to lower death rates. Diabetes did not significantly change death rates for the 506 patients from the hospital. PMID:18826824

  4. Viral-bacterial associations in acute apical abscesses.

    PubMed

    Ferreira, Dennis C; Rôças, Isabela N; Paiva, Simone S M; Carmo, Flávia L; Cavalcante, Fernanda S; Rosado, Alexandre S; Santos, Kátia R N; Siqueira, José F

    2011-08-01

    Viral-bacterial and bacterial synergism have been suggested to contribute to the pathogenesis of several human diseases. This study sought to investigate the possible associations between 9 candidate endodontic bacterial pathogens and 9 human viruses in samples from acute apical abscesses. DNA extracts from purulent exudate aspirates of 33 cases of acute apical abscess were surveyed for the presence of 9 selected bacterial species using a 16S ribosomal RNA gene-based nested polymerase chain reaction (PCR) approach. Single or nested PCR assays were used for detection of the human papillomavirus (HPV) and herpesviruses types 1 to 8. Two-thirds of the abscess samples were positive for at least one of the target viruses. Specifically, the most frequently detected viruses were HHV-8 (54.5%); HPV (9%); and varicella zoster virus (VZV), Epstein-Barr virus (EBV), and HHV-6 (6%). Bacterial DNA was present in all cases and the most prevalent bacterial species were Treponema denticola (70%), Tannerella forsythia (67%), Porphyromonas endodontalis (67%), Dialister invisus (61%), and Dialister pneumosintes (57.5%). HHV-8 was positively associated with 7 of the target bacterial species and HPV with 4, but all these associations were weak. Several bacterial pairs showed a moderate positive association. Viral coinfection was found in 6 abscess cases, but no significant viral association could be determined. Findings demonstrated that bacterial and viral DNA occurred concomitantly in two-thirds of the samples from endodontic abscesses. Although this may suggest a role for viruses in the etiology of apical abscesses, the possibility also exists that the presence of viruses in abscess samples is merely a consequence of the bacterially induced disease process. Further studies are necessary to clarify the role of these viral-bacterial interactions, if any, in the pathogenesis of acute apical abscesses. Copyright © 2011 Mosby, Inc. All rights reserved.

  5. Oral microbiota species in acute apical endodontic abscesses

    PubMed Central

    George, Noelle; Flamiatos, Erin; Kawasaki, Kellie; Kim, Namgu; Carriere, Charles; Phan, Brian; Joseph, Raphael; Strauss, Shay; Kohli, Richie; Choi, Dongseok; Craig Baumgartner, J.; Sedgley, Christine; Maier, Tom; Machida, Curtis A.

    2016-01-01

    Background and objectives Acute apical abscesses are serious endodontic diseases resulting from pulpal infection with opportunistic oral microorganisms. The objective of this study was to identify and compare the oral microbiota in patients (N=18) exhibiting acute apical abscesses, originating from the demographic region in Portland, Oregon. The study hypothesis is that abscesses obtained from this demographic region may contain unique microorganisms not identified in specimens from other regions. Design Endodontic abscesses were sampled from patients at the Oregon Health & Science University (OHSU) School of Dentistry. DNA from abscess specimens was subjected to polymerase chain reaction amplification using 16S rRNA gene-specific primers and Cy3-dCTP labeling. Labeled DNA was then applied to microbial microarrays (280 species) generated by the Human Oral Microbial Identification Microarray Laboratory (Forsyth Institute, Cambridge, MA). Results The most prevalent microorganisms, found across multiple abscess specimens, include Fusobacterium nucleatum, Parvimonas micra, Megasphaera species clone CS025, Prevotella multisaccharivorax, Atopobium rimae, and Porphyromonas endodontalis. The most abundant microorganisms, found in highest numbers within individual abscesses, include F. nucleatum, P. micra, Streptococcus Cluster III, Solobacterium moorei, Streptococcus constellatus, and Porphyromonas endodontalis. Strong bacterial associations were identified between Prevotella multisaccharivorax, Acidaminococcaceae species clone DM071, Megasphaera species clone CS025, Actinomyces species clone EP053, and Streptococcus cristatus (all with Spearman coefficients >0.9). Conclusions Cultivable and uncultivable bacterial species have been identified in endodontic abscesses obtained from the Portland, Oregon demographic region, and taxa identifications correlated well with other published studies, with the exception of Treponema and Streptococcus cristae, which were not commonly

  6. Oral microbiota species in acute apical endodontic abscesses.

    PubMed

    George, Noelle; Flamiatos, Erin; Kawasaki, Kellie; Kim, Namgu; Carriere, Charles; Phan, Brian; Joseph, Raphael; Strauss, Shay; Kohli, Richie; Choi, Dongseok; Baumgartner, J Craig; Sedgley, Christine; Maier, Tom; Machida, Curtis A

    2016-01-01

    Acute apical abscesses are serious endodontic diseases resulting from pulpal infection with opportunistic oral microorganisms. The objective of this study was to identify and compare the oral microbiota in patients (N=18) exhibiting acute apical abscesses, originating from the demographic region in Portland, Oregon. The study hypothesis is that abscesses obtained from this demographic region may contain unique microorganisms not identified in specimens from other regions. Endodontic abscesses were sampled from patients at the Oregon Health & Science University (OHSU) School of Dentistry. DNA from abscess specimens was subjected to polymerase chain reaction amplification using 16S rRNA gene-specific primers and Cy3-dCTP labeling. Labeled DNA was then applied to microbial microarrays (280 species) generated by the Human Oral Microbial Identification Microarray Laboratory (Forsyth Institute, Cambridge, MA). The most prevalent microorganisms, found across multiple abscess specimens, include Fusobacterium nucleatum, Parvimonas micra, Megasphaera species clone CS025, Prevotella multisaccharivorax, Atopobium rimae, and Porphyromonas endodontalis. The most abundant microorganisms, found in highest numbers within individual abscesses, include F. nucleatum, P. micra, Streptococcus Cluster III, Solobacterium moorei, Streptococcus constellatus, and Porphyromonas endodontalis. Strong bacterial associations were identified between Prevotella multisaccharivorax, Acidaminococcaceae species clone DM071, Megasphaera species clone CS025, Actinomyces species clone EP053, and Streptococcus cristatus (all with Spearman coefficients >0.9). Cultivable and uncultivable bacterial species have been identified in endodontic abscesses obtained from the Portland, Oregon demographic region, and taxa identifications correlated well with other published studies, with the exception of Treponema and Streptococcus cristae, which were not commonly identified in endodontic abscesses between the

  7. Orbital abscess caused by Fusobacterium necrophorum.

    PubMed

    Pitkäranta, Anne; Lindahl, Päivi; Raade, Merja; Puohiniemi, Ritvaleena

    2004-05-01

    We report the case of previously healthy boy with orbital abscess secondary to sinusitis. Fusobacterium necrophorum and Streptococcus anginosus was cultured both from the maxillary sinus and the orbital abscess. After surgical drainage and intravenous antibiotic treatment the boy recovered without complications.

  8. Klebsiella pneumoniae liver abscess and endophthalmitis

    PubMed Central

    Abdul-Hamid, Ayeshah; Bailey, Sarah-Jane

    2013-01-01

    A 36-year-old man was referred to the general medical team with endophthalmitis. He was noted to have raised inflammatory markers and deranged liver function tests on admission. Subsequent abdominal ultrasound scan revealed a liver abscess requiring percutaneous drainage. A common human pathogen, Klebsiella pneumoniae, was cultured from multiple sites. K pneumoniae has virulent serotypes (K1 and K2) that can cause primary liver abscess with metastatic infections. Cases have previously been predominantly reported in Southeast Asia but are increasing in prevalence in Europe and North America. The main known risk factor for the disease is diabetes mellitus. Swift antibiotic therapy, ophthalmology review and percutaneous drainage of any liver abscess are essential. Early recognition of the syndrome, despite potentially few initial symptoms, can significantly reduce morbidity and mortality. The authors report the first recorded case of K pneumoniae liver abscess with endophthalmitis in the UK. PMID:23559652

  9. Perirenal abscess

    MedlinePlus

    ... infection. Causes Most perirenal abscesses are caused by urinary tract infections that start in the bladder. They then spread ... develop: Abdominal pain Burning with urination Chills Fever Urinary tract infection Prevention If you have kidney stones, ask your ...

  10. Transurethral Drainage of Prostatic Abscess: Points of Technique

    PubMed Central

    El-Shazly, Mohamed; El- Enzy, Nawaf; El-Enzy, Khaled; Yordanov, Encho; Hathout, Badawy; Allam, Adel

    2012-01-01

    Background The incidence of prostatic abscess (PA) has markedly declined with the widespread use of antibiotics and the decreasing incidence of urethral gonococcal infections. Objectives To evaluate different treatment methods for prostatic abscess and to describe technical points that will improve the outcome of transurethral (TUR) drainage of prostatic abscess. Patients and Methods We performed a retrospective study of a series of 11 patients diagnosed with prostatic abscess, who were admitted and treated in Farwaniya Hospital, Kuwait, between February 2008 and November 2010. Drainage was indicated when antibiotic therapy did not cause clinical improvement and after prostatic abscess was confirmed by TRUS (Transrectal ultrasonography) and/or CT computed Tomographyscan. TUR drainage was indicated in 7 cases, ultrasound-guided transrectal drainage was performed in 2 cases, and ultrasound-guided perineal drainage was performed in 2 cases. Results All patients that underwent TUR-drainage had successful outcomes, without the need of secondary treatment or further surgery. Conclusions TUR drainage of a prostatic abscess increases the likelihood of a successful outcome and lowers the incidence of treatment failure or repeated surgery. Less invasive treatment, with perineal or transrectal aspiration, may be preferred as a primary treatment in relatively young patients with localized abscess cavities. PMID:23573466

  11. Intraabdominal abscess related fungaemia caused by Rhodotorula glutinis in a non-neutropenic cancer patient.

    PubMed

    Diktas, H; Gulec, B; Baylan, O; Oncul, O; Turhan, V; Acar, A; Gorenek, L

    2013-01-01

    Rhodotorula glutinis is a rare fungal infection that is especially observed in immune-compromised patients. It is common in the skin, faeces, nails, sputum, gastrointestinal system and adenoid tissue. However, the incidence of Rhodotorula glutinis is increased in both local and systemic infections in recent years. Presented here is a case of Rhodotorula glutinis fungaemia that isolated from subhepatic abscess formation and blood in a patient who was operated with Roux-en-Y technique due to gastric adenocarcinoma. Fungal sepsis is an important cause of fever resistant to antibiotic therapy that is often taken into marginal account. It should instead be particularly considered in patients with a history of intraabdominal surgery and non-neutropenic cancer patients. The case described illustrates an episode of systemic infection by Rhodotorula glutinis, correlated with the presence of intraabdominal abscess and without central venous catheters. This is the first case of fungaemia by Rhodotorula glutinis with an intraabdominal abscess source reported from Turkey.

  12. [Congenital cardiopathy and cerebral abscess].

    PubMed

    Paixão, A; de Andrade, F F; Sampayo, F

    1989-01-01

    During 1986 the authors came across two cases of brain abscess among children with congenital heart disease followed at the Pediatric Cardiology Service and decided to evaluate their global experience on the subject. In a retrospective study of 860 infants and children with cyanotic congenital heart disease and final diagnosis, there were four cases complicated with brain abscess. The following items were evaluated: prevalence of the complication, type of congenital heart disease, date and age at the diagnosis of brain abscess, diagnostic methods, neurosurgical treatment and results. The main findings were: all patients were above two years of age and had noncorrected cyanotic congenital heart disease belonging to the classic high risk group; the first two cases had been treated in other institutions and only scanty information was available; two recent cases had early diagnosis on CAT scan followed by neurosurgical treatment. All children survived. brain abscess is a rare but severe complication occurring in patients with noncorrected cyanotic congenital heart disease above two years of age; whenever prevention turns impossible, early diagnosis and treatment provide good short term and long term results. A multidisciplinar approach with full cooperation is advocated.

  13. Analysis of the Bacterial Diversity in Liver Abscess: Differences between Pyogenic and Amebic Abscesses

    PubMed Central

    Reyna-Fabián, Miriam E.; Zermeño, Valeria; Ximénez, Cecilia; Flores, Janin; Romero, Miguel F.; Diaz, Daniel; Argueta, Jesús; Moran, Patricia; Valadez, Alicia; Cerritos, René

    2016-01-01

    Several recent studies have demonstrated that virulence in Entamoeba histolytica is triggered in the presence of both pathogenic and nonpathogenic bacteria species using in vitro and in vivo experimental animal models. In this study, we examined samples aspirated from abscess material obtained from patients who were clinically diagnosed with amebic liver abscess (ALA) or pyogenic liver abscess (PLA). To determine the diversity of bacterial species in the abscesses, we performed partial 16S rRNA gene sequencing. In addition, the E. histolytica and Entamoeba dispar species were genotyped using tRNA-linked short tandem repeats as specific molecular markers. The association between clinical data and bacterial and parasite genotypes were examined through a correspondence analysis. The results showed the presence of numerous bacterial groups. These taxonomic groups constitute common members of the gut microbiota, although all of the detected bacterial species have a close phylogenetic relationship with bacterial pathogens. Furthermore, some patients clinically diagnosed with PLA and ALA were coinfected with E. dispar or E. histolytica, which suggests that the virulence of these parasites increased in the presence of bacteria. However, no specific bacterial groups were associated with this effect. Together, our results suggest a nonspecific mechanism of virulence modulation by bacteria in Entamoeba. PMID:26572872

  14. Lung abscess following bronchoscopy due to multidrug-resistant Capnocytophaga sputigena adjacent to lung cancer with high PD-L1 expression.

    PubMed

    Migiyama, Yohei; Anai, Moriyasu; Kashiwabara, Kosuke; Tomita, Yusuke; Saeki, Sho; Nakamura, Kazuyoshi; Okamoto, Shinichiro; Ichiyasu, Hidenori; Fujii, Kazuhiko; Kohrogi, Hirotsugu

    2018-04-24

    Lung abscess following flexible bronchoscopy is a rare and sometimes fatal iatrogenic complication. Here, we report the first case of a lung abscess caused by multidrug-resistant Capnocytophaga sputigena following bronchoscopy. A 67-year-old man underwent bronchoscopy to evaluate a lung mass. Seven days after transbronchial lung biopsy, he presented with an abscess formation in a lung mass. Empirical antibiotic therapy, including with garenoxacin, ampicillin/sulbactam, clindamycin and cefepime, was ineffective. Percutaneous needle aspiration of lung abscess yielded C. sputigena resistant to multiple antibiotics but remained susceptible to carbapenem. He was successfully treated by the combination therapy with surgery and with approximately 6 weeks of intravenous carbapenem. Finally he was diagnosed with a lung abscess with adenocarcinoma expressing high levels of programmed cell death ligand 1. The emergence of multidrug-resistant Capnocytophaga species is a serious concern for effective antimicrobial therapy. Clinicians should consider multidrug-resistant C. sputigena as a causative pathogen of lung abscess when it is refractory to antimicrobial treatment. Copyright © 2018 Japanese Society of Chemotherapy and The Japanese Association for Infectious Diseases. Published by Elsevier Ltd. All rights reserved.

  15. Non operative management of cerebral abscess

    NASA Astrophysics Data System (ADS)

    Batubara, C. A.

    2018-03-01

    Cerebral abscess is a focal intracerebral infection that begins as a localized area of cerebritis and develops into a collection of pus surrounded by a well-vascularized capsule. Patients typically present with varying combinations of aheadache, progressive neurologic deficits, seizures, and evidence of infection. Computed Tomography and Magnetic Resonance Imagingare the most important diagnostic tools in diagnosing cerebral abscess. The treatment of cerebral abscess has been a challenge. Small cerebralabscesses (< 2.5 cm) have been treated empirically with antibiotics. Elevation of intracranial pressure and threatening herniation can be managed by the use of intravenous mannitol (or hypertonic saline) and dexamethasone. Acute seizures should be terminated with the administration of intravenous benzodiazepines or by intravenous fosphenytoin. Anticonvulsants prophylaxis must be initiated immediately and continued at least one year due to high risk in the cerebral abscesses. Easier detection of underlying conditions, monitoring of the therapeutic progress, and recognition of complications have probably contributed to the improved prognosis.

  16. Case report: liver abscess pyogenic after peritonitis appendix perforation

    NASA Astrophysics Data System (ADS)

    Damanik, E. H.; Ginting, F.

    2018-03-01

    Two of the most common liver abscess is anamoebic liver abscess and pyogenic liver abscess (PLA). PLA could be as singular or multiple abscesses. It is usually caused by Klebsiella pneumonia and Escherichia coli. Historically, PLA is usually caused by acute appendicitis, but with developed of surgical practice and microbiology, the number of events has decreased. Here we present a case of a39-year-old woman that developed a PLA after she had an appendectomy about six months ago. An ultrasonogram and abdominal scan showed an abscess in the right lobe. We performed paracentesis, and the result from the pus culturewas positive for Escherichia coli with Extended-Spectrum Beta-Lactamase (ESBL) (+) that showed the same as the culture from lesion taken from her appendix. This report emphasizes the fact that, nowadays we still found Pyogenic liver abscess after peritonitis appendix perforation.

  17. Efficacy of aspiration in amebic liver abscess.

    PubMed

    Ghosh, Jayant Kumar; Goyal, Sundeep Kumar; Behera, Manas Kumar; Tripathi, Manish Kumar; Dixit, Vinod Kumar; Jain, Ashok Kumar; Shukla, Ramchandra

    2015-01-01

    Amebic liver abscess (ALA) is a common and serious problem in our country. There are only a few controlled trials on the efficacy and advantages of combination therapy with percutaneous needle aspiration and pharmacotherapy, over pharmacotherapy alone for amebic liver abscess. This study was conducted to compare the efficacy of two different treatment modalities i.e. drug treatment alone vs. drug treatment and aspiration of abscess cavity in patients with small (up to 5 cm) and large (5 cm to 10 cm) size ALA. This is one of the largest single center, prospective, randomized studies comparing the efficacy of aspiration in ALA. (i) Mean body temperature, liver tenderness, total leukocyte count (TLC), serum alanine aminotransferase (ALT) and liver span were significantly decreased in the aspiration group on days 8 and 15 as compared to non-aspiration group especially in large abscess (5 cm to 10 cm). (ii) Abscess cavity maximum diameter decreased significantly in aspiration group on days 8 and 15, and 1 month & 3 months in large abscess (5cm to 10 cm). (i) Needle aspiration along with metronidazole hastens clinical improvement especially in large (5 cm up to 10 cm) cavities in patients with ALA. (ii) Aspiration is safe and no major complications occurred. (iii) Hence, combination therapy should be the first choice especially in large ALA (5 cm to 10 cm).

  18. Current trends in the diagnosis and treatment of tuboovarian abscess

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Landers, D.V.; Sweet, R.L.

    Tuboovarian abscess is a well-recognized complication of acute salpingitis and has been reported in as many as one third of hospital admissions for acute salpingitis. The incidence of tuboovarian abscess is expected to increase as a result of the current epidemic of sexually transmitted diseases and their sequelae. Patients with tuboovarian abscess most commonly present with lower abdominal pain and an adnexal mass(es). Fever and leukocytosis may be absent. Ultrasound, computed tomographic scans, laparoscopy, or laparotomy may be necessary to confirm the diagnosis. Tuboovarian abscess may be unilateral or bilateral regardless of intrauterine contraceptive device usage. Tuboovarian abscess is polymicrobialmore » with a preponderance of anaerobic organisms. An initial conservative antimicrobial approach to the management of the unruptured tuboovarian abscess is appropriate if the antimicrobial agents used can penetrate abscesses, remain active within the abscess environment, and are active against the major pathogens in tuboovarian abscess, including the resistant gram-negative anaerobes such as Bacteroides fragilis and Bacteroides bivius. However, if the patient does not begin to show a response within a reasonable amount of time, about 48 to 72 hours, surgical intervention should be undertaken. Suspicion of rupture should remain an indication for immediate operation. Once operation is undertaken, a conservative approach with unilateral adnexectomy for one-side tuboovarian abscess is appropriate if future fertility or hormone production is desired.« less

  19. Primary tubercular abscess of the breast--an unusual entity.

    PubMed

    Gupta, R; Singal, R P; Gupta, A; Singal, S; Shahi, S R; Singal, R

    2012-02-22

    Primary breast tuberculosis manifested as abscess is a rare entity. We are reporting a case of primary breast tuberculosis, which presented as breast abscess. Abscess was drained and tissue sent for histopathology. To our surprise, diagnosis came as breast tuberculosis. Aspiration cytology was not done, as it is not a routine test for abscess cases. Patient was put on anti- tubercular drugs. In the follow-up of 6 months, she was asymptomatic and advised to continue medicine.

  20. Phenotypes, serotypes and antibiotic susceptibility of Swedish Porphyromonas gingivalis isolates from periodontitis and periodontal abscesses.

    PubMed

    Dahlén, G; Gmür, R; Yoshino, T

    2007-04-01

    This study was conducted to reveal phenotypic, serological subtypes and antibiotic susceptibility among fresh isolates of Porphyromonas gingivalis in a Swedish population with periodontitis and periodontal abscess. Fifty-five subgingival strains were isolated and tentatively designated as P. gingivalis from 55 consecutive paper-point samples taken from 51 patients with periodontitis (at least one site with >6-mm pocket depth) in Sweden and were sent in for microbiological evaluation. Eight P. gingivalis strains from periodontal abscesses were also included. Four P. gingivalis strains served as reference and another four type strains were included. The strains were characterized by colony morphology, biochemical tests, enzyme profile, gas-liquid chromatography and antibiotic susceptibility. The strains were further characterized for whole cell protein profiles using sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) and were identified to serotype by specific monoclonal antibodies. Among the 55 P. gingivalis strains 35 had smooth (S), 13 rough (R) and seven semi-rough colony morphologies. All strains were phenotypically homogeneous in biochemical tests, enzyme profile and antibiotic susceptibility. All strains produced phenylacetic acid and alpha-fucosidase. Almost all (96%) of the subgingival strains, but relatively fewer (62%) of the abscess strains, belonged to serotype A. Two subgingival and three abscess strains were classified as serotype B. No specific SDS-PAGE protein profiles were recorded for the two serotypes. The P. gingivalis strains from Swedish periodontitis cases showed homogeneity in terms of biochemical phenotypes and antibiotic susceptibility patterns. The strains fell into two serotypes, of which serotype A predominated in the periodontitis cases and serotype B was overrepresented in periodontal abscesses.

  1. [Pyogenic abscess of the breast: clinical and therapeutic aspects].

    PubMed

    Beyrouti, M I; Boujelben, S; Beyrouti, R; Ben Amar, M; Abid, M; Louati, D; Zidi, Z; Ben Salah, K; Abid, O; Ghorbel, A

    2007-01-01

    The goal of this retrospective work was to study the clinical aspects and the principles of management of the abscess of the breast in order to determine a convenient and recent therapeutic attitude. Our retrospective survey concerns 114 cases of breast abscess collected in a surgery department over a period of 14 years, from 1990 to 2003. All patients have been operated and the diagnosis confirmed through the operation. The puerperal abscesses have been noted in 31 cases. One hundred and four women and ten men were concerned, with a sex-ratio of 0.1. The medium age was 33 years old for the women and 42 years for the men. The diagnosis was based on the clinical criteria, confirmed by the ultrasonography in 11 cases out of 16 and by the mammary puncture in 15 cases out of 22. Two non-puerperal abscesses have revealed an infiltrating canal carcinoma. The Staphylococcus aureus was the germ the most frequently met, concerning 8 cases out of 16. The surgical biopsies carried out in 52 cases revealed a fibrocystic mastopathy in six cases, a canalar ectasia in two cases and an infiltrating canalar carcinoma in two cases. The surgical treatment, performed in any case, was associated to an anti-staphylococcus antibiotherapy. The recurrence of the abscess has been observed in four cases. The frequency of pyogenic abscess of the breast, particularly the puerperal abscesses, has considerably decreased. The non-puerperal abscesses often pose a differential diagnosis problem with the very aggressive inflammatory cancers. The percutaneous ultrasonography guided drainage must be proposed in first intention to treat the abscesses of the breast. However, surgical treatment is still valid with an abscess either relapsing or chronic, or else the failure of the non-operative processes.

  2. [Solitary actinomycotic brain abscess: case report].

    PubMed

    Takahashi, Kiyoshi; Hasegawa, Yoshihito; Nishimoto, Yo; Hayashi, Satoru; Yamasaki, Masahiro; Kuzume, Daisuke; Hashimoto, Keiko; Enzan, Hideaki

    2012-06-01

    Actinomycotic brain abscess is a rare condition with uncertain clinical features. Here we report the case of a 66-year-old immune-competent woman with an actinomycotic brain abscess who presented with sensory aphasia and mild right hemiparesis. She had no febrile episode or headache. Moreover, she did not have any periodontal or oto-rhino-laryngological disease, and the results of laboratory tests were normal. A computed tomography scan showed an irregular, low-density area in the left parietal lobe. Subsequent magnetic resonance imaging showed low-signal intensity in a T1 weighted image, high-signal intensity in a T2 weighted image, and mixed intensity on a diffusion weighted image. Thallium-201 chloride scintigraphy showed definite accumulation of thallium in the lesion and the patient's condition gradually deteriorated. Ten days after gadolinium administration, a T1 weighted image showed a multi- lobulated irregular mass in the left parietal lobe. The patient subsequently underwent craniotomy and evacuation of the yellowish abscess. Gram staining of the tissue showed the presence of gram-positive filamentous rods, and abscess cultures were positive for Actinomyces and Prevotella disiens. The abscess resolved after treatment with a high dose of intravenous penicillin G (24 million units/day) for 8 weeks, followed by an oral dose of amoxicillin for 4 months. The patient was discharged with a rudimentary limitation of the visual field.

  3. Injection-site vein loss and soft tissue abscesses associated with black tar heroin injection: A cross-sectional study of two distinct populations in USA.

    PubMed

    Summers, Phillip J; Struve, Isabelle A; Wilkes, Michael S; Rees, Vaughan W

    2017-01-01

    Injection-site vein loss and skin abscesses impose significant morbidity on people who inject drugs (PWID). The two common forms of street heroin available in the USA include black tar and powder heroin. Little research has investigated these different forms of heroin and their potential implications for health outcomes. A multiple-choice survey was administered to a sample of 145 participants seeking services at reduction facilities in both Sacramento, CA and greater Boston, MA, USA. Multivariate regression models for reporting one or more abscesses in one year, injection-site veins lost in six months, and soft tissue injection. Participants in Sacramento exclusively used black tar (99%), while those in Boston used powder heroin (96%). Those who used black tar heroin lost more injection-site veins (β=2.34, 95% CI: 0.66-4.03) and were more likely to report abscesses (AOR=7.68, 95% CI: 3.01-19.60). Soft tissue injection was also associated with abscesses (AOR=4.68, 95% CI: 1.84-11.93). Consistent venous access (AOR: 0.088, 95% CI: 0.011-0.74) and losing more injection sites (AOR: 1.22, 95% CI: 1.03-1.45) were associated with soft tissue injection. Use of black tar heroin is associated with more frequent abscesses and more extensive vein loss. Poor venous access predisposes people who inject drugs to soft tissue injection, which may constitute a causal pathway between black tar heroin injection and abscess formation. The mechanisms by which black tar heroin contributes to vein loss and abscess formation must be further elucidated in order to develop actionable interventions for maintaining vein health and decreasing the abscess burden. Potential interventions include increased access to clean injection equipment and education, supervised injection facilities, opioid substitution therapy, and supply chain interventions targeting cutting agents. Copyright © 2016 Elsevier B.V. All rights reserved.

  4. Surfactant process for promoting gas hydrate formation and application of the same

    DOEpatents

    Rogers, Rudy E.; Zhong, Yu

    2002-01-01

    This invention relates to a method of storing gas using gas hydrates comprising forming gas hydrates in the presence of a water-surfactant solution that comprises water and surfactant. The addition of minor amounts of surfactant increases the gas hydrate formation rate, increases packing density of the solid hydrate mass and simplifies the formation-storage-decomposition process of gas hydrates. The minor amounts of surfactant also enhance the potential of gas hydrates for industrial storage applications.

  5. The Cold Side of Galaxy Formation: Dense Gas Through Cosmic Time

    NASA Astrophysics Data System (ADS)

    Riechers, Dominik A.; ngVLA Galaxy Assembly through Cosmic Time Science Working Group, ngVLA Galaxy Ecosystems Science Working Group

    2018-01-01

    The processes that lead to the formation and evolution of galaxies throughout the history of the Universe involve the complex interplay between hierarchical merging of dark matter halos, accretion of primordial and recycled gas, transport of gas within galaxy disks, accretion onto central super-massive black holes, and the formation of molecular clouds which subsequently collapse and fragment. The resulting star formation and black hole accretion provide large sources of energy and momentum that light up galaxies and lead to feedback. The ngVLA will be key to further understand how gas is accreted onto galaxies, and the processes that regulate the growth of galaxies through cosmic history. It will reveal how and on which timescales star formation and black hole accretion impact the gas in galaxies, and how the physical properties and chemical state of the gas change as gas cycles between different phases for different galaxy populations over a broad range in redshifts. The ngVLA will have the capability to carry out unbiased, large cosmic volume surveys at virtually any redshift down to an order of magnitude lower gas masses than currently possible in the critical low-level CO lines, thus exposing the evolution of gaseous reservoirs from the earliest epochs to the peak of the cosmic history of star formation. It will also image routinely and systematically the sub-kiloparsec scale distribution and kinematic structure of molecular gas in both normal main-sequence galaxies and large starbursts. The ngVLA thus is poised to revolutionize our understanding of galaxy evolution through cosmic time.

  6. Risk factors for Staphylococcus aureus postpartum breast abscess.

    PubMed

    Branch-Elliman, Westyn; Golen, Toni H; Gold, Howard S; Yassa, David S; Baldini, Linda M; Wright, Sharon B

    2012-01-01

    Staphylococcus aureus (SA) breast abscesses are a complication of the postpartum period. Risk factors for postpartum SA breast abscesses are poorly defined, and literature is conflicting. Whether risk factors for methicillin-resistant SA (MRSA) and methicillin-susceptible SA (MSSA) infections differ is unknown. We describe novel risk factors associated with postpartum breast abscesses and the changing epidemiology of this infection. We conducted a cohort study with a nested case-control study (n = 216) involving all patients with culture-confirmed SA breast abscess among >30 000 deliveries at our academic tertiary care center from 2003 through 2010. Data were collected from hospital databases and through abstraction from medical records. All SA cases were compared with both nested controls and full cohort controls. A subanalysis was completed to determine whether risk factors for MSSA and MRSA breast abscess differ. Univariate analysis was completed using Student's t test, Wilcoxon rank-sum test, and analysis of variance, as appropriate. A multivariable stepwise logistic regression was used to determine final adjusted results for both the case-control and the cohort analyses. Fifty-four cases of culture-confirmed abscess were identified: 30 MRSA and 24 MSSA. Risk factors for postpartum SA breast abscess in multivariable analysis include in-hospital identification of a mother having difficulty breastfeeding (odds ratio, 5.00) and being a mother employed outside the home (odds ratio, 2.74). Risk factors did not differ between patients who developed MRSA and MSSA infections. MRSA is an increasingly important pathogen in postpartum women; risk factors for postpartum SA breast abscess have not changed with the advent of community-associated MRSA.

  7. Sonographic features of neonatal mastitis and breast abscess.

    PubMed

    Borders, Heather; Mychaliska, George; Gebarski, K Stiennon

    2009-09-01

    Neonatal mastitis and neonatal breast abscess are uncommon. Although well described in the pediatric and surgical literature, there is a paucity of reports describing their sonographic features. To describe and illustrate the sonographic features of neonatal mastitis and neonatal breast abscess. We reviewed the medical database of a large children's health-care center from 2000 through 2008 for patients presenting in the first 8 weeks of life with mastitis. The findings were correlated with clinical presentation and course, laboratory findings and clinical outcome. Four neonates (three girls and one boy) presented with mastitis. They all had prominent breast buds on the affected side with poorly defined margins, slightly more echogenic focally or diffusely compared to normal with hyperemia on color flow Doppler US. The surrounding subcutaneous tissue was thick and echogenic. Two abscesses presented as avascular areas without color flow on Doppler US, subtly increased through-transmission and surrounding hyperemia. One abscess was of increased echogenicity while the other was anechoic. Neonatal mastitis and breast abscess are unusual diseases that should be appropriately treated with antibiotics and drainage to avoid generalized sepsis, breast hypoplasia, and scarring. US is useful in distinguishing mastitis from breast abscess and guiding treatment options.

  8. Brain abscesses associated with right-to-left shunts in adults.

    PubMed

    Memon, Kashif A; Cleveland, Kerry O; Gelfand, Michael S

    2012-04-01

    Although brain abscesses are frequently cryptogenic in origin, bacteria must reach the brain either by direct or hematogenous spread. Right-to-left shunts, caused either by intrapulmonary vascular malformations or congenital heart defects, may allow microorganisms to evade the normal host defenses in the lungs and lead to development of brain abscesses. Two patients recently presented with brain abscesses and were found to have conditions associated with right-to-left shunts. The diagnosis of brain abscess should prompt the clinician to consider right-to-left shunts as a possible predisposing condition for brain abscess.

  9. [Periodontal abscess: etiology, diagnosis and treatment].

    PubMed

    Vályi, Péter; Gorzó, István

    2004-08-01

    The periodontal abscess is an acute destructive process in the periodontium resulting in localized collections of pus communicating with the oral cavity through the gingival sulcus or other periodontal sites and not arising from the tooth pulp. The prevalence of periodontal abscess is relatively high and it affects the prognosis of the tooth. Periodontal abscesses can develop on the base of persisting periodontitis but can also occur in the absence of periodontitis. The cause of the development of periodontal abscess originating from chronic periodontitis is the marginal closure of a periodontal pocket, or the pocket lumen might be too tight to drain the increased suppuration due to changes in the composition of subgingival microflora, alteration of bacterial virulence or host defenses. Diagnosis of a periodontal abscess is based on medical and dental history as well as oral examination (pocket depth, swelling, suppuration, mobility, sensibility of the tooth). The most prevalent group of bacteria: P. gingivalis, P. intermedia, B. forsythus, F. nucleatum and P. micros. Previous studies have suggested that the complete therapy of the periodontitis patients with acute periodontal abscess has to do in two stages: the first stage is the management of acute lesions, then the second stage is the appropriate comprehensive treatment of the original and/or residual lesions. The management of acute lesions includes establishing drainage via pocket lumen, subgingival scaling and root planing, curettage of the lining pocket epithelia and seriously inflamed connective tissue, compressing pocket wall to underlying tooth and periodontal support, and maintaining tissue contact. Some authors recommend the incision or to establish drainage and irrigation, or a flap surgery, or even extraction of hopeless teeth. We recommend the use of systemic antibiotics as a preventive measure of systemic disease or in case of systemic symptoms.

  10. Splenic abscess after splenic blunt injury angioembolization.

    PubMed

    Tartaglia, Dario; Galatioto, Christian; Lippolis, Piero Vincenzo; Modesti, Matteo; Gianardi, Desirée; Bertolucci, Andrea; Cucinotta, Monica; Zocco, Giuseppe; Seccia, Massimo

    2014-11-03

    Splenic Angioembolization (SAE), during Nonoperative Management (NOM) of Blunt Splenic Injury (BSI), is an effective therapy for hemodynamically stable patients with grade III, IV, and V OIS splenic injuries. We report a case of a patient with a blunt abdominal trauma due to an accidental fall, who presented splenic abscess a week after SAE and a review of the literature. A 38-year-old male arrived at Emergency after an accidental fall with contusion of the left upper quadrant of the abdomen. Abdominal CT scan revealed the fracture of the lower splenic pole with intraparenchymal pseudoaneurysms (OIS spleen injury scale IV). Considering the hemodynamic stability, NOM was undertaken and SAE was performed. After a week, the patient developed a splenic abscess confirmed by Abdominal CT; therefore, splenectomy was performed. There was no evidence of bacterial growing in the perisplenic hematoma cultures but the histological examination showed multiple abscess and hemorrhagic areas in the spleen. Splenic abscess after SAE during NOM of BSI is a rare major complication. The most frequently cultured organisms include Clostridium perfringens, Alpha-Hemoliticus Streptococcus, gram-positive Staphylococcus, gram-negative Salmonella, Candida, and Aspergillus. This case represents our first reported splenic abscess after SAE. SAE is a very useful tool for BSI managing; splenic abscess can occur in a short time, even if it is a rare major complication, so it may be useful to monitor patients undergoing SAE, focusing not only on the hemodynamic parameters but also on the inflammatory and infectious aspects.

  11. Ultrasound Visualization of Atypical Abscess Ultimately Containing Bot Fly Larva.

    PubMed

    Bovino, Patrick; Cole, John; Scheatzle, Mark

    2016-08-01

    Because of the rise in community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA), presentations to the emergency department for the evaluation of cutaneous abscesses have risen dramatically over the past 2 decades. Soft tissue point of care ultrasound (POCUS) differentiates abscess from cellulitis, determines the size and shape, and characterizes the contents of the abscess. It has been shown to improve medical decision-making and therefore the emergency management of cutaneous abscesses over physical examination alone. We report a case of an unusual nonhealing abscess in an 18-year-old woman with a recent history of foreign travel where soft tissue POCUS identified motion within the abscess pocket. This changed the management of the case, leading to the diagnosis of bot fly myiasis. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Clinicians should entertain a broader differential for an apparent abscess and consider liberal use of soft tissue POCUS in these cases. Copyright © 2016 Elsevier Inc. All rights reserved.

  12. Influence of surfactants on gas-hydrate formation' kinetics in water-oil emulsion

    NASA Astrophysics Data System (ADS)

    Zemenkov, Yu D.; Shirshova, A. V.; Arinstein, E. A.; Shuvaev, A. N.

    2018-05-01

    The kinetics of gas hydrate formation of propane in a water-oil emulsion is experimentally studied when three types of surfactants (SAA (surface acting agent)) - anionic type emulsifiers - are added to the aqueous phase. It is shown that all three types of surfactants decelerate the growth of the gas-hydrate in the emulsion and can be considered as anti-agglutinating and kinetic low-dose inhibitors. The most effective inhibitor of hydrate formation in water-oil emulsion of SV-102 surfactant was revealed. For comparison, experimental studies of gas-hydrate formation under the same conditions for bulk water have been carried out. It is shown that in bulk water, all the surfactants investigated act as promoters (accelerators) of hydrate formation. A qualitative explanation of the action mechanisms of emulsifiers in the process of gas-hydrate formation in water-oil emulsion is given.

  13. A study of the gas-star formation relation over cosmic time

    NASA Astrophysics Data System (ADS)

    Genzel, R.; Tacconi, L. J.; Gracia-Carpio, J.; Sternberg, A.; Cooper, M. C.; Shapiro, K.; Bolatto, A.; Bouché, N.; Bournaud, F.; Burkert, A.; Combes, F.; Comerford, J.; Cox, P.; Davis, M.; Schreiber, N. M. Förster; Garcia-Burillo, S.; Lutz, D.; Naab, T.; Neri, R.; Omont, A.; Shapley, A.; Weiner, B.

    2010-10-01

    We use the first systematic data sets of CO molecular line emission in z ~ 1-3 normal star-forming galaxies (SFGs) for a comparison of the dependence of galaxy-averaged star formation rates on molecular gas masses at low and high redshifts, and in different galactic environments. Although the current high-z samples are still small and biased towards the luminous and massive tail of the actively star-forming `main-sequence', a fairly clear picture is emerging. Independent of whether galaxy-integrated quantities or surface densities are considered, low- and high-z SFG populations appear to follow similar molecular gas-star formation relations with slopes 1.1 to 1.2, over three orders of magnitude in gas mass or surface density. The gas-depletion time-scale in these SFGs grows from 0.5 Gyr at z ~ 2 to 1.5 Gyr at z ~ 0. The average corresponds to a fairly low star formation efficiency of 2 per cent per dynamical time. Because star formation depletion times are significantly smaller than the Hubble time at all redshifts sampled, star formation rates and gas fractions are set by the balance between gas accretion from the halo and stellar feedback. In contrast, very luminous and ultraluminous, gas-rich major mergers at both low and high z produce on average four to 10 times more far-infrared luminosity per unit gas mass. We show that only some fraction of this difference can be explained by uncertainties in gas mass or luminosity estimators; much of it must be intrinsic. A possible explanation is a top-heavy stellar mass function in the merging systems but the most likely interpretation is that the star formation relation is driven by global dynamical effects. For a given mass, the more compact merger systems produce stars more rapidly because their gas clouds are more compressed with shorter dynamical times, so that they churn more quickly through the available gas reservoir than the typical normal disc galaxies. When the dependence on galactic dynamical time-scale is

  14. [Lactational breast abscesses: Do we still need surgery?].

    PubMed

    Debord, M-P; Poirier, E; Delgado, H; Charlot, M; Colin, C; Raudrant, D; Golfier, F; Dupuis, O

    2016-03-01

    To show the effectiveness of ultrasound-guided puncture in the treatment of lactational breast abscess and identify its risk factors. Retrospective descriptive study at the CHU of Lyon-Sud from December 2007 to December 2013, including patients with lactational breast abscess confirmed on ultrasound and treated with antibiotics and analgesics. Realisation of ultrasound-guided needle under local anesthesia by the radiologist and washing the cavity with physiological serum. Forty patients had lactational abscesses at an average of 10 weeks post-partum. Thirty-four patients were treated by needle aspiration, of which 2 had first surgical drainage. The average size of the abscess was 41.2mm. The success rate of needle aspiration was 91.2%. No cases of recurrence were observed, however, there were 5 fistulisations. In all, 91.2% were treated on an outpatient basis. In 87.8% of cases, breastfeeding was continued on the healthy side and in 48.5% of cases on the affected side. The major risk factor for abscess was mastitis in 91.1% of cases. Ultrasound guidance of needle aspiration should be gold standard for the treatment of lactational breast abscesses to continue breastfeeding including the affected side. Copyright © 2015. Published by Elsevier Masson SAS.

  15. Conservative management of post-appendicectomy intra-abdominal abscesses.

    PubMed

    Ben Dhaou, Mahdi; Ghorbel, Sofiene; Chouikh, Taieb; Charieg, Awatef; Nouira, Faouzi; Ben Khalifa, Sonia; Khemakhem, Rachid; Jlidi, Said; Chaouachi, Béji

    2010-10-14

    Appendicitis is the most common abdominal inflammatory process in children which were sometimes followed by complications including intra-abdominal abscess. This later needs classically a surgical drainage. We evaluated the efficacy of antibiotic treatment and surgical drainage. Hospital records of children treated in our unit for intra-abdominal post appendectomy abscesses over a 6 years period were reviewed retrospectively. This study investigates a series of 14 children from 2 to 13 years of age with one or many abscesses after appendectomy, treated between 2002 and 2007. Seven underwent surgery and the others were treated with triple antibiotherapy. The two groups were comparable. For the 7 patients who receive medical treatment alone, it was considered efficient in 6 cases (85%) with clinical, biological and radiological recovery of the abscess. There was one failure (14%). The duration of hospitalization from the day of diagnosis of intra-abdominal abscess was approximately 10.28 days (range 7 to 14 days). In the other group, the efficacy of treatment was considered satisfactory in all cases. The duration of hospitalization was about 13 days (range: 9 to 20). Compared to surgical drainage, antibiotic management of intra-abdominal abscesses was a no invasive treatment with shorter hospitalization.

  16. Conservative management of post-appendicectomy intra-abdominal abscesses

    PubMed Central

    2010-01-01

    Purpose Appendicitis is the most common abdominal inflammatory process in children which were sometimes followed by complications including intra-abdominal abscess. This later needs classically a surgical drainage. We evaluated the efficacy of antibiotic treatment and surgical drainage. Methods Hospital records of children treated in our unit for intra-abdominal post appendectomy abscesses over a 6 years period were reviewed retrospectively. Results This study investigates a series of 14 children from 2 to 13 years of age with one or many abscesses after appendectomy, treated between 2002 and 2007. Seven underwent surgery and the others were treated with triple antibiotherapy. The two groups were comparable. For the 7 patients who receive medical treatment alone, it was considered efficient in 6 cases (85%) with clinical, biological and radiological recovery of the abscess. There was one failure (14%). The duration of hospitalization from the day of diagnosis of intra-abdominal abscess was approximately 10.28 days (range 7 to 14 days). In the other group, the efficacy of treatment was considered satisfactory in all cases. The duration of hospitalization was about 13 days (range: 9 to 20). Conclusion Compared to surgical drainage, antibiotic management of intra-abdominal abscesses was a no invasive treatment with shorter hospitalization. PMID:20946659

  17. Hypocholesterolemia in Patients with an Amebic Liver Abscess

    PubMed Central

    Flores, María S.; Obregón-Cárdenas, Adriana; Tamez, Eva; Rodríguez, Elba; Arévalo, Katiushka; Quintero, Isela; Tijerina, Rolando; Bosques, Francisco; Galán, Luis

    2014-01-01

    Background/Aims Many parasites induce changes in the lipid profiles of the host. Cholesterol increases the virulence of Entamoeba histolytica in animal models and in vitro culture. This study aimed to determine, in patients with an amebic liver abscess, the correlation between cholesterol and other features, such as the size and number of abscesses, standard hematological and serum chemistry profiles, liver tests, and duration of hospital stay. Methods A total of 108 patients with an amebic liver abscess and 140 clinically healthy volunteers were investigated. Cholesterol and triglycerides were measured in the sera. The data from medical observations and laboratory tests were obtained from the clinical records. Results A total of 93% of patients with an amebic liver abscess showed hypocholesterolemia not related to any of the studied parameters. Liver function tests correlated with the size of the abscess. The most severe cases of amebic liver disease or death were found in patients whose cholesterol levels continued to decrease despite receiving antiamebic treatment and hospital care. Conclusions Our results show that the hypocholesterolemia observed in patients with an amebic liver abscess is not related to any of the clinical and laboratory features analyzed. This is the first study relating hypocholesterolemia to severity of hepatic amebiasis. PMID:25071907

  18. Measurements of gas hydrate formation probability distributions on a quasi-free water droplet

    NASA Astrophysics Data System (ADS)

    Maeda, Nobuo

    2014-06-01

    A High Pressure Automated Lag Time Apparatus (HP-ALTA) can measure gas hydrate formation probability distributions from water in a glass sample cell. In an HP-ALTA gas hydrate formation originates near the edges of the sample cell and gas hydrate films subsequently grow across the water-guest gas interface. It would ideally be desirable to be able to measure gas hydrate formation probability distributions of a single water droplet or mist that is freely levitating in a guest gas, but this is technically challenging. The next best option is to let a water droplet sit on top of a denser, immiscible, inert, and wall-wetting hydrophobic liquid to avoid contact of a water droplet with the solid walls. Here we report the development of a second generation HP-ALTA which can measure gas hydrate formation probability distributions of a water droplet which sits on a perfluorocarbon oil in a container that is coated with 1H,1H,2H,2H-Perfluorodecyltriethoxysilane. It was found that the gas hydrate formation probability distributions of such a quasi-free water droplet were significantly lower than those of water in a glass sample cell.

  19. Modeling biogenic gas bubbles formation and migration in coarse sand

    NASA Astrophysics Data System (ADS)

    Ye, S.

    2011-12-01

    Shujun Ye Department of Hydrosciences, School of Earth Sciences and Engineering, Nanjing University, Nanjing 210093, China; sjye@nju.edu.cn Brent E. Sleep Department of Civil Engineering, University of Toronto, Toronto, ON, M5S 1A4 CANADA; sleep@ecf.utoronto.ca Methane gas generation in porous media was investigated in an anaerobic two-dimensional sand-filled cell. Inoculation of the lower portion of the cell with a methanogenic culture and addition of methanol to the bottom of the cell led to biomass growth and formation of a gas phase. The formation, migration, distribution and saturation of gases in the cell were visualized by the charge-coupled device (CCD) camera. Gas generated at the bottom of the cell in the biologically active zone moved upwards in discrete fingers, so that gas phase saturations (gas-filled fraction of void space) in the biologically active zone at the bottom of the cell did not exceed 40-50%, while gas accumulation at the top of the cell produced gas phase saturations as high as 80%. Macroscopic invasion percolation (MIP) at near pore scale[Glass, et al., 2001; Kueper and McWhorter, 1992]was used to model gas bubbles growth in porous media. The nonwetting phase migration pathway can be yielded directly by MIP. MIP was adopted to simulate the expansion, fragmentation, and mobilization of gas clusters in the cell. The production of gas, and gas phash saturations were simulated by a continuum model - compositional simulator (COMPSIM) [Sleep and Sykes, 1993]. So a combination of a continuum model and a MIP model was used to simulate the formation, fragmentation and migration of biogenic gas bubbles. Key words: biogenic gas; two dimensional; porous media; MIP; COMPSIM

  20. Fatal thalamic abscess secondary to dental infection.

    PubMed

    Basyuni, Shadi; Sharma, Valmiki; Santhanam, Vijay; Ferro, Ashley

    2015-12-17

    We present the case of poor neurological recovery and subsequent death secondary to a thalamic abscess in a 53-year-old man. This patient initially presented with sudden dysarthria and left hemiparesis while driving. Neuroimaging showed a multilobular abscess involving the right thalamus with oedema extending to the basal ganglionic region and brainstem. The source of the abscess was initially unknown and it required draining multiple times while the different causes were being explored. The patient's neurological state along with intubation made for a difficult and inconclusive oral examination. It was only after neuroimaging included tooth-bearing areas that it became evident that this patient had extensive periodontal disease with multiple areas of periapical radiolucencies. The patient underwent complete dental clearance alongside repeated drainage of the abscess. Despite initial postoperative improvement, the patient never recovered from the neurological damage and died 3 weeks later. 2015 BMJ Publishing Group Ltd.

  1. Abscess inside craniopharyngioma: diagnostic and management implications.

    PubMed

    Bhaisora, Kamlesh Singh; Prasad, Surya Nandan; Das, Kuntal Kanti; Lal, Hira

    2018-02-03

    Abscess inside the pituitary fossa is very rare. Such abscess can be primary, occurring in an otherwise healthy pituitary gland, or secondary, developing inside a diseased gland (ie, harbouring craniopharyngioma, Rathke's cleft cyst, etc). Secondary pituitary abscess inside a craniopharyngioma remains an extremely rare occurrence. Our literature search revealed only six such cases reported so far. In this report, we present the seventh case of craniopharyngioma with abscess in a 38-year-old woman. We describe the uniqueness of the clinical presentation of our case, the radiological pointers to the possible diagnosis and the management issues in our patient. A review of literature is also included to provide a comprehensive picture of this rare condition to the readers. © BMJ Publishing Group Ltd (unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

  2. Different actions of deferoxamine and iron on Ga-67 abscess detection in rats

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Oberhensli, R.D.; Mueller, R.M.; Fridrich, R.

    1984-06-01

    The contrast-enhancing properties of iron (Fe) and deferoxamine (DFO) in abscess imaging with Ga-67 citrate were compared in rats bearing turpentine-induced abscesses. Iron administration shifted Ga-67 from plasma into tissues such as muscle and fat. As a result, the abscess-to-plasma ratio increased whereas the abscess-to-muscle ratio decreased. DFO enhanced the abscess-to-muscle and abscess-to-plasma ratios by increasing urinary Ga-67 excretion. The authors conclude that abscess imaging with Ga-67 citrate may be improved by administration of (a) Fe for detection of abscesses masked by blood activity, or (b) DFO for detection of abscesses surrounded by muscle tissue.

  3. Bacteroides endodontalis and other black-pigmented Bacteroides species in odontogenic abscesses.

    PubMed Central

    van Winkelhoff, A J; Carlee, A W; de Graaff, J

    1985-01-01

    Twenty-eight odontogenic abscesses were examined for the presence of black-pigmented Bacteroides spp. Of the 28 samples, 26 were found to contain one or more species of black-pigmented Bacteroides. Abscesses were divided into three categories according to the tissue of origin: endodontal, periodontal, and pericoronal. Four abscesses which developed after extraction were also examined. It was found that Bacteroides endodontalis, a newly described species of asaccharolytic black-pigmented Bacteroides, was isolated almost exclusively from periapical abscesses of endodontal origin. B. intermedius proved to be the most frequently isolated species in all of the samples. B. gingivalis was present in all of the periodontal abscesses studied, as well as in two endodontal abscesses. B. melaninogenicus was recovered once from a pericoronal abscess. Precautions for the isolation of B. endodontalis are discussed. PMID:4030089

  4. High-resolution MRI in detecting subareolar breast abscess.

    PubMed

    Fu, Peifen; Kurihara, Yasuyuki; Kanemaki, Yoshihide; Okamoto, Kyoko; Nakajima, Yasuo; Fukuda, Mamoru; Maeda, Ichiro

    2007-06-01

    Because subareolar breast abscess has a high recurrence rate, a more effective imaging technique is needed to comprehensively visualize the lesions and guide surgery. We performed a high-resolution MRI technique using a microscopy coil to reveal the characteristics and extent of subareolar breast abscess. High-resolution MRI has potential diagnostic value in subareolar breast abscess. This technique can be used to guide surgery with the aim of reducing the recurrence rate.

  5. [Liver Abscess Secondary to Perforation after Duodenal Endoscopic Resection].

    PubMed

    Choi, Seung Ho; Kim, Su Jin; Kang, Dae Hwan; Kim, Hyung Wook; Choi, Cheol Woong; Kim, Tae Un; Lee, Jeong Seok; Ko, Ji Hwan

    2018-05-25

    Duodenal perforation is a complication of endoscopic mucosal resection. Liver abscess secondary to iatrogenic perforation is extremely rare. A 43-year-old female visited the hospital to remove a sub-epithelial tumor on the duodenal bulb. After endoscopic mucosal resection with band ligation, duodenal perforation occurred. Endoscopic closure was performed successfully using a clipping device to manage duodenal perforation. After 4 weeks, the patient visited our outpatient clinic due to abdominal pain and fever. Abdominal computed tomography showed liver abscess that involved segment three. Liver abscess was resolved with a 10-week antibiotic treatment. To the best of our knowledge, no case of liver abscess secondary to duodenal perforation by endoscopic resection was reported to date in Korea. Here, we report a case of liver abscess caused by a duodenal perforation after endoscopic mucosal resection.

  6. Lung abscess predicts the surgical outcome in patients with pleural empyema.

    PubMed

    Huang, Hung-Che; Chen, Heng-Chung; Fang, Hsin-Yuan; Lin, Yi-Chieh; Wu, Chin-Yen; Cheng, Ching-Yuan

    2010-10-20

    Most cases of pleural empyema are caused by pulmonary infections, which are usually combined with pneumonia or lung abscess. The mortality of patients with pleural empyema remains high (up to 20%). It also contributes to higher hospital costs and longer hospital stays. We studied pleural empyema with combined lung abscess to determine if abscess was associated with mortality. From January 2004 to December 2006, we retrospectively reviewed 259 patients diagnosed with pleural empyema who received thoracscopic decortications of the pleura in a single medical center. We evaluated their clinical data and analyzed their chest computed tomography scans. Outcomes of pleural empyema were compared between groups with and without lung abscess. Twenty-two pleural empyema patients had lung abscesses. Clinical data showed significantly higher incidences in the lung abscess group of pre-operative leukocytosis, need for an intensive care unit stay and mortality. Patients with pleural empyema and lung abscess have higher intensive care unit admission rate, higher mortality during 30 days and overall mortality than patients with pleural empyema. The odds ratio of lung abscess is 4.685. Physician shall pay more attention on high risk patient of lung abscess for early detection and management.

  7. Dynamics of albumin synthetic response to intra-abdominal abscess in patients with gastrointestinal fistula.

    PubMed

    Zhou, Bo; Ren, Jianan; Han, Gang; Chen, Yu; A, Jiye; Gu, Guosheng; Chen, Jun; Wang, Gefei; Li, Jieshou

    2014-04-01

    Low serum albumin concentration is a predictor of failure of source control for intra-abdominal infection. However, data on dynamics of albumin synthesis in these patients and to what extent these changes contribute to hypoalbuminemia are relatively scarce. We investigated in a group of patients with gastrointestinal fistula the dynamic response of liver albumin synthesis to intra-abdominal abscess and how these related to hypoalbuminemia and circulating endocrine hormone profiles. Eight gastrointestinal fistula patients scheduled to undergo percutaneous abscess sump drainage were enrolled prospectively to measure albumin synthesis rates at different stages of the inflammatory response (immediately after diagnosis and 7 d following sump drainage when clinical signs of intra-abdominal sepsis had been eradicated). Eight age-, sex-, and body mass index-matched intestinal fistula patients were studied as control patients. Consecutive arterial blood samples were drawn during a primed-constant infusion (priming dose: 4 micromol·kg(-1), infusion rate: 6 micromol·kg(-1)·min(-1)) to determine the incorporation rate of L-[ring-(2)H5]-phenylalanine directly into plasma albumin using gas chromatography/mass spectrometry analysis. Patients suffering from intra-abdominal infection had reduced plasma albumin and total plasma protein concentrations, compared with control patients. Albumin fractional synthesis rates in patients with intra-abdominal abscess were decreased, compared with those in the control group. When the source of infection was removed, albumin synthesis rates returned to control values, whereas albumin concentrations did not differ significantly from the corresponding concentrations in control subjects and patients with intra-abdominal abscess. Despite nutritional intervention, albumin synthesis rate is decreased in intestinal fistula patients with intra-abdominal abscess; albumin synthesis returns to control values during convalescence.

  8. Dynamics of Albumin Synthetic Response to Intra-Abdominal Abscess in Patients with Gastrointestinal Fistula

    PubMed Central

    Zhou, Bo; Han, Gang; Chen, Yu; A, Jiye; Gu, Guosheng; Chen, Jun; Wang, Gefei; Li, Jieshou

    2014-01-01

    Abstract Background: Low serum albumin concentration is a predictor of failure of source control for intra-abdominal infection. However, data on dynamics of albumin synthesis in these patients and to what extent these changes contribute to hypoalbuminemia are relatively scarce. We investigated in a group of patients with gastrointestinal fistula the dynamic response of liver albumin synthesis to intra-abdominal abscess and how these related to hypoalbuminemia and circulating endocrine hormone profiles. Methods: Eight gastrointestinal fistula patients scheduled to undergo percutaneous abscess sump drainage were enrolled prospectively to measure albumin synthesis rates at different stages of the inflammatory response (immediately after diagnosis and 7 d following sump drainage when clinical signs of intra-abdominal sepsis had been eradicated). Eight age-, sex-, and body mass index–matched intestinal fistula patients were studied as control patients. Consecutive arterial blood samples were drawn during a primed-constant infusion (priming dose: 4 micromol·kg−1, infusion rate: 6 micromol·kg−1·min−1) to determine the incorporation rate of L-[ring-2H5]-phenylalanine directly into plasma albumin using gas chromatography/mass spectrometry analysis. Results: Patients suffering from intra-abdominal infection had reduced plasma albumin and total plasma protein concentrations, compared with control patients. Albumin fractional synthesis rates in patients with intra-abdominal abscess were decreased, compared with those in the control group. When the source of infection was removed, albumin synthesis rates returned to control values, whereas albumin concentrations did not differ significantly from the corresponding concentrations in control subjects and patients with intra-abdominal abscess. Conclusion: Despite nutritional intervention, albumin synthesis rate is decreased in intestinal fistula patients with intra-abdominal abscess; albumin synthesis returns to

  9. Post-partum pyogenic abscess containing Ascaris lumbricoides

    PubMed Central

    Hamid, Raashid; Wani, Sajad; Ahmad, Nawab; Akhter, Afrozah

    2013-01-01

    We report an unusual case of multiple pyogenic liver abscesses containing Ascariasis lumbricoides in a 35-year-old post-partum female who had delivered 1 month back. Open drainage of liver abscess along with liver worm was done. Patient did well post-operatively. PMID:23961448

  10. Posttraumatic venous gas in the liver - a case report and review of the current literature.

    PubMed

    Fahrner, René; Rauchfuss, Falk; Scheuerlein, Hubert; Settmacher, Utz

    2018-03-02

    There are numerous causes of hepatic gas formation that range from serious pathologies to incidental findings, including mesenteric infarction, liver abscess, inflammatory bowel disease or minimally invasive hepatic interventions. We report a case of a 50-year-old man who was admitted to the emergency room after a car accident. The clinical examination and further diagnostics revealed a craniocerebral injury with a fracture of the skull, concomitant soft tissue lesions and subarachnoidal bleeding. Furthermore, a blunt thoracic trauma with hemopneumothorax due to rib fractures was treated with a chest tube. No obvious abdominal pathology was seen. While in the operating theatre for the surgical revision of the cranial soft tissue lesions, a femoral venous catheter was inserted without any complications. A routine ultrasound of the abdomen six hours after the trauma revealed unclear hepatic gas formation. A contrast-enhanced computer tomography (CT) scan of the abdomen was performed, and the gas formation was found to be localized within the left hepatic vein. Afterwards, there was no specific treatment of the hepatic venous gas formation, as no alterations of liver function or liver enzymes were seen. The further course of the patient was uneventful regarding the gas formation in the liver, and another ultrasound two days later revealed no further gas in the liver. The placement of a femoral venous catheter is a risk factor for gas formation in liver veins. No further treatment is needed in cases with stable liver function. To rule out serious pathologies, diagnostic findings (e.g., ultrasound, CT), clinical history and underlying diseases need to be analyzed carefully after the detection of intrahepatic gas formation. With contrast-enhanced CT, the localization of the gas and its potential causes might be detectable.

  11. Human cytomegalovirus and Epstein-Barr virus type 1 in periodontal abscesses.

    PubMed

    Saygun, I; Yapar, M; Ozdemir, A; Kubar, A; Slots, J

    2004-04-01

    Recent studies have linked herpesviruses to severe types of periodontal disease, but no information exists on their relationship to periodontal abscesses. The present study determined the presence of human cytomegalovirus (HCMV) and Epstein-Barr virus type 1 (EBV-1) in periodontal abscesses and the effect of treatment on the subgingival occurrence of these viruses. Eighteen adults with periodontal abscesses participated in the study. Subgingival samples were collected from each patient with sterile curettes from an abscess-affected site and a healthy control site. HCMV and EBV-1 were identified by polymerase chain reaction at the time of the abscess and at 4 months after surgical and systemic doxycycline therapy. HCMV was detected in 66.7% of periodontal abscess sites and in 5.6% of healthy sites (P=0.002). EBV-1 occurred in 72.2% of abscess sites but not in any healthy site (P<0.001). HCMV and EBV-1 co-infection was identified in 55.6% of the abscess sites. Posttreatment, HCMV and EBV-1 were not found in any study site. HCMV and EBV-1 genomes are commonly found in periodontal abscesses. These data favor a model in which a herpesvirus infection of the periodontium impairs the host defense and serves as a platform for the entrance of bacterial pathogens into gingival tissue with subsequent risk of abscess development.

  12. [Interventional Radiology for Intra-Abdominal Abscess after Gastrectomy].

    PubMed

    Matsuura, Norihiro; Fujitani, Kazumasa; Kawada, Junji; Nishikawa, Kazuhiro; Nakatsuka, Rie; Miyazaki, Susumu; Danno, Katsuki; Motoori, Masaaki; Kubota, Masaru; Matsuda, Chu; Yoshida, Hiroshi; Iwase, Kazuhiro; Tanaka, Yasuhiro

    2015-11-01

    Approximately 20% of patients develop some complications after gastrectomy. These complications should be treated appropriately to achieve a positive outcome. The records of 6 patients with postoperative intra-abdominal abscesses treated with interventional radiology (IVR) were analyzed. The cause of abscess was anastomotic leakage in 4 patients and contaminated surgery after gastric perforation in 2 patients. Intra-abdominal abscesses were detected on postoperative day 12 (median), and an IVR-guided drainage tube was inserted with a median interval of 1 day. The drainage tube was kept in place for 26 days (median), and patients were discharged 6.5 days (median) after drainage tube removal. No patients were converted to open surgery. Early IVR-guided drainage was essential and effective for intra-abdominal abscess treatment after gastrectomy.

  13. Aspergillus spinal epidural abscess.

    PubMed

    Gupta, P K; Mahapatra, A K; Gaind, R; Bhandari, S; Musa, M M; Lad, S D

    2001-07-01

    Spinal abscess due to Aspergillus is rare. A young boy with chronic granulomatous disease and aspergillosis of the rib had been treated with antifungal treatment 3 months earlier. The patient presented with a brief history of progressive paraparesis. Imaging showed D9--11 vertebral involvement and destruction of the D10 vertebral body with angulation and a large dorsally placed, multiloculated epidural abscess extending from D6 to L2. There was also extensive granulation anterior to and on either side of the vertebrae. The patient underwent extensive laminectomy and decompression of all the loculi and partial removal of the granulation tissue. Aggressive medical treatment was started. The authors recommend an aggressive surgical and medical approach in such cases of disseminated invasive aspergillosis, even though the result may not be very satisfactory. This report discusses the full clinical profile and management of Aspergillus spinal epidural abscess and emphasizes the need to follow up these cases to detect recurrence and new lesions, even if the patients are on adequate medical treatment. In spite of all efforts, high morbidity and mortality is common in such patients. Copyright 2001 S. Karger AG, Basel

  14. Posterior nasal septal abscess in a healthy adult patient.

    PubMed

    George, A; Smith, W K; Kumar, S; Pfleiderer, A G

    2008-12-01

    We report an extremely rare case of bilateral posterior nasal septal abscess in an otherwise healthy adult patient. Case report and a review of the world literature concerning atraumatic nasal septal abscess and its management. The development of an atraumatic nasal septal abscess is rare, but it has been reported in association with acute sinusitis, in patients with poor immunity and in children. The presentation, clinical course and treatment are discussed in the presented patient. To our knowledge, this is the first report in the world literature of a bilateral posterior septal abscess associated with acute sinusitis in an otherwise healthy adult.

  15. Radiative Hydrodynamics and the Formation of Gas Giant Planets

    NASA Astrophysics Data System (ADS)

    Durisen, Richard H.

    2009-05-01

    Gas giant planets undoubtedly form from the orbiting gas and dust disks commonly observed around young stars, and there are two principal mechanisms proposed for how this may occur. The core accretion plus gas capture model argues that a solid core forms first and then accretes gas from the surrounding disk once the core becomes massive enough (about 10 Earth masses). The gas accumulation process is comparatively slow but becomes hydrodynamic at later times. The disk instability model alternatively suggests that gas giant planet formation is initiated by gas-phase gravitational instabilities (GIs) that fragment protoplanetary disks into bound gaseous protoplanets rapidly, on disk orbit period time scales. Solid cores then form more slowly by accretion of solid planetesimals and settling. The overall formation time scales for these two mechanisms can differ by orders of magnitude. Both involve multidimensional hydrodynamic flows at some phase, late in the process for core accretion and early on for disk instability. The ability of cores to accrete gas and the ability of GIs to produce bound clumps depend on how rapidly gas can lose energy by radiation. This regulatory process, while important for controlling the time scale for core accretion plus gas capture, turns out to be absolutely critical for disk instability to work at all. For this reason, I will focus in my talk on the use of radiation hydrodynamics simulations to determine whether and where disk instability can actually form gas giant planets in disks. Results remain controversial, but simulations by several different research groups support analytic arguments that disk instability leading to fragmentation probably cannot occur in disks around Sun-like stars at orbit radii of 10's of Earth-Sun distances or less. On the other hand, very recent simulations suggest that very young, rapidly accreting disks with much larger radii (100's of times the Sun-Earth distance) can indeed readily fragment by disk

  16. Peritonsillar abscess and cellulitis and their relation to a positive antigen detection test for streptococcal infection.

    PubMed

    Risberg, Stefan; Engfeldt, Peter; Hugosson, Svante

    2010-10-01

    The microbiological cause of peritonsillar abscess and the role of group A β-haemolytic Streptococcus (GAS) are unclear. We performed a retrospective study at the ear, nose and throat clinic (ENT) of Orebro University Hospital, Sweden, and included 376 events of peritonsillitis between 2002 and 2004. We determined if the patients had visited a primary healthcare centre (PHCC) within 30 days prior to inclusion. The results of the rapid antigen detection test for GAS (Strep A) taken at the PHCC were compared with the occurrence of peritonsillar abscess (PTA) and peritonsillar cellulitis (PTC). A Strep A test was performed in 61% (229/376) of the events studied. Strep A was positive in 22% of PTA events and in 35% of PTC events (p = 0.036). Of 48,000 Strep A tests taken in primary healthcare, mainly for sore throat, 22% were positive. We examined the relationship between age, the incidence of PTA, and positive Strep A tests. We also determined if there was a monthly correlation between number of positive Strep A tests and number of PTA events. We found no significant correlations. In conclusion, our findings indicate that GAS does not play a major role in the development of PTA/PTC.

  17. Primary tubercular abscess of the breast – an unusual entity

    PubMed Central

    Gupta, R; Singal, RP; Gupta, A; Singal, S; Shahi, SR; Singal, R

    2012-01-01

    Primary breast tuberculosis manifested as abscess is a rare entity. We are reporting a case of primary breast tuberculosis, which presented as breast abscess. Abscess was drained and tissue sent for histopathology. To our surprise, diagnosis came as breast tuberculosis. Aspiration cytology was not done, as it is not a routine test for abscess cases. Patient was put on anti- tubercular drugs. In the follow-up of 6 months, she was asymptomatic and advised to continue medicine. PMID:22574095

  18. Genomewide association study of liver abscess in beef cattle.

    PubMed

    Keele, J W; Kuehn, L A; McDaneld, T G; Tait, R G; Jones, S A; Keel, B N; Snelling, W M

    2016-02-01

    Fourteen percent of U.S. cattle slaughtered in 2011 had liver abscesses, resulting in reduced carcass weight, quality, and value. Liver abscesses can result from a common bacterial cause, , which inhabits rumen lesions caused by acidosis and subsequently escapes into the blood stream, is filtered by the liver, and causes abscesses in the liver. Our aim was to identify SNP associated with liver abscesses in beef cattle. We used lung samples as a DNA source because they have low economic value, they have abundant DNA, and we had unrestricted access to sample them. We collected 2,304 lung samples from a beef processing plant: 1,152 from animals with liver abscess and 1,152 from animals without liver abscess. Lung tissue from pairs of animals, 1 with abscesses and another without, were collected from near one another on the viscera table to ensure that pairs of phenotypically extreme animals came from the same lot. Within each phenotype (abscess or no abscess), cattle were pooled by slaughter sequence into 12 pools of 96 cattle for each phenotype for a total of 24 pools. The pools were constructed by equal volume of frozen lung tissue from each animal. The DNA needed to allelotype each pool was then extracted from pooled lung tissue and the BovineHD Bead Array (777,962 SNP) was run on all 24 pools. Total intensity (TI), an indicator of copy number variants, was the sum of intensities from red and green dyes. Pooling allele frequency (PAF) was red dye intensity divided TI. Total intensity and PAF were weighted by the inverse of their respective genomic covariance matrices computed over all SNP across the genome. A false discovery rate ≤ 5% was achieved for 15 SNP for PAF and 20 SNP for TI. Genes within 50 kbp from significant SNP were in diverse pathways including maintenance of pH homeostasis in the gastrointestinal tract, maintain immune defenses in the liver, migration of leukocytes from the blood into infected tissues, transport of glutamine into the kidney in

  19. Lung abscess predicts the surgical outcome in patients with pleural empyema

    PubMed Central

    2010-01-01

    Objectives Most cases of pleural empyema are caused by pulmonary infections, which are usually combined with pneumonia or lung abscess. The mortality of patients with pleural empyema remains high (up to 20%). It also contributes to higher hospital costs and longer hospital stays. We studied pleural empyema with combined lung abscess to determine if abscess was associated with mortality. Methods From January 2004 to December 2006, we retrospectively reviewed 259 patients diagnosed with pleural empyema who received thoracscopic decortications of the pleura in a single medical center. We evaluated their clinical data and analyzed their chest computed tomography scans. Outcomes of pleural empyema were compared between groups with and without lung abscess. Results Twenty-two pleural empyema patients had lung abscesses. Clinical data showed significantly higher incidences in the lung abscess group of pre-operative leukocytosis, need for an intensive care unit stay and mortality. Conclusion Patients with pleural empyema and lung abscess have higher intensive care unit admission rate, higher mortality during 30 days and overall mortality than patients with pleural empyema. The odds ratio of lung abscess is 4.685. Physician shall pay more attention on high risk patient of lung abscess for early detection and management. PMID:20961413

  20. Zolpidem Use Associated With Increased Risk of Pyogenic Liver Abscess

    PubMed Central

    Liao, Kuan-Fu; Lin, Cheng-Li; Lai, Shih-Wei; Chen, Wen-Chi

    2015-01-01

    Abstract The purpose of this study was to explore the association between zolpidem use and pyogenic liver abscess in Taiwan. This was a population-based case-control study using the database of the Taiwan National Health Insurance Program since 2000 to 2011. We identified 1325 patients aged 20 to 84 years with the first-attack of pyogenic liver abscess as the cases, and 5082 patients without pyogenic liver abscess matched with sex, age, comorbidities, and index year of hospitalization for pyogenic liver abscess as the controls. Patients whose last remaining 1 tablet for zolpidem was noted ≤7 days before the date of admission for pyogenic liver abscess were defined as current use of zolpidem. Patients whose last remaining 1 tablet for zolpidem was noted >7 days before the date of admission for pyogenic liver abscess were defined as late use of zolpidem. Patients who never received 1 prescription for zolpidem were defined as never use of zolpidem. A multivariable unconditional logistic regression model was used to measure the odds ratio (OR) and 95% confidence interval (CI) to explore the association between zolpidem use and pyogenic liver abscess. After adjustment for possible confounding variables, the adjusted OR of pyogenic liver abscess was 3.89 for patients with current use of zolpidem (95% CI 2.89, 5.23), when compared with those with never use of zolpidem. The adjusted OR decreased to 0.85 for those with late use of zolpidem (95% CI 0.70, 1.03), but without statistical significance. Current use of zolpidem is associated with the increased risk of pyogenic liver abscess. Physicians should take the risk of pyogenic liver abscess into account when prescribing zolpidem. PMID:26266369

  1. The periodontal abscess (I). Clinical and microbiological findings.

    PubMed

    Herrera, D; Roldán, S; González, I; Sanz, M

    2000-06-01

    Little information is available regarding the diagnosis and microbiology of periodontal abscesses. The aim of this descriptive clinical and microbiological study was to provide more information in order to help in the characterisation of the periodontal abscess associated to periodontitis. 29 consecutive patients with a periodontal abscess were studied by the assessment of clinical variables, including both subjective (pain, edema, redness and swelling) and objective (bleeding on probing, suppuration, probing pocket depth, tooth mobility and cervical lymphadenopathy) parameters. Microbiological samples were taken for anaerobic microbiology and processed by means of culture. Systemic involvement was also studied through the analysis of blood and urine samples using conventional laboratory standards. 62% of the abscesses affected untreated periodontitis patients, and 69% were associated with a molar tooth. More than 75% of the abscesses had moderate-severe scores related to edema, redness and swelling, and 90% of the patients reported pain. Bleeding occurred in all abscesses, while suppuration on sampling was detected in 66%. Mean associated pocket depth was 7.28 mm, and 79% of teeth presented some degree of mobility. Cervical lymphadenopathy was seen in 10% of patients, while elevated leucocyte counts were observed in 31.6%. The absolute number of neutrophils was elevated in 42% of the patients. High prevalences of putative periodontal pathogens were found, including Fusobacterium nucleatum, Peptostreptococcus micros, Porphyromonas gingivalis, Prevotella intermedia and Bacteroides forsythus. The periodontal abscess has clear clinical characteristics and is usually associated with severe periodontal destruction. This condition may cause systemic involvement and the lesion generally has a large bacterial mass with a high prevalence of well-recognised periodontal pathogens.

  2. Successful percutaneous transperineal drainage of a large prostatic abscess.

    PubMed

    Mason, Barry M; Hakimi, A Ari; Clerkin, Kevin J; Silva, Jose V

    2010-12-01

    We present a case of an 83-year-old man with septic shock secondary to an extremely large prostatic abscess. Antibiotics and transperineal percutaneous drainage with a suprapubic-type Malecot catheter successfully treated the abscess. Follow-up images reveal resolution of the abscess. Broad-spectrum antibiotics and drainage permitted a full recovery. Copyright © 2010 Elsevier Inc. All rights reserved.

  3. [Treatment of orbital abscesses and phlegmon in dogs and cats].

    PubMed

    Rühli, M B; Spiess, B M

    1995-08-01

    A diagnosis of orbital cellulitis or abscess was made in 13 dogs and four cats over the past five years. A foreign body was found in three of these cases. In five cases pasteurella spp. was isolated. In 15 of these cases the abscess was drained surgically. One dog was permanently blind due to inadequate surgical drainage of the abscess. In the remaining cases healing was uneventful. The surgical and medical therapy of orbital abscesses is illustrated by an exemplary case.

  4. Brucellar breast abscess.

    PubMed

    Erdem, G; Karakas, H M; Yetkin, F; Alkan, A; Firat, A K; Kahraman, B

    2006-08-01

    Brucellosis is an endemic disease seen in many countries. It may affect different organ systems. Brucellar breast abscess is a rare entity. We report the radiological findings of breast abscess due to brucella. A 63-year-old female was investigated with mammography, ultrasonography, magnetic resonance imaging (MRI), and magnetic resonance spectroscopy (MRS). A mass measuring 25 x 20 x 15 mm was detected in the left breast on mammography and ultrasonography. The mass was homogenously hyperintense on T1- and T2-weighted MRI images. On contrast-enhanced T1-weighted images, peripheral capsular enhancement was found. MR spectroscopic analysis of the mass revealed elevated lipid and acetate peaks. The diagnosis was provided by fine needle aspiration biopsy and specimen culture. The lesion had diminished in size after 12 months' treatment with combined tetracycline and rifampicine.

  5. Retropharyngeal abscess with mediastinal extension in an infant--still existing?

    PubMed

    Bakshi, Rijuneeta; Grover, Gogia

    2009-03-01

    The objective of the present case report was to note that despite the low incidence of retropharyngeal abscess in the present antibiotic era, children, especially infants, can develop this condition. If early diagnosis is missed, the abscess may extend into the mediastinum and can be life threatening. Case reports of mediastinal abscess in the past literature along with the current case. The present case was successfully managed by surgical drainage of the abscess via transcervical route along with intravenous antibiotic therapy, and the recovery was uneventful. Although the incidence of retropharyngeal abscess has declined with the widespread use of antibiotics, the presenting symptom can be overlooked in a pediatric population, especially infants, and can extend along the fascial planes to the mediastinum when the recovery becomes difficult. The present report is an effort to draw attention to this life-threatening complication of retropharyngeal abscess, emphasize the role of early diagnosis, and prompt surgical management.

  6. Surgical management of an abdominal abscess in a Malayan tapir.

    PubMed

    Lambeth, R R; Dart, A J; Vogelnest, L; Dart, C M; Hodgson, D R

    1998-10-01

    A captive Malayan tapir was observed to have inappetence, weight loss, signs of depression, mild dehydration and diarrhoea. Haematological and serum biochemical tests showed anaemia, hypoproteinaemia, hyperfibrinogenaemia and neutrophilia with a left shift. Ultrasonic examination of the abdomen under anaesthesia revealed a well-encapsulated abscess. The abscess was marsupialised to the ventral body wall. Culture of the pus produced a mixed bacterial growth. Antimicrobial therapy was based on bacterial sensitivity results. Follow-up ultrasonic examinations showed resolution of the abscess. Ninety-one days after surgery the tapir began regurgitating food and water. An abscess originating from the stomach and occluding the lumen of the duodenum was identified at surgery. The abscess ruptured during surgical manipulations and the tapir was euthanased.

  7. Computerized tomographic findings of hepatic fascioliasis compared with melioidosis-caused liver abscesses.

    PubMed

    Chamadol, Nittaya; Laopaiboon, Vallop; Techasatian, Pennapa; Sukeepaisanjaroen, Wattana; Sripanuskul, Anan

    2010-07-01

    To compare the computerized tomographic (CT) findings of hepatic fascioliasis (HF) vs. melioidosis-caused liver (ML) abscesses. CT images of 15 patients with hepatic fascioliasis (HF) and 16 patients with melioidosis-caused liver (ML) abscesses were retrospectively reviewed. The authors evaluated and compared HF and ML abscesses (by chi2 and Fisher exact tests) vis-a-vis their location of liver involvement, size, shape, number margins, enhancement patterns, subcapsular lesions, internal architecture, dilatation of intrahepatic bile duct and combination with splenic abscesses. Fourteen HF patients had only liver abscesses and 1 had combined liver and splenic abscesses. Four ML patients had liver abscesses alone while 12 had combined liver and splenic abscesses (p = 0.000). Eight of the 15 HF (53.3%) and 2 of the 16 ML (12.5%) patients had subcapsular lesions (p = 0.019). The liver abscesses were round or oval with linear tracts in 8 of the 15 HF (53.3%) and none of the ML patients (p = 0.001). Between the respective HF and ML patients, there was a significant difference in those with round shaped in ML (p = 0.008), multiple and conglomerately distributed in HF (p = 0.050), multiple and discretely distributed in ML (p = 0.001) no (or minimal) peripheral contrast enhancement in HF (p = 0.011) and moderate or mark peripheral enhancement in ML (p = 0.011). The CT findings of liver abscesses that helped to differentiate hepatic fascioliasis from melioidosis liver abscesses were: their number shape, enhancement pattern, presence of subcapsular lesion (s) and co-occurrence with splenic abscesses. The diagnosis of hepatic fascioliasis by CT is suggested when the following characteristics were seen: (1) multiple, small round or oval (with linear tracts) conglomerates presenting as hypodense lesions; (2) no (or minimal) peripheral contrast enhancement; (3) subcapsular lesions; or (4) less frequent co-occurrence with splenic abscesses.

  8. A method to predict equilibrium conditions of gas hydrate formation in porous media

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Clarke, M.A.; Pooladi-Darvish, M.; Bishnoi, P.R.

    1999-06-01

    In the petroleum industry, it is desirable to avoid the formation of gas hydrates. When gas hydrates form, they tend to agglomerate and block pipelines and process equipment. However, naturally occurring gas hydrates that form in the permafrost region or in deep oceans represent a vast untouched natural gas reserve. Although the exact amount of gas in the hydrate form is not known, it is believed to be comparable to the known amount of gas in the free state. Numerous methods for the recovery of natural gas from hydrate fields have been proposed. These techniques include thermal decomposition, depressurization, andmore » chemical injection. To fully exploit hydrate reserves, it will be necessary to know the decomposition/formation conditions of the gas hydrate in porous media. A predictive model has been developed to determine the incipient hydrate formation conditions in porous media. The only additional information that is needed to determine the incipient hydrate formation conditions is the pore radius, surface energy per unit area, and wetting angle. It was found that the model performed well in predicting the experimental data of Handa and Stupin.« less

  9. Bar formation as driver of gas inflows in isolated disc galaxies

    NASA Astrophysics Data System (ADS)

    Fanali, R.; Dotti, M.; Fiacconi, D.; Haardt, F.

    2015-12-01

    Stellar bars are a common feature in massive disc galaxies. On a theoretical ground, the response of gas to a bar is generally thought to cause nuclear starbursts and, possibly, AGN activity once the perturbed gas reaches the central supermassive black hole. By means of high-resolution numerical simulations, we detail the purely dynamical effects that a forming bar exerts on the gas of an isolated disc galaxy. The galaxy is initially unstable to the formation of non-axisymmetric structures, and within ˜1 Gyr it develops spiral arms that eventually evolve into a central stellar bar on kpc scale. A first major episode of gas inflow occurs during the formation of the spiral arms while at later times, when the stellar bar is establishing, a low-density region is carved between the bar corotational and inner Lindblad resonance radii. The development of such `dead zone' inhibits further massive gas inflows. Indeed, the gas inflow reaches its maximum during the relatively fast bar-formation phase and not, as often assumed, when the bar is fully formed. We conclude that the low efficiency of long-lived, evolved bars in driving gas towards galactic nuclei is the reason why observational studies have failed to establish an indisputable link between bars and AGNs. On the other hand, the high efficiency in driving strong gas inflows of the intrinsically transient process of bar formation suggests that the importance of bars as drivers of AGN activity in disc galaxies has been overlooked so far. We finally prove that our conclusions are robust against different numerical implementations of the hydrodynamics routinely used in galaxy evolution studies.

  10. [Aseptic cutaneous breast abscesses associated with ulcerative colitis].

    PubMed

    Sallé de Chou, C; Ortonne, N; Hivelin, M; Wolkenstein, P; Chosidow, O; Valeyrie-Allanore, L

    2016-02-01

    Inflammatory bowel diseases are associated with a broad range of cutaneous lesions. Herein we report the first case of aseptic skin abscesses associated with ulcerative colitis. Since March 2008, a 40-year-old woman presented with bilateral mammary abscesses, relapsing despite repeated antibiotic treatment. She was followed for ulcerative colitis diagnosed in 2011 by means of a rectal biopsy. Despite four surgical procedures, there was no improvement in her mammary abscesses and bilateral mastectomy was then proposed because of the persistent symptoms. Her general state of health remained stable. Clinically, there were bilateral inflammatory nodes with fistulae and pus. These lesions were extremely painful. Mild inflammatory syndrome was noted, but the immunological tests revealed nothing of note. Bacteriological, parasitological and mycological tests on biopsy specimens were negative. Histological examination of a surgical biopsy revealed lymphoplasmacytic infiltration of the dermis and subcutis with altered polymorphonuclear cells and epithelioid granuloma. The CT-scan showed no other remote lesions. The final diagnosis was cutaneous aseptic abscess syndrome associated with ulcerative colitis. Colchicine 1mg/day was initiated and resulted in regression of the skin lesions, with complete remission at one year of follow-up. Aseptic abscess syndrome must be considered in the event of recurrent aseptic cutaneous abscesses which may be associated with inflammatory bowel disease. Surgery should be avoided and treatment should be based on suitable drug therapy. Copyright © 2016. Published by Elsevier Masson SAS.

  11. Orthodontic elastic separator-induced periodontal abscess: a case report.

    PubMed

    Becker, Talia; Neronov, Alex

    2012-01-01

    Aim. Orthodontic elastic bands were proposed as being the source of gingival abscesses that can rapidly lead to bone loss and teeth exfoliation. We report an adolescent, otherwise, healthy patient whose periodontal status was sound. Shortly after undergoing preparations for orthodontic treatment consisting of orthodontic separators, he presented with a periodontal abscess for which there was no apparent etiology. A non-orthoradial X-ray was inconclusive, but an appropriate one revealed a subgingival orthodontic separator as the cause of the abscess. Removal of the separator and thorough scaling led to complete resolution of the abscess, but there was already residual mild damage to the alveolar bone. Summary. Failure to use appropriate imaging to reveal the cause of gingival abscesses can result in the delay of implementing treatment and halting irreversible alveolar bone loss. An inflammatory process restricted to the gingiva and refractive to conventional therapy should raise the possibility of a foreign body etiology.

  12. Orthodontic Elastic Separator-Induced Periodontal Abscess: A Case Report

    PubMed Central

    Becker, Talia; Neronov, Alex

    2012-01-01

    Aim. Orthodontic elastic bands were proposed as being the source of gingival abscesses that can rapidly lead to bone loss and teeth exfoliation. We report an adolescent, otherwise, healthy patient whose periodontal status was sound. Shortly after undergoing preparations for orthodontic treatment consisting of orthodontic separators, he presented with a periodontal abscess for which there was no apparent etiology. A non-orthoradial X-ray was inconclusive, but an appropriate one revealed a subgingival orthodontic separator as the cause of the abscess. Removal of the separator and thorough scaling led to complete resolution of the abscess, but there was already residual mild damage to the alveolar bone. Summary. Failure to use appropriate imaging to reveal the cause of gingival abscesses can result in the delay of implementing treatment and halting irreversible alveolar bone loss. An inflammatory process restricted to the gingiva and refractive to conventional therapy should raise the possibility of a foreign body etiology. PMID:22567456

  13. Primary breast lymphoma presenting as non-healing axillary abscess

    PubMed Central

    Anele, Chukwuemeka; Phan, Yih Chyn; Wong, Suanne; Poddar, Anil

    2015-01-01

    A 67-year-old woman with non-insulin dependent diabetes mellitus with a history consistent with a right axillary abscess, presented to her general practitioner (GP). A diagnosis of folliculitis was made and the GP started a course of flucloxacillin. Despite antibiotics, the patient's symptoms worsened and the abscess increased in size. This prompted her GP to perform an incision and drainage procedure of the abscess. The practice nurse subsequently oversaw the follow-up care of the wound. Two months after the incision and drainage, and after regular wound dressing, the patient was referred to the acute surgical team with a complicated, non-healing right axillary abscess cavity and associated generalised right breast cellulitis. There was no history of breast symptoms prior to the onset of the axillary abscess. The patient underwent wound debridement, washout and application of negative pressure vacuum therapy. Biopsies revealed primary breast lymphoma (B-cell). She underwent radical chemotherapy and is currently in remission. PMID:26446318

  14. Primary breast lymphoma presenting as non-healing axillary abscess.

    PubMed

    Anele, Chukwuemeka; Phan, Yih Chyn; Wong, Suanne; Poddar, Anil

    2015-10-07

    A 67-year-old woman with non-insulin dependent diabetes mellitus with a history consistent with a right axillary abscess, presented to her general practitioner (GP). A diagnosis of folliculitis was made and the GP started a course of flucloxacillin. Despite antibiotics, the patient's symptoms worsened and the abscess increased in size. This prompted her GP to perform an incision and drainage procedure of the abscess. The practice nurse subsequently oversaw the follow-up care of the wound. Two months after the incision and drainage, and after regular wound dressing, the patient was referred to the acute surgical team with a complicated, non-healing right axillary abscess cavity and associated generalised right breast cellulitis. There was no history of breast symptoms prior to the onset of the axillary abscess. The patient underwent wound debridement, washout and application of negative pressure vacuum therapy. Biopsies revealed primary breast lymphoma (B-cell). She underwent radical chemotherapy and is currently in remission. 2015 BMJ Publishing Group Ltd.

  15. Surface antigens contribute differently to the pathophysiological features in serotype K1 and K2 Klebsiella pneumoniae strains isolated from liver abscesses.

    PubMed

    Yeh, Kuo-Ming; Chiu, Sheng-Kung; Lin, Chii-Lan; Huang, Li-Yueh; Tsai, Yu-Kuo; Chang, Jen-Chang; Lin, Jung-Chung; Chang, Feng-Yee; Siu, Leung-Kei

    2016-01-01

    The virulence role of surface antigens in a single serotype of Klebsiella pneumoniae strain have been studied, but little is known about whether their contribution will vary with serotype. To investigate the role of K and O antigen in hyper-virulent strains, we constructed O and K antigen deficient mutants from serotype K1 STL43 and K2 TSGH strains from patients with liver abscess, and characterized their virulence in according to the abscess formation and resistance to neutrophil phagocytosis, serum, and bacterial clearance in liver. Both of K1 and K2-antigen mutants lost their wildtype resistance to neutrophil phagocytosis and hepatic clearance, and failed to cause abscess formation. K2-antigen mutant became serum susceptible while K1-antigen mutant maintained its resistance to serum killing. The amount of glucuronic acid, indicating the amount of capsular polysaccharide (CPS, K antigen), was inversed proportional to the rate of phagocytosis. O-antigen mutant of serotype K1 strains had significantly more amount of CPS, and more resistant to neutrophil phagocytosis than its wildtype counterpart. O-antigen mutants of serotype K1 and K2 strains lost their wildtype serum resistance, and kept resistant to neutrophil phagocytosis. While both mutants lacked the same O1 antigen, O-antigen mutant of serotype K1 became susceptible to liver clearance and cause mild abscess formation, but its serotype K2 counterpart maintained these wildtype virulence. We conclude that the contribution of surface antigens to virulence of K. pneumoniae strains varies with serotypes.

  16. Evidence of Archaeal Methanogens in Brain Abscess.

    PubMed

    Drancourt, Michel; Nkamga, Vanessa Demonfort; Lakhe, Ndèye Aïssatou; Régis, Jean-Marie; Dufour, Henry; Fournier, Pierre-Edouard; Bechah, Yassina; Scheld, W Michael; Raoult, Didier

    2017-07-01

    Methanogens are antibiotic-resistant anaerobic archaea that escape routine detection in clinical microbiology. We hypothesized that methanogens are part of the anaerobic community that cause brain abscess. Methanogens were investigated in 1 index sample using specific polymerase chain reaction (PCR) sequencing and culture. The pathogenesis of a methanogen isolate was assessed in a mouse model. Archaea-specific quantitative (q) PCR and metagenomics were used to detect specific archaeal sequences in brain abscess samples and controls. In 1 index sample, routine culture found Porphyromonas endodontalis and Streptococcus intermedius, and specific culture found Methanobrevibacter oralis susceptible to metronidazole and fusidic acid. Archaea-targeted PCR sequencing and metagenomics confirmed M. oralis along with 14 bacteria, including S. intermedius. Archaea-specific qPCR yielded archaea in 8/18 brain abscess specimens and 1/27 controls (P < .003), and metagenomics yielded archaea, mostly methanogens, in 28/32 brain abscess samples, and no archaea in 71 negative controls (P < 10-6). Infection of mice brains yielded no mortality in 14 controls and death in 17/22 M. oralis-inoculated mice (P < 10-6), 32/95 S. intermedius-inoculated mice (P < 10-6), and 75/104 mice inoculated with M. oralis mixed with S. intermedius (P < 10-6) 7 days post-inoculation. Methanogens belong to the anaerobic community responsible for brain abscess, and M. oralis may participate in the pathogenicity of this deadly infection. In mice, a synergy of M. oralis and S. intermedius was observed. Antibiotic treatment of brain abscess should contain anti-archaeal compounds such as imidazole derivatives in most cases. © The Author 2017. Published by Oxford University Press for the Infectious Diseases Society of America. All rights reserved. For permissions, e-mail: journals.permissions@oup.com.

  17. [Hepatobronchial Fistula and Lung Abscess after Transarterial Chemoembolization].

    PubMed

    Lee, Kwanjoo; Song, Jeong Eun; Jeong, Hyang Sook; Kim, Do Young

    2017-05-25

    Transarterial chemoembolization (TACE) is a common treatment modality to locally manage hepatocellular carcinoma. Liver abscess and bile duct injury are common complications of TACE. However, hepatobronchial fistula is a rare complication. Herein, we report a case of lung abscess due to hepatobronchial fistula after TACE. A 67-year-old man, who had underwent TACE 6 months ago, presented cough and bile-colored sputum. He was diagnosed with lung abscess and hepatobronchial fistula. We performed endoscopic retrograde cholangiopancreatography; however, there was no improvement in his symptoms. Thereafter, partial hepatectomy and repair of fistula were successively conducted.

  18. Haloarchaea and the Formation of Gas Vesicles

    PubMed Central

    Pfeifer, Felicitas

    2015-01-01

    Halophilic Archaea (Haloarchaea) thrive in salterns containing sodium chloride concentrations up to saturation. Many Haloarchaea possess genes encoding gas vesicles, but only a few species, such as Halobacterium salinarum and Haloferax mediterranei, produce these gas-filled, proteinaceous nanocompartments. Gas vesicles increase the buoyancy of cells and enable them to migrate vertically in the water body to regions with optimal conditions. Their synthesis depends on environmental factors, such as light, oxygen supply, temperature and salt concentration. Fourteen gas vesicle protein (gvp) genes are involved in their formation, and regulation of gvp gene expression occurs at the level of transcription, including the two regulatory proteins, GvpD and GvpE, but also at the level of translation. The gas vesicle wall is solely formed of proteins with the two major components, GvpA and GvpC, and seven additional accessory proteins are also involved. Except for GvpI and GvpH, all of these are required to form the gas permeable wall. The applications of gas vesicles include their use as an antigen presenter for viral or pathogen proteins, but also as a stable ultrasonic reporter for biomedical purposes. PMID:25648404

  19. THE MANAGEMENT OF ABSCESS OF THE LUNG

    PubMed Central

    Byron, Francis X.

    1952-01-01

    A review of the literature raises considerable doubt as to the advisability of surgical drainage of lung abscess as a definitive procedure. The mortality rate with use of this procedure and other hazards associated with it, must now be viewed in the light of improved methods of conservative therapy — involving the use of penicillin, bronchoscopic treatment and postural drainage—by which cure can be obtained in more than 80 per cent of cases of acute abscess and in a smaller proportion of cases of chronic abscess. Another factor to be considered is the better chance for diagnosis and effective resection of associated carcinoma when conservative treatment is employed. ImagesFigure 1. PMID:14935878

  20. Primary Chest Wall Abscess Mimicking a Breast Tumor That Occurred after Blunt Chest Trauma: A Case Report

    PubMed Central

    Masuda, Norikazu; Yasojima, Hiroyuki; Mizutani, Makiko; Nakamori, Shoji; Kanazawa, Toru; Kuriyama, Keiko; Mano, Masayuki; Sekimoto, Mitsugu

    2014-01-01

    Primary chest wall abscess occurring after blunt chest trauma is rare. We present the case of a 50-year-old woman who presented with a swelling in her left breast. The patient had experienced blunt chest trauma 2 months back. Needle aspiration revealed pus formation in the patient's chest. Computed tomography revealed a mass in the lower region of the left mammary gland, with thickening of the parietal pleura and skin and fracture of the fifth rib under the abscess. Following antibiotic administration and irrigation of the affected region, surgical debridement was performed. During surgery, we found that the pectoralis major muscle at the level of the fifth rib was markedly damaged, although the necrotic tissue did not contact the mammary gland. We diagnosed the lesion as a chest wall abscess that occurred in response to blunt chest trauma. Her postoperative course was uneventful. There has been no recurrence for six months after surgery. PMID:24660001

  1. Silent diabetes mellitus, periodontitis and a new case of thalamic abscess

    PubMed Central

    Karageorgiou, Ioannis; Chandler, Christopher; Whyte, Martin Brunel

    2014-01-01

    Brain abscess is an unusual complication of uncontrolled diabetes. A solitary thalamic abscess is an uncommon type of brain abscess. We report a case of thalamic abscess, whereupon diabetes mellitus and periodontitis were diagnosed. The diagnosis and management of thalamic abscess, and the interplay of type 2 diabetes and periodontitis are discussed. A 56-year-old, Caucasian, man with no medical or travel history, presented with 5-day symptoms of meningeal irritation. Body mass index 30.6 kg/m2. CT demonstrated a solitary midline lesion with neoplasia as a differential diagnosis. It was biopsied and cultures grew Streptococcus milleri. He was treated by stereotactic puncture, external drainage and targeted intrathecal and systemic antibiotic therapy. HIV negative but glycated haemoglobin (HbA1c) 10.7% (93 mmol/mol). Dental examination revealed a small molar abscess. Radiological resolution of the thalamic abscess occurred within 2 months. Diabetes improved with 7 weeks of insulin, and maintained on metformin, HbA1c 6.9% (51 mmol/mol). There was no residual neurological disability. PMID:25053670

  2. Appendectomy correlates with increased risk of pyogenic liver abscess

    PubMed Central

    Liao, Kuan-Fu; Lai, Shih-Wei; Lin, Cheng-Li; Chien, Sou-Hsin

    2016-01-01

    Abstract Little is known on the association between appendectomy and pyogenic liver abscess. The objective of this study was to investigate the association between appendectomy and the risk of pyogenic liver abscess in Taiwan. This population-based retrospective cohort study was conducted using the hospitalization dataset of the Taiwan National Health Insurance Program. There were 212,530 subjects age 20 to 84 years with newly diagnosed appendectomy as the appendectomy group since 1998 to 2010, and 850,099 randomly selected subjects without appendectomy as the nonappendectomy group. Both appendectomy and nonappendectomy groups were matched with sex, age, comorbidities, and index year of diagnosing appendectomy. The incidence of pyogenic liver abscess at the end of 2011 was estimated in both groups. The multivariable Cox proportional hazards regression model was applied to investigate the hazard ratio (HR) and 95% confidence interval (CI) for risk of pyogenic liver abscess associated with appendectomy and other comorbidities including alcoholism, biliary stone, chronic kidney disease, chronic liver diseases, and diabetes mellitus. The overall incidence of pyogenic liver abscess was 1.73-fold greater in the appendectomy group than that in the nonappendectomy group (3.85 vs 2.22 per 10,000 person-years, 95% CI 1.71, 1.76). The multivariable regression analysis disclosed that the adjusted HR of pyogenic liver abscess was 1.77 for the appendectomy group (95% CI 1.59, 1.97), when compared with the nonappendectomy group. Appendectomy is associated with increased hazard of pyogenic liver abscess. Further studies remain necessary to confirm our findings. PMID:27368018

  3. INFLAMMATORY INDEX AND TREATMENT OF BRAIN ABSCESS

    PubMed Central

    OYAMA, HIROFUMI; KITO, AKIRA; MAKI, HIDEKI; HATTORI, KENICHI; NODA, TOMOYUKI; WADA, KENTARO

    2012-01-01

    ABSTRACT This study retrospectively analyzed 12 patients with brain abscesses. Half of the patients were diagnosed inaccurately in the initial stage, and 7.2 days were required to achieve the final diagnosis of brain abscess. The patients presented only with a moderately elevated leukocyte count, serum CRP levels, or body temperatures during the initial stage. These markers changed, first with an increase in the leukocyte count, followed by the CRP and body temperature. The degree of elevation tended to be less prominent, and the time for each inflammatory index to reach its maximum value tended to be longer in the patients without ventriculitis than in those with it. The causative organisms of a brain abscess were detected in 10 cases. The primary causative organisms from dental caries were Streptococcus viridians or milleri, and Fusobacterium nucleatum. Nocardia sp. or farcinica were common when the abscess was found in other regions. The primary causative organisms of unrecognized sources of infection were Streptococcus milleri and Prolionibacterium sp. Nocardia is resistant to many antibiotics. However, carbapenem, tetracycline and quinolone were effective for Nocardia as well as many other kinds of bacteria. In summary, the brain abscesses presented with only mildly elevated inflammatory markers of body temperature, leukocyte and CRP. These inflammatory markers were less obvious in the patients without ventriculitis and/or meningitis. The source of infection tended to suggest some specific primary causative organism. It was reasonable to initiate therapy with carbapenem. PMID:23092104

  4. Percutaneous drainage of colonic diverticular abscess: is colon resection necessary?

    PubMed

    Gaertner, Wolfgang B; Willis, David J; Madoff, Robert D; Rothenberger, David A; Kwaan, Mary R; Belzer, George E; Melton, Genevieve B

    2013-05-01

    Recurrent diverticulitis has been reported in up to 30% to 40% of patients who recover from an episode of colonic diverticular abscess, so elective interval resection is traditionally recommended. The aim of this study was to review the outcomes of patients who underwent percutaneous drainage of colonic diverticular abscess without subsequent operative intervention. This was an observational study. This investigation was conducted at a tertiary care academic medical center and a single-hospital health system. Patients treated for symptomatic colonic diverticular abscess from 2002 through 2007 were included. The primary outcomes measured were complications, recurrence, and colectomy-free survival. Two hundred eighteen patients underwent percutaneous drainage of colonic diverticular abscesses. Thirty-two patients (15%) did not undergo subsequent colonic resection. Abscess location was pelvic (n = 9) and paracolic (n = 23), the mean abscess size was 4.2 cm, and the median duration of percutaneous drainage was 20 days. The comorbidities of this group of patients included severe cardiac disease (n = 16), immunodeficiency (n = 7), and severe pulmonary disease (n = 6). Freedom from recurrence at 7.4 years was 0.58 (95% CI 0.42-0.73). All recurrences were managed nonoperatively. Recurrence was significantly associated with an abscess size larger than 5 cm. Colectomy-free survival at 7.4 years was 0.17 (95% CI 0.13-0.21). This study was limited by its retrospective, nonexperimental design and short follow-up. In selected patients, observation after percutaneous drainage of colonic diverticular abscess appears to be a safe and low-risk management option.

  5. [Multiple actinomycosis brain abscesses].

    PubMed

    Liotier, J; Venet, C; Chambonnière, M-L; Fournier, C; Fotso, M-J; Ewencsyk, I; Barral, F-G; Carricajo, A; Robert, F; Lucht, F; Mosnier, J-F; Zéni, F

    2004-03-13

    Actinomycosis is a subacute or chronic bacterial infection, which can affect immunocompetent or immunodeficient subjects. It most often occurs in cervico-facial or thoracic-abdominal locations. Central nervous system infection is rare but of severe prognosis. A 56 year-old woman with no history of immunodepression was admitted with unexplained fever, inappropriate behaviour, and spatial and temporal disorientation. The progressive worsening of the neurological signs let to coma and mechanical ventilation was required. Brain imaging showed multilocation cerebral abscesses. Stereotaxial biopsy permitted diagnosis of actinomycosis. Patient's outcome was favourable following appropriate dual antibiotherapy without surgical exeresis. When lacking bacteriologic identification, diagnosis of cerebral actinomycosis is performed by pathologic findings. Dual antibiotherapy allows full recover, even in the case of multilocation cerebral abscesses.

  6. Unusual case of a lung abscess.

    PubMed

    Musa, Duduzile; Godbole, Gauri; Chiodini, Peter L; Phillips, Russell

    2013-04-16

    A 56-year-old Caucasian lady presented with a short history of pleuritic chest pain on the background of a 2-month history of fever, chills, 10-kg weight loss and cough with brown sputum after a laparoscopic cholecystectomy. She had persistent eosinophilia and was diagnosed with a lung abscess as seen on chest x-ray. She did not respond to standard intravenous broad spectrum antibacterial medication and her chest CT scan showed a moderate pleural collection in continuity with the abscess. She also underwent bronchoscopy, the microscopy of the bronchial washings revealing eggs of the trematode Fasciola. The bacterial and fungal cultures of the washings were sterile. She had visited Turkey in the previous year but did not remember consuming any watercress or aquatic plants. She was successfully treated with two doses of the antiparasitic agent triclabendazole. Ectopic Fasciola can be a rare cause of a lung abscess.

  7. Pulmonary Abscess as a Complication of Transbronchial Lung Cryobiopsy.

    PubMed

    Skalski, Joseph H; Kern, Ryan M; Midthun, David E; Edell, Eric S; Maldonado, Fabien

    2016-01-01

    We present the case of a 49-year-old man who developed pulmonary abscess as a complication of transbronchial lung cryobiopsy. He had been receiving prednisone therapy, but otherwise had no specific risk factors for lung abscess. Cryobiopsy is a novel technique for obtaining peripheral lung parenchymal tissue for the evaluation of diffuse parenchymal lung diseases. Cryobiopsy is being increasingly proposed as an alternative to surgical lung biopsy or conventional bronchoscopic transbronchial forceps biopsy, but the safety profile of the procedure has not been fully appreciated. Pulmonary abscess has been rarely reported as a complication of other bronchoscopic procedures such as endobronchial ultrasound-guided needle biopsy, however, to our knowledge this is the first reported case of pulmonary abscess complicating peripheral lung cryobiopsy.

  8. Management of intramedullary spinal cord abscess: experience with four cases, pathophysiology and outcomes

    PubMed Central

    Khriesat, Wadah; Qudsieh, Suhair; Qudsieh, Hanna; Loai, Abu Alia

    2009-01-01

    Intramedullary spinal cord abscess (ISCA) in children is extremely a rare infection of the central nervous system (CNS); and probably a devastating neurological condition. Clinical awareness of patients at risk is crucial for early diagnosis and intervention; as this entity is one of the treatable conditions of paraparesis. Association with congenital neuro-ectodermal abnormality in children is frequent. This pathology highlights the importance of complete neurological checks of infants as a part of their routine physical examination and early management of patients with congenital dermal sinus, prophylactic surgical resection of such a congenital anomaly is recommended by most authors to prevent serious infections of the CNS. However, once the abscess is established; immediate surgical drainage along side adequate antibiotics should be instituted. This may guarantee improving neurological outcome. In this communication, the authors present their experience with four cases of ISCA in children treated successfully with surgical drainage, intravenous antibiotics and neuro rehabilitation between 2001 and 2006 and discuss their results. We concluded that early diagnosis and treatment is essential; before a devastating mechanico-vascular insult of the spinal cord is established from rapid formation of the abscess and a swift expansion of the spinal cord within the limited intraspinal space. PMID:19172309

  9. Breast abscess as a complication of human brucellosis.

    PubMed

    Gurleyik, Emin

    2006-01-01

    Breast abscess caused by human brucellosis is extremely rare. A 46-year-old woman received the diagnosis of brucellosis with positive serologic tests. Two weeks after the onset of symptoms, the case was complicated by vertebral (L5-S1) abscess which was treated by surgical drainage. One month after the diagnosis of brucellosis, the patient noticed a mass in her left breast. Breast palpation revealed a painless, mobile, round mass that was hypoechoic on ultrasound imaging. Purulent material was obtained by needle aspiration. Besides treatment of the breast abscess by needle aspiration, brucellosis was successfully controlled by prolonged antimicrobial treatment.

  10. Liver abscess caused by periodontal bacterial infection with Fusobacterium necrophorum.

    PubMed

    Yoneda, Masato; Kato, Shingo; Mawatari, Hironori; Kirikoshi, Hiroyuki; Imajo, Kento; Fujita, Koji; Endo, Hiroki; Takahashi, Hirokazu; Inamori, Masahiko; Kobayashi, Noritoshi; Kubota, Kensuke; Saito, Satoru; Tohnai, Iwai; Watanuki, Kei; Wada, Koichiro; Maeda, Shin; Nakajima, Atsushi

    2011-02-01

    Liver abscess is recognized as a life-threatening disease. However, even in recent years, approximately 50% of liver abscess cases are considered to be cryptogenic. Here, we report a case of liver abscess associated with periodontal bacterial infection by Fusobacterium necrophorum, which is commonly found in the oropharyngeal flora. A 36-year-old man presented with fever and contrast-enhanced abdominal computed tomography revealed multiple liver abscesses. F.necrophorum was isolated from oral smears, liver aspirates and blood samples. Liver abscesses caused by periodontal bacterial infection are rare, however, the incidence is expected to increase in the future, as periodontitis is extremely common and is on the rise as one of the most common chronic infections in the world. A systemic survey including periodontitis may be required for the exact diagnosis of the source of infection. © 2011 The Japan Society of Hepatology.

  11. Creating and maintaining a gas cap in tar sands formations

    DOEpatents

    Vinegar, Harold J.; Karanikas, John Michael; Dinkoruk, Deniz Sumnu; Wellington, Scott Lee

    2010-03-16

    Methods for treating a tar sands formation are disclosed herein. Methods for treating a tar sands formation may include providing heat to at least part of a hydrocarbon layer in the formation from one or more heaters located in the formation. Pressure may be allowed to increase in an upper portion of the formation to provide a gas cap in the upper portion. At least some hydrocarbons are produced from a lower portion of the formation.

  12. The Massachusetts abscess rule: a clinical decision rule using ultrasound to identify methicillin-resistant Staphylococcus aureus in skin abscesses.

    PubMed

    Gaspari, Romolo J; Blehar, David; Polan, David; Montoya, Anthony; Alsulaibikh, Amal; Liteplo, Andrew

    2014-05-01

    Treatment failure rates for incision and drainage (I&D) of skin abscesses have increased in recent years and may be attributable to an increased prevalence of community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA). Previous authors have described sonographic features of abscesses, such as the presence of interstitial fluid, characteristics of abscess debris, and depth of abscess cavity. It is possible that the sonographic features are associated with MRSA and can be used to predict the presence of MRSA. The authors describe a potential clinical decision rule (CDR) using sonographic images to predict the presence of CA-MRSA. This was a pilot CDR derivation study using databases from two emergency departments (EDs) of patients presenting to the ED with uncomplicated skin abscesses who underwent I&D and culture of the abscess contents. Patients underwent ultrasound (US) imaging of the abscesses prior to I&D. Abscess contents were sent for culture and sensitivity. Two independent physicians experienced in soft tissue US blinded to the culture results and clinical data reviewed the images in a standardized fashion for the presence or absence of the predetermined image characteristics. In the instance of a disagreement between the initial two investigators, a third reviewer adjudicated the findings prior to analysis. The association between the primary outcome (presence of MRSA) and each sonographic feature was assessed using univariate and multivariate analysis. The reliability of each sonographic feature was measured by calculating the kappa (κ) coefficient of interobserver agreement. The decision tree model for the CDR was created with recursive partitioning using variables that were both reliable and strongly associated with MRSA. Of the total of 2,167 patients who presented with skin and soft tissue infections during the study period, 605 patients met inclusion criteria with US imaging and culture and sensitivity of purulence. Among the pathogenic

  13. Presentation of Preauricular Sinus and Preauricular Sinus Abscess in Southwest Nigeria

    PubMed Central

    Adegbiji, W. A.; Alabi, B. S.; Olajuyin, O. A.; Nwawolo, C. C.

    2013-01-01

    BACKGROUND AND AIM: Preauricular sinus abscess is a common congenital external ear disease. This abscess is usually misdiagnosed because it is commonly overlooked during physical examination. In Nigeria, the prevalence was 9.3% in Ilorin, north central Nigeria This study is to determine the distribution and clinical presentation of the preauricular sinus abscess in Ekiti, south west Nigeria. MATERIALS AND METHODS: This is a prospective hospital based study of all patients with diagnosis of preauricular sinus abscess seen in our clinic carried out between April 2008 to March 2010. Detailed clinical history, administered interviewer’s assisted questionnaires full examination and. Data obtained were collated and analysed. RESULTS: Preauricular sinus were noticed in 184 (4.4%) out of 4170 patients seen during the study period. Preauricular sinus abscess were noticed in 21 (11.4%) of the preauricular sinuses especially in children. Unilateral preauricular sinus abscess accounted for 90.5%. Common presenting complaints were preauricular swelling (81.0%), 90.5% with recurrent earaches, 76.2% with ear discharges. All patients had antibiotic / analgesic while 17 out of 21 (81.0%) had surgical excisions. CONCLUSION: Preauricular sinus abscess were noticed among 11.4% of the preauricular sinuses especially in children, unilateral preauricular sinus abscess accounted for 90.5%. Common complaints were otorrhoea, earaches, and swelling and they were mostly managed surgically. PMID:24711764

  14. Destruction of the C2 Body due to Cervical Actinomycosis: Connection between Spinal Epidural Abscess and Retropharyngeal Abscess

    PubMed Central

    Kim, Dong Min; Kim, Seok Won

    2017-01-01

    Human actinomycosis with involvement of the spine is a rare condition, with only a limited number of case reports published. To the best of our knowledge, no cases have been reported of epidural abscess causing destruction of the C2 body, bringing about a direct connection between spinal epidural and retropharyngeal abscesses. Here, we present such a case that occurred after acupuncture, and we review the relevant literature. PMID:28407707

  15. Focal necrotizing pneumonia is a distinct entity from lung abscess.

    PubMed

    Seo, Hyewon; Cha, Seung-Ick; Shin, Kyung-Min; Lim, Jaekwang; Yoo, Seung-Soo; Lee, Jaehee; Lee, Shin-Yup; Kim, Chang-Ho; Park, Jae-Yong

    2013-10-01

    'Focal necrotizing pneumonia' was defined as a localized type of necrotizing pneumonia characterized by a single or few cavities of low density without rim enhancement on computed tomography (CT) scan. The purpose of this study was to investigate the clinical features and course of patients with focal necrotizing pneumonia, thereby elucidating its clinical relevance. The present study was conducted retrospectively in patients who had been interpreted as having lung abscess or necrotizing pneumonia on CT scan. Clinical and radiological characteristics were compared between the focal necrotizing pneumonia and lung abscess groups. Overall, 68 patients with focal necrotizing pneumonia (n = 35) or lung abscess (n = 33) were included in the present study. The frequency of risk factors for aspiration was significantly lower in the focal necrotizing group, compared with the lung abscess group (14.3% vs 45.5%, P = 0.005). Compared with lung abscess, focal necrotizing pneumonia was observed more commonly in non-gravity-dependent segments (66% vs 36%, P < 0.001). In addition, a trend towards more common isolation of aerobes as potential pathogens was observed in the focal necrotizing pneumonia group, compared with the lung abscess group (31% vs 12%, P = 0.08). However, in terms of treatment outcomes, a similar high rate of success was observed in both groups: 97%, respectively. Compared to lung abscess, focal necrotizing pneumonia occurs more commonly in non-gravity-dependent segments with lower incidence of risk factors for aspiration. Similar to lung abscess, the rate of success for treatment of focal necrotizing pneumonia was high. © 2013 The Authors. Respirology © 2013 Asian Pacific Society of Respirology.

  16. [Enterococcus faecium lung abscess: one case report and literature review].

    PubMed

    Fang, Xiang-Qun; Liu, You-Ning

    2010-02-01

    to study the diagnosis and treatment of enterococcus faecium lung abscess. a retrospective analysis of one case of Enterococcus faecium lung abscess and literature review was conducted. this patient suffered from cough and sputum over 6 months and complicated with hemoptysis over 3 months. Pulmonary embolism and lung cancer were suspected initially. After 2 times of CT-guided percutaneous transthoracic needle aspiration biopsy the diagnosis of pneumonia was made in other hospitals. However, the consolidation in the lung progressed and cavity appeared although antibiotic therapy was conducted. After admission to our hospital, CT-guided percutaneous transthoracic needle aspiration biopsy was made and the lung tissue was sent for bacterial culture. Enterococcus faecium was cultured and it was susceptible to vancomycin, teicoplanin and linezolid. The disease improved significantly after treatment with these 3 antibiotics in turn. In addition, 13 cases of enterococcus pneumonia or lung abscess were reviewed, including 3 cases of enterococcus faecium lung abscess. enterococcus faecium is rarely a pathogen for lung abscess. The diagnosis of enterococcus faecium lung abscess could be confirmed by lung biopsy and bacterial culture of lung tissue which could also provide the susceptibility of antibiotics and guide the antibiotic therapy.

  17. The microbiota of acute apical abscesses.

    PubMed

    Siqueira, J F; Rôças, I N

    2009-01-01

    As the breadth of bacterial diversity in the oral cavity has been deciphered by molecular studies, several newly identified species/phylotypes have emerged as potential pathogens. We hypothesized that many of these species/phylotypes could also be involved with the etiology of endodontic abscesses. Abscess aspirates from 42 persons were analyzed for the presence of 81 species/phylotypes by means of a reverse-capture checkerboard hybridization assay. Associations between the most frequently detected taxa were calculated. The most prevalent taxa were Fusobacterium nucleatum, Parvimonas micra, and Porphyromonas endodontalis. Other frequently found taxa included Olsenella uli, streptococci, Eikenella corrodens, some as-yet-uncultivated phylotypes (Bacteroidetes clone X083 and Synergistes clone BA121), and newly named species (Prevotella baroniae and Dialister invisus). Several positive bacterial associations were disclosed. Findings not only strengthen the association of many cultivable species with abscesses, but also include some newly named species and uncultivated phylotypes in the set of candidate pathogens associated with this disease.

  18. Hounsfield unit values of retropharyngeal abscess-like lesions seen in Kawasaki disease.

    PubMed

    Sasaki, Toru; Miyata, Rie; Hatai, Yoshiho; Makita, Kohzoh; Tsunoda, Koichi

    2014-04-01

    Retropharyngeal abscess-like lesions are occasionally seen in computed tomography (CT) imaging of patients with Kawasaki disease (KD) and these patients often undergo unnecessary surgery. We could distinguish the lesions from true abscesses by measuring their Hounsfield unit values (HUs). To distinguish the retropharyngeal abscess-like lesions from true abscesses without any surgical procedure. We investigated six cases of KD showing such lesions on CTs, both with and without contrast enhancement (CE). We measured the HUs of those lesions and compared them with those of 10 true abscesses as controls. Abscess-like lesions of KD were well enhanced by CE, whereas abscesses showed virtually no enhancement. The mean HU in the six KD cases was 20.0 ± 4.65 (mean ± SD) on plain CTs and 35.6 ± 4.49 on contrast CTs. In abscesses, it was 30.3 ± 4.42 on plain CTs and 30.3 ± 3.57 on contrast CTs. The difference in HU values [(HU on contrast CT) - (HU on plain CT)] was defined as ΔHU. The mean ΔHU was 15.6 ± 5.36 in the six KD lesions and 0.0 ± 2.93 in abscesses, with statistical significance of p < 0.0001 by Student's t test. Thus, ΔHU value may potentially be a useful parameter for their distinction.

  19. [A case of freeze-dried gas gangrene antitoxin for the treatment of Clostridium perfringens sepsis].

    PubMed

    Yoshida, Juichiro; Nakamura, Hideki; Yamada, Shinya; Sekoguchi, Satoru; Suzuki, Takahiro; Tomatsuri, Naoya; Sato, Hideki; Okuyama, Yusuke; Kimura, Hiroyuki; Yoshida, Norimasa

    2015-02-01

    A 66-year-old man was admitted to our hospital with high fever. We diagnosed a gas-containing liver abscess and performed percutaneous abscess drainage. However, 15 hours after admission, he developed massive intravascular hemolysis and acidosis. Sepsis due to Clostridium perfringens was suspected and we treated the patient intensively with multidisciplinary approaches, including antibiotics, mechanical ventilation, and renal replacement therapy. Furthermore, we administered freeze-dried gas gangrene antitoxin. Despite intensive care, the patient died 43 hours after admission.

  20. Transbronchial drainage using endobronchial ultrasonography with guide sheath for lung abscess

    PubMed Central

    Yaguchi, Daizo; Ichikawa, Motoshi; Inoue, Noriko; Kobayashi, Daisuke; Shizu, Masato; Imai, Naoyuki

    2018-01-01

    Abstract Rationale: Lung abscess was previously treated surgically, but is now mainly treated with antibiotics and ideally with direct drainage, although postural drainage canalso be used. Patient concerns: A chest abnormal shadow was detected in an 82-year-old man and he was referred to our department in November 2017. On chest computed tomography (CT), a low-density mass shadow was present in the left S8 segment. Lung abscess and lung cancer were considered as differential diagnoses, and treatment with sulbactam sodium/ampicillin sodium (SBT/ABPC) was first initiated for lung abscess. The etiologic agent could not be identified by sputum examination, and the abscess shadow remained. Diagnoses: Lung abscess. Interventions: Endobronchial ultrasonography with a guide sheath (EBUS-GS)-guided bronchoscopy was performed on hospital day 21 to diagnose the lesion, identify the etiologic agent if the lesion was a lung abscess, and attempt drainage. Vacuum aspiration performed in the guide sheath after the probe was placed within the lesion produced 4-5 ml of gray turbid pus, and the abscess was judged to have been drained. Outcomes: A subsequent pathological examination did not detect malignant cells. Klebsiella pneumoniae, Prevotella spp. was identified as the etiologic agent in bacteriological tests. Antibiotics were changed based on sensitivity test results, and drainage was similarly performed on hospital day 28. The shadow gradually improved and disappeared. Therefore, this procedure and treatment led to identification of the etiologic agent and helped with cure of the disease. Lessons: Based on the basic principle of treatment for abscess using as much drainage as possible, EBUS-GS-guided transbronchial drainage may be considered to be a “new procedure” for lung abscess. PMID:29768382

  1. Splenic Abscess Associated with Endocarditis in a Patient on Hemodialysis: A Case Report

    PubMed Central

    Kim, Hyun Soo; Cho, Min Seok; Hwang, Seung Hwan; Ma, Seong Kwon; Kim, Soo Wan; Kim, Nam Ho

    2005-01-01

    Splenic abscess is an unusual condition usually seen in immunocompromised patients or associated with intravenous drug abuses. Several conditions including trauma, immunodeficiency, corticosteroid and/or immunosuppressive therapy and diabetes mellitus have been listed under the predisposing factors for a splenic abscess. Splenic abscess in a patient on hemodialysis is a rare but life-threatening condition if not corrected. We describe a case of splenic abscess with bacterial endocarditis on maintenance hemodialysis. He had staphylococcal septicemia secondary to bacterial endocarditis at the mitral valve from the dialysis accesssite infection. Although hematologic seeding from endocarditis has been the predisposing factor for splenic abscess, we postulate that access-site infections may predispose hemodialysis patients to splenic abscess. Splenic abscess may be considered as one of the causes when patients on hemodialysis develop unexplained fever. PMID:15832007

  2. Bronchoscopic drainage of a malignant lung abscess.

    PubMed

    Katsenos, Stamatis; Psathakis, Konstantinos; Chatzivasiloglou, Fotini; Antonogiannaki, Elvira-Markela; Psara, Anthoula; Tsintiris, Konstantinos

    2015-04-01

    Bronchoscopic drainage of a pyogenic lung abscess is an established therapeutic approach in selected patients in whom conventional antibiotic therapy fails. This intervention has also been undertaken in patients with abscess owing to underlying lung cancer and prior combined radiochemotherapy. However, this procedure has rarely been performed in cavitary lesions of advanced tumor origin before initiating any chemotherapy/radiotherapy scheme. Herein, we describe a case of a 68-year-old woman with lung adenocarcinoma stage IIIB, who underwent bronchoscopic drainage of necrotizing tumor lesion, thus improving her initial poor clinical condition and rendering other treatment modalities, such as radiotherapy, more effective and beneficial. Bronchoscopic drainage of a symptomatic cancerous lung abscess should be considered as an alternative and palliative treatment approach in patients with advanced inoperable non-small cell lung cancer.

  3. 18 CFR 270.304 - Tight formation gas.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 18 Conservation of Power and Water Resources 1 2010-04-01 2010-04-01 false Tight formation gas. 270.304 Section 270.304 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY COMMISSION... before January 1, 1980; and (2) The applicant has no knowledge of any information not described in the...

  4. Predicting deep neck space abscess using computed tomography.

    PubMed

    Smith, Joseph L; Hsu, Jack M; Chang, Jakwei

    2006-01-01

    To investigate objective measures that could increase the positive predictive value of computed tomography (CT) in diagnosing deep neck space infections (DNSIs). A retrospective analysis of patients surgically treated at a tertiary care hospital for DNSIs for more than 2 years were reviewed. Patients who had had CT with contrast scanning suggestive of deep neck space abscess within 24 hours before surgery were included. The average Hounsfield units for each abscess were calculated. Based on the intraoperative finding of pus, the patients were divided into groups. Student t tests compared the average Hounsfield units, white blood cell count, and maximum temperature between the groups. Outcomes were measured by comparing overall length of hospital stay, length of postoperative stay, and complications. Of the 32 patients surgically drained, 24 (75%) had discreet collections of pus, whereas 12 (25%) did not. Hounsfield unit measurement was not reliable in distinguishing abscess from phlegmon. None of the other clinical variables studied to distinguish abscess from phlegmon were statistically different either. A statistical difference between the 2 groups was not identified. Although CT with contrast plays an important role in the diagnosis and management of DNSIs, the decision for surgical drainage of an abscess should be made clinically. A negative exploration rate of nearly 25% despite careful selection criteria should be expected.

  5. Portal vein thrombosis and liver abscess due to Lactococcus lactis.

    PubMed

    Güz, Galip; Yeğin, Zeynep Arzu; Doğan, Ibrahim; Hizel, Kenan; Bali, Musa; Sindel, Sükrü

    2006-06-01

    A 26-year-old man was admitted with fever and abdominal pain. Abdominal ultrasonography and Doppler ultrasound eventually revealed portal vein thrombosis and a pyogenic liver abscess (17x11x11 cm). Lactococcus lactis was isolated from a culture of the abscess material. This organism is not a common pathogen in humans. This is the first published description of portal vein thrombosis and pyogenic liver abscess due to L. lactis.

  6. Locked-in syndrome caused by a solitary pontine abscess.

    PubMed Central

    Murphy, M J; Brenton, D W; Aschenbrener, C A; Van Gilder, J C

    1979-01-01

    The clinical and pathological findings in a patient with locked-in syndrome caused by a solitary pontine abscess are reported for the first time. Successful treatment of brainstem abscess rests on early and accurate diagnosis. Images PMID:501372

  7. Clinical and radiological features of invasive Klebsiella pneumoniae liver abscess syndrome.

    PubMed

    Shin, Sung Ui; Park, Chang Min; Lee, Youkyung; Kim, Eui-Chong; Kim, Soo Jin; Goo, Jin Mo

    2013-06-01

    Recently, a striking new clinical manifestation of Klebsiella pneumoniae (KP) infection referred to as invasive KP liver abscess syndrome (IKPLAS), defined by liver abscess with contemporaneous metastatic KP infections at other body sites has been documented. Until now, however, there have been relatively few reports regarding its radiologic features. To describe the clinical and radiological features of IKPLAS patients, and to compare them with those with KP liver abscess without metastatic infections to ascertain possible predictors of IKPLAS. From January 2008 to May 2010, 35 patients (26 men and 9 women; mean age, 59.4 years) with both liver abscess and metastatic KP infections were diagnosed with IKPLAS. Their clinical and radiological features were retrospectively evaluated and compared with those of 25 contemporaneous non-metastatic patients to investigate predictive factors for metastatic infections. The rate of intensive care unit admissions and overall mortality was 34.3% and 17.1% in IKPLAS patients, and was significantly higher than those of the non-metastatic group (8% and 0%, respectively). As for metastatic infections, the lung was the most common site and multiple nodules or masses (n = 9) were the most common manifestations. Univariate analysis revealed that liver abscess ≤5.8 cm, bilobar involvement of abscess and altered mentality were significantly related with IKPLAS. At multivariate analysis, liver abscess ≤5.8 cm was proven to be a significant independent predictor of IKPLAS (OR, 3.6; P = 0.038). In addition, altered mentality was present solely in IKPLAS (25.7% vs. 0%) although its P value (P = 0.052) did not reach a statistical significance at multivariate analysis. IKPLAS has significantly worse prognosis than non-metastatic KP abscess patients. In patients with KP liver abscess, liver abscess ≤5.8 cm can be used as an independent predictor of IKPLAS and altered mentality as a very specific feature in diagnosing IKPLAS. © 2013 The

  8. New diagnostic and therapeutic techniques in the management of pyogenic liver abscesses

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Ranson, J.H.C.; Madayag, M.A.; Localio, S.A.

    1975-05-01

    An unexplained increase in the frequency of pyogenic liver abscesses of unknown etiology has, fortunately, been paralleled by significant advances in diagnostic and therapeutic methods. This report reviews experience with 14 patients operated upon at NYU Medical Center since 1971. Eight cases (57 percent) were cryptogenic. Other abscesses were associated with biliary disease (3); abdominal sepsis (2); and trauma (1). Abscesses were present on hospitalization in 12 patients. Clinical findings included fever (101 to 108 F), 100 percent; leucocytosis, 71 percent; anorexia and vomiting, 50 percent; localized tenderness and hepatomegaly, 50 percent; hypoalbuminemia; 86 percent; hypocholesterolemia, 78 percent; elevated SGOT,more » 71 percent; and elevated aikaline phosphatase, 43 percent. Technetium hepatic scintiscans showed focal defects in 10 of 12 patients (83 percent), but did not detect multiple abscesses in 2 of these. Hepatic arteriography performed in 10 patients was highly accurate, outlining single abscesses in 6 and multiple abscesses in 4. Furthermore, in one patient a false positive scintiscan was demonstrated by negative arteriography, confirmed by autopsy. In 4 patients, arteriography indicated an abscess in the posterior-superior area of the right hepatic lobe. With precise anatomical localization, a transthoracic approach permitted uncomplicated drainage in each case. This approach provides excellent exposure and direct drainage for abscesses in this area. An additional therapeutic adjunct in two patients, with 4 and 11 abscesses each, was postoperative intraportal infusion of antibiotics through the umbilical vein. Thirteen patients (83 percent) recovered, one dying from pulmonary embolism. Primary hepatic abscesses occur with increasing frequency. The methods described allow more precise preoperative diagnosis and direct surgical drainage. (auth)« less

  9. Spinal epidural abscess due to Aspergillus infection of the vertebrae: report of 3 cases.

    PubMed

    Dubbeld, P; van Oostenbrugge, R J; Twinjstra, A; Schouten, H C

    1996-01-01

    Aspergillus infection of the vertebral bodies and intervertebral disc spaces with consequent formation of a spinal epidural abscess was diagnosed in 3 patients with acute leukaemia. Medical therapy consisted of high-dose amphotericin-B with good local control of disease in one patient. The second patient underwent surgical drainage. The third patient had stabilisation of the disease. The clinical features, diagnosis and treatment are discussed.

  10. Vaccine-associated paralytic poliomyelitis in an infant with perianal abscesses.

    PubMed

    Higashigawa, Masamune; Maegawa, Kayoka; Honma, Hitoshi; Yoshino, Ayako; Onozato, Kaori; Nashida, Yuji; Fujiwara, Takashi; Inoue, Masakazu

    2010-10-01

    We describe a case of vaccine-associated paralytic poliomyelitis (VAPP) in a 7-month-old infant with perianal abscesses. The infant had suffered from perianal abscesses from 3 weeks after birth. The abscesses repeatedly developed and spontaneously drained through the orifice. Twenty-seven days before admission, a live attenuated oral poliovirus vaccine (OPV) was given to the infant for the first time for routine immunization. His body temperature rose to 38°C 19 days after receiving the OPV and fell 4 days later. Flaccid paralysis of the right leg appeared 26 days after receipt of the OPV. A Sabin type 3 poliovirus was isolated from a stool obtained at admission. The DNA sequences of the VP1 region of the isolated virus were more than 99% identical with those of the vaccine strain. Mild muscle atrophy with moderate motor impairment in the right leg persisted at 18 months of age. One VAPP case provoked by a perianal abscess has been reported from the United Kingdom. Database search revealed that one of nine VAPP cases reported during 2003-2008 in Japan had a perianal abscess. Taken together, these reports and our case imply that we should give OPV with caution to infants with a perianal abscess.

  11. Pituitary abscess: a case report and review of the literature

    PubMed Central

    Karagiannis, Apostolos K A; Dimitropoulou, Fotini; Papatheodorou, Athanasios; Lyra, Stavroula; Seretis, Andreas

    2016-01-01

    Summary Pituitary abscess is a rare life-threating entity that is usually misdiagnosed as a pituitary tumor with a definite diagnosis only made postoperatively. Over the last several decades, advances in healthcare have led to a significant decrease in morbidity and mortality due to pituitary abscess. We report a case of a 34-year-old woman who was admitted to our department for investigation of a pituitary mass and with symptoms of pituitary dysfunction, headaches and impaired vision. During her admission, she developed meningitis-like symptoms and was treated with antibiotics. She eventually underwent transsphenoidal surgery for excision of the pituitary mass. A significant amount of pus was evident intraoperatively; however, no pathogen was isolated. Six months later, the patient was well and had full recovery of the anterior pituitary function. Her menses returned, and she was only on treatment with desmopressin for diabetes insipidus that developed postoperatively. Learning points Pituitary abscess is a rare disease and the reported clinical features vary mimicking other pituitary lesions. The diagnosis of pituitary abscess is often very difficult to make and rarely included in the differential. The histological findings of acute inflammatory infiltration confirm the diagnosis of pituitary abscess. Medical and surgical treatment is usually recommended upon diagnosis of a pituitary abscess. PMID:27274845

  12. Vacuum-assisted closure therapy in the management of lung abscess.

    PubMed

    Sziklavari, Zsolt; Ried, Michael; Hofmann, Hans-Stefan

    2014-09-06

    Despite significant advances in the treatment of thoracic infections, complex lung abscess remains a problem in modern thoracic surgery. We describe the novel application of vacuum-assisted closure for the treatment of a lung abscess. The technical details and preliminary results are reported. After the initial failed conservative treatment of an abscess, minimally invasive surgical intervention was performed with vacuum-assisted closure. The vacuum sponges were inserted in the abscess cavity at the most proximal point to the pleural surface. The intercostal space of the chest wall above the entering place was secured by a soft tissue retractor. The level of suction was initially set to 100 mm Hg, with a maximum suction of 125 mm Hg. The sponge was changed once on the 3rd postoperative day. The abscess cavity was rapidly cleaned and decreased in size. The mini-thoracotomy could be closed on the 9th postoperative day. Closure of the cavity was simple, without any short- or long-term treatment failure. This technique reduced the trauma associated with the procedure. The patient was discharged on the 11th postoperative day. Vacuum-assisted closure systems should be considered for widespread use as an alternative option for the treatment of complicated pulmonary abscess in elderly, debilitated, immunocompromised patients after failed conservative treatment.

  13. Mandibular fracture caused by periodontal abscess: Radiological, US, CT and MRI findings.

    PubMed

    Mazza, D; Marini, M; Tesei, J; Primicerio, P

    2006-09-01

    Mandibular fracture is a rare but possible outcome of a periodontal abscess. A case of complete fracture of the mandible with abscess infiltrating the surrounding soft tissues is described. The patient reported nor trauma, nor locoregional surgery. Ultrasonography and orthopantomography revealed the fracture of the mandible and the abscess at the masseter muscle. Further preoperative diagnostic examinations included CT and MRI. CT revealed the complete fracture line more clearly; MR the extension of the abscess.

  14. Male breast cancer is rare: an initial presentation may be as an abscess.

    PubMed

    Ventham, N T; Hussien, M I

    2010-08-06

    Breast cancer in men is rare. Breast cancer presenting initially as an abscess has been described only a handful of times in the literature. We present the first described case of invasive adenocarcinoma presenting as an abscess in a man. An 80-year-old diabetic man presented with symptoms typical of a breast abscess. The abscess failed to respond to percutaneous therapy and excision of breast abscess was performed. Histology revealed an invasive carcinoma. He went on to have a mastectomy. Histology should be obtained from breast abscesses not resolving within 2 months of initial percutaneous therapy. Histology could be obtained by ultrasound-guided fine-needle aspiration (FNA), core or vacuum assisted biopsy, or by formal incision and drainage.

  15. Post-traumatic intracranial epidural Aspergillus fumigatus abscess.

    PubMed

    Letscher, V; Herbrecht, R; Gaudias, J; Taglang, G; Koenig, H; Dupuis, M G; Waller, J

    1997-01-01

    We report an intracranial epidural abscess caused by Aspergillus fumigatus in an immunocompetent patient. Infection occurred in a 20-year-old man 2 months after a frontal craniotomy following trauma. The abscess was encapsulated by a thickened dura and although the fungus did not invade the brain, frontal bone was infected and the patient presented with a subcutaneous frontal cellulitis. Initial management combined surgical drainage, resection of necrotic bone and liposomal amphotericin B (1 mg kg-1 per day). After 3 weeks of antifungal treatment a second evaluation surgery was performed. A clinically and radiologically unsuspected new abscess was found and evacuated. Treatment was completed with instillation into the cavity of amphotericin B at a concentration of 5 mg ml-1 and prolonged oral itraconazole (400-600 mg day-1). Treatment was successful and the patient is free of infection after 3 years.

  16. Treatments for breast abscesses in breastfeeding women.

    PubMed

    Irusen, Hayley; Rohwer, Anke C; Steyn, D Wilhelm; Young, Taryn

    2015-08-17

    The benefits of breastfeeding are well known, and the World Health Organization recommends exclusive breastfeeding for the first six months of life and continuing breastfeeding to age two. However, many women stop breastfeeding due to lactational breast abscesses. A breast abscess is a localised accumulation of infected fluid in breast tissue. Abscesses are commonly treated with antibiotics, incision and drainage (I&D) or ultrasound-guided needle aspiration, but there is no consensus on the optimal treatment. To assess the effects of different treatments for the management of breast abscesses in breastfeeding women. We searched the Cochrane Pregnancy and Childbirth Group's Trial Register (27 February 2015). In addition we searched African Journals Online (27 February 2015), Google Scholar (27 February 2015), ProQuest Dissertations and Theses Databases (27 February 2015) and the WHO International Clinical Trials Registry Platform (ICTRP) search portal (27 February 2015). We also checked reference lists of retrieved studies and contacted experts in the field as well as relevant pharmaceutical companies. Randomised controlled trials (RCTs) investigating any intervention for treating lactational breast abscesses compared with any other intervention. Studies published in abstract form, quasi-RCTs and cluster-RCTs were not eligible for inclusion. Two review authors independently assessed studies for inclusion, assessed risk of bias and extracted data. Data were checked for accuracy. We included six studies. Overall, trials had an unclear risk of bias for most domains due to poor reporting. Two studies did not stratify data for lactational and non-lactational breast abscesses, and these studies do not contribute to the results. This review is based on data from four studies involving 325 women. Needle aspiration (with and without ultrasound guidance) versus incision and drainage (I&D) Mean time (days) to complete resolution of breast abscess (three studies) - there was

  17. Correlation between proton pump inhibitors and risk of pyogenic liver abscess.

    PubMed

    Lin, Hsien-Feng; Liao, Kuan-Fu; Chang, Ching-Mei; Lin, Cheng-Li; Lai, Shih-Wei

    2017-08-01

    Little is known about the relationship between proton pump inhibitors use and pyogenic liver abscess. The objective of this study was to evaluate the correlation between proton pump inhibitors use and pyogenic liver abscess in Taiwan. This was a population-based case-control study using the database of the Taiwan National Health Insurance Program since 2000 to 2011. Subjects aged 20 to 84 who experienced their first episode of pyogenic liver abscess were enrolled as the case group (n = 1372). Randomly selected subjects aged 20 to 84 without pyogenic liver abscess were enrolled as the control group (n = 1372). Current use, early use, and late use of proton pump inhibitors was defined as subjects whose last one tablet for proton pump inhibitors was noted ≤30 days, between 31 to 90 days and ≥91 days before the date of admission for pyogenic liver abscess. Subjects who never received a prescription for proton pump inhibitors were defined as nonusers of proton pump inhibitors. A multivariable unconditional logistic regression model was used to measure the odds ratio and 95% confidence interval to evaluate the correlation between proton pump inhibitors use and pyogenic liver abscess. After adjusting for confounders, the adjusted odds ratio of pyogenic liver abscess was 7.59 for subjects with current use of proton pump inhibitors (95% confidence interval 5.05, 11.4), when compared with nonusers. Current use of proton pump inhibitors is associated with a greater risk of pyogenic liver abscess.

  18. A case of a brain stem abscess with a favorable outcome

    PubMed Central

    Bulthuis, Vincent J.; Gubler, Felix S.; Teernstra, Onno P. M.; Temel, Yasin

    2015-01-01

    Background: A brain stem abscess is a rare and severe medical condition. Here, we present a rare case of a brain stem abscess in a young pregnant woman, requiring acute stereotactic intervention. Case Description: A 36-year-old woman presented with a headache, nausea, and vomiting, and computed tomography showed a space-occupying lesion in the brain stem. She became shortly after comatose, and we decided to perform an acute stereotactic aspiration of the abscess. Soon after surgery, her neurological condition improved dramatically. Conclusion: A brainstem abscess is a life-threatening condition with a potentially good outcome if treated adequately. PMID:26543670

  19. Hepatic abscess linked to oral actinomycetes: a case report.

    PubMed

    De Farias, Deborah G

    2015-01-01

    Organ abscesses are rare, life-threatening complications that can be caused by bacteremia from oral infections. Metastatic infection is a well-established concept. Dental and periapical infections can cause infections in distant organs and tissues. The frequency of these systemic infections and systemic diseases is open to debate, as some patients are more susceptible to infections than others. This article presents the case report of a 52-year-old woman who was hospitalized with a hepatic abscess after a routine periodontal maintenance procedure. The patient had poor oral health, involving several nonrestorable teeth, multiple failed endodontic treatments, and asymptomatic chronic periapical pathologies. Her dental history included previous diagnoses of moderate generalized chronic periodontitis and advanced localized periodontitis. It was possible that bacteremia developed during her most recent dental treatment, leading to the hepatic abscess. Systemic antibiotic therapy, drainage of the hepatic abscess, and oral rehabilitation resulted in complete recovery.

  20. [Non-operation management of 12 cases with brain abscess demonstrated by CT scan].

    PubMed

    Long, J

    1990-12-01

    This paper reported 12 cases with brain abscess demonstrated by CT scan. Using antibiotic management without surgical intervention, in 10 cases the curative effects were satisfactory. The paper indicated that CT scan was very useful in prompt and correct diagnosis of brain abscess and with sequential CT scan medical therapy was feasible. It is significant in treatment of brain abscess especially for the patients who have a poor general condition, have the brain abscess located in important functional area or have multiple abscesses so that the operation is difficult for them.

  1. Further refinement of the Escherichia coli brain abscess model in rat.

    PubMed

    Nazzaro, J M; Pagel, M A; Neuwelt, E A

    1992-09-01

    The rat brain abscess model provides a substrate for the modeling of delivery of therapeutic agents to intracerebral mass lesions. We now report refinement of the Escherichia coli brain abscess model in rat. A K1 surface antigen-negative E. coli isolated from human blood culture was stereotaxically inoculated into deep brain sites. Histopathologic analyses and quantitative cultures demonstrated the consistent production of lesions. No animal in this consecutive series developed meningitis, ventriculitis or sepsis. By contrast, prior experience with E. coli abscess production resulted in 25% failure rate of abscess production or death from sepsis. This improvement in the model may be attributable to specific characteristics of the bacteria used, modification of the inoculation method or the intracerebral placement technique. The present work suggests a reliable and consistent brain abscess model, which may be further used to study brain suppuration.

  2. Gastric subepithelial lesion complicated with abscess: Case report and literature review

    PubMed Central

    Kim, Sung Bum; Oh, Myung Jin; Lee, Si Hyung

    2015-01-01

    Gastric abscess is a localized pyogenic inflammation of the gastric wall, which is a rare form of suppurative gastritis. The rarity of gastric abscess may be associated with the difficulty of early diagnosis and high mortality as a result. In general, subepithelial lesions (SELs) of the stomach are incidentally detected during the course of upper endoscopy without specific clinical symptoms and signs. However, some gastric SELs present rarely as a form of hemorrhage, obstruction, perforation, and abscess. Here we report a 45-year-old man with gastric SEL presenting as a gastric abscess, which was diagnosed as an ectopic pancreas of the stomach, along with a review of the literature. Although gastric SEL presenting as an abscess is known as a serious and life-threatening lesion, the patient made a complete recovery through surgical resection as well as medical treatment. PMID:26034377

  3. Pediatric Lung Abscess: Immediate Diagnosis by Point-of-Care Ultrasound.

    PubMed

    Kraft, Clara; Lasure, Benjamin; Sharon, Melinda; Patel, Paulina; Minardi, Joseph

    2018-06-01

    The diagnosis of lung abscess can be difficult to make and often requires imaging beyond plain chest x-ray. The decision to further image with computed tomography should be weighed against the risks of radiation exposure, especially in pediatric patients. In addition, the cost and potential impact on length of stay from obtaining computed tomography scans should be considered. In this report, we describe a case of lung abscess made immediately using point-of-care ultrasound in the emergency department. To our knowledge, there are no previous cases describing lung abscess diagnosed by point-of-care ultrasound. This case report aims to describe a case of pediatric lung abscess, review the ultrasound findings, and discuss relevant literature on the topic.

  4. [Orbital cellulitis complicated by subperiosteal abscess due to Streptococcus pyogenes infection].

    PubMed

    Ruíz Carrillo, José Daniel; Vázquez Guerrero, Edwin; Mercado Uribe, Mónica Cecilia

    Orbital cellulitis is an infectious disease that is very common in pediatric patients, in which severe complications may develop. Etiological agents related to this disease are Haemophilus influenzae B, Staphylococcus aureus, Streptococcus pneumoniae and Moraxella catarrhalis, which correspond to 95% of cases. Moreover, Streptococcus beta hemolytic and anaerobic microorganisms may also be present corresponding to < 5% of the cases. We present an uncommon case of cellulitis complicated by sub-periosteal abscess caused by Streptococcus pyogenes (Group A beta hemolytic streptococcus). A 9-year-old male patient with a history of deficit disorder and hyperactivity since 5 years of age. His current condition started with erythema in the external edge of the right eye, increase in peri-orbicular volume with limitation of eyelid opening, progression to proptosis, pain with eye movements and conjunctival purulent discharge. Image studies reported subperiosteal abscess and preseptal right with extraocular cellulitis. The patient started with empirical antibiotic treatment, surgical drainage and culture of purulent material from which Streptococcus pyogenes was isolated. Due to the implementation of vaccination schemes against H. influenza and S. pneumoniae since the 90s, the cases by these pathogens have decreased, causing new bacteria to take place as the cause of the infection. The importance of considering S. pyogenes as an etiology of orbital cellulitis is the rapid progression to abscess formation, and the few cases described in the literature. Copyright © 2017 Hospital Infantil de México Federico Gómez. Publicado por Masson Doyma México S.A. All rights reserved.

  5. Herpes zoster correlates with pyogenic liver abscesses in Taiwan.

    PubMed

    Mei-Ling, Shen; Kuan-Fu, Liao; Sung-Mao, Tsai; Cheng-Li, Lin Ms; Shih-Wei, Lai

    2016-12-01

    The purpose of the paper was to explore the relationship between herpes zoster and pyogenic liver abscesses in Taiwan. This was a nationwide cohort study. Using the database of the Taiwan National Health Insurance Program, there were 33049 subjects aged 20-84 years who were newly diagnosed with herpes zoster from 1998 to 2010 that were selected for our study, and they were our herpes zoster group. 131707 randomly selected subjects without herpes zoster were our non-herpes zoster group. Both groups were matched by sex, age, other comorbidities, and the index year of their herpes zoster diagnosis. The incidence of pyogenic liver abscesses at the end of 2011 was then estimated. The multivariable Cox proportional hazard regression model was used to estimate the hazard ratio and 95% confidence interval for pyogenic liver abscesses associated with herpes zoster and other comorbidities. The overall incidence rate was 1.38-fold higher in the herpes zoster group than in the non-herpes zoster group (4.47 vs. 3.25 per 10000 person-years, 95% confidence interval 1.32, 1.44). After controlling for potential confounding factors, the adjusted hazard ratio of pyogenic liver abscesses was 1.34 in the herpes zoster group (95% confidence interval 1.05, 1.72) when compared with the non-herpes zoster group. Sex (in this case male), age, presence of biliary stones, chronic kidney diseases, chronic liver diseases, cancers, and diabetes mellitus were also significantly associated with pyogenic liver abscesses. Patients with herpes zoster are associated with an increased hazard of developing pyogenic liver abscesses.

  6. Pathogenicity of exopolysaccharide-producing Actinomyces oris isolated from an apical abscess lesion

    PubMed Central

    Yamane, K; Nambu, T; Yamanaka, T; Ishihara, K; Tatami, T; Mashimo, C; Walker, C B; Leung, K-P; Fukushima, H

    2013-01-01

    Aim To demonstrate a capacity for producing exopolysaccharides (EPSs) and an ability to form biofilm on abiotic materials of Actinomyces oris strain K20. Methodology The productivity of EPSs and the ability to form biofilm of strain K20 were evaluated by measuring viscosity of spent culture media and by scanning electron microscopy (SEM) and the biofilm assay on microtitre plates, respectively. High-performance liquid chromatography was used to determine the chemical composition of the viscous materials. To examine the role of the viscous materials attributable to the pathogenicity in this organism, the ability of strain K20 to induce abscess formation was compared in mice to that of ATCC 27044. Results The viscosity of the spent culture media of K20 was significantly higher than that of ATCC 27044. Strain K20 showed dense meshwork structures around the cells and formed biofilms on microtitre plates, whereas ATCC 27044 did not. Chemical analysis of the viscous materials revealed that they were mainly composed of neutral sugars with mannose constituting 77.5% of the polysaccharides. Strain K20 induced persistent abscesses in mice lasting at least 5 days at a concentration of 108 cells mL−1, whereas abscesses induced by ATCC 27044 healed and disappeared or decreased in size at day 5. Conclusions Strain K20 produced EPSs, mainly consisting of mannose, and formed biofilms. This phenotype might play an important role for A. oris to express virulence through the progression of apical periodontitis. PMID:22900599

  7. Pathogenicity of exopolysaccharide-producing Actinomyces oris isolated from an apical abscess lesion.

    PubMed

    Yamane, K; Nambu, T; Yamanaka, T; Ishihara, K; Tatami, T; Mashimo, C; Walker, C B; Leung, K-P; Fukushima, H

    2013-02-01

    To demonstrate a capacity for producing exopolysaccharides (EPSs) and an ability to form biofilm on abiotic materials of Actinomyces oris strain K20. The productivity of EPSs and the ability to form biofilm of strain K20 were evaluated by measuring viscosity of spent culture media and by scanning electron microscopy (SEM) and the biofilm assay on microtitre plates, respectively. High-performance liquid chromatography was used to determine the chemical composition of the viscous materials. To examine the role of the viscous materials attributable to the pathogenicity in this organism, the ability of strain K20 to induce abscess formation was compared in mice to that of ATCC 27044. The viscosity of the spent culture media of K20 was significantly higher than that of ATCC 27044. Strain K20 showed dense meshwork structures around the cells and formed biofilms on microtitre plates, whereas ATCC 27044 did not. Chemical analysis of the viscous materials revealed that they were mainly composed of neutral sugars with mannose constituting 77.5% of the polysaccharides. Strain K20 induced persistent abscesses in mice lasting at least 5 days at a concentration of 10(8) cells mL(-1), whereas abscesses induced by ATCC 27044 healed and disappeared or decreased in size at day 5. Strain K20 produced EPSs, mainly consisting of mannose, and formed biofilms. This phenotype might play an important role for A. oris to express virulence through the progression of apical periodontitis. © 2012 International Endodontic Journal.

  8. Male breast cancer is rare: an initial presentation may be as an abscess

    PubMed Central

    Ventham, N T; Hussien, M I

    2010-01-01

    Breast cancer in men is rare. Breast cancer presenting initially as an abscess has been described only a handful of times in the literature. We present the first described case of invasive adenocarcinoma presenting as an abscess in a man. An 80-year-old diabetic man presented with symptoms typical of a breast abscess. The abscess failed to respond to percutaneous therapy and excision of breast abscess was performed. Histology revealed an invasive carcinoma. He went on to have a mastectomy. Histology should be obtained from breast abscesses not resolving within 2 months of initial percutaneous therapy. Histology could be obtained by ultrasound-guided fine-needle aspiration (FNA), core or vacuum assisted biopsy, or by formal incision and drainage. PMID:22767683

  9. Idiopathic granulomatous mastitis: a case report of breast abscess.

    PubMed

    Olsen, Molly L; Dilaveri, Christina A

    2011-08-04

    Idiopathic granulomatous mastitis (IGM) is an uncommon breast disease often mistaken for breast infection or abscess. We present a case of IGM diagnosed after prolonged ineffective treatment of presumed infectious mastitis with abscess. Once the diagnosis was made with biopsy and further evaluation to exclude other causes of granulomatous disease, sinus tract debridement and closure by secondary intent resulted in resolution of symptoms in our patient. Many cases of IGM require immunosuppression with steroids, methotrexate or extensive surgery. To prevent morbidity, IGM should be considered in the differential diagnosis when presumed infectious mastitis with breast abscess does not respond to usual treatment.

  10. Lung abscess caused by Streptococcus pneumoniae serotype 6B.

    PubMed

    Ito, Yuhei; Toyoshima, Hirokazu; Suzuki, Takehiro; Iwamoto, Keisuke; Sasano, Hajime; Itani, Hidetoshi; Kondo, Shigeto; Tanigawa, Motoaki

    2018-01-01

    Lung abscess has been considered to be a rare complication of pneumococcal infection, and most cases are reported to be Streptococcus pneumoniae serotype 3. A 67-year-old man presented with fever and was diagnosed to have lung abscess caused by S. pneumoniae serotype 6B. The minimal inhibitory concentration (MIC) of penicillin for the isolate was 1 μg/mL. He was treated with high-dose intravenous sulbactam/ampicillin as definitive therapy based on susceptibility testing for S. pneumoniae and recovered successfully without surgical intervention. S. pneumoniae serotype 6B can cause lung abscess.

  11. An unusual case of complicated temporal lobe abscess following tympanomastoidectomy

    PubMed Central

    Yin, Tuanfang; Ren, Jihao; Lu, Yongde; Chen, Xing; Wang, Yaowen; Huang, Fengying

    2013-01-01

    We report a unusual case of complicated temporal lobe abscess following tympanomastoidectomy in a 26-year-old Chinese man here. The patient complained of binaural recurrent purulent discharge accompanied by hearing loss more than 10 years, then he received a right tympanomastoidectomy three months ago, but 3 weeks after surgery, he started to experience fierce headache and nausea and so on. The CT and MRI suggested the diagnosis of right temporal lobe abscess and then right temporal lobe abscess was excised. The patient was successfully treated with a right temporal lobe abscess resection and a radical right mastoidectomy. Although the cerebral abscess following radical tympanomastoidectomy are extremely rare, we should pay attention to it. we suggest the main reasons was still suffering from purulent discharge in the ear after the first tympanomastoidectomy, the granulation and cholesteatoma failed to completely remove during the first operation. and even resulted in substantial bone defect. It is well-known that good drainage is a key to reduce intra-cranial complications. PMID:23826430

  12. Infectious arteritis of the internal carotid artery complicating retropharyngeal abscess.

    PubMed

    Lisan, Q; Tran, H; Verillaud, B; Herman, P

    2016-02-01

    Retropharyngeal abscess is a well-known entity in children, but can also occur in adults. The two main vascular complications are vascular compression and pseudoaneurysm, while infectious arteritis of the internal carotid artery is exceptional. The authors describe a case of a retropharyngeal abscess in an adult woman complicated by infectious arteritis of the internal carotid artery. This rare complication was treated by endovascular occlusion of the internal carotid artery and incision and drainage of the abscess in combination with antibiotic and anticoagulant therapy. The patient did not present any neurological sequelae and follow-up MRI did not reveal any signs of vascular or neurological complications. This case highlights the importance of thorough examination of imaging performed in the context of deep neck space abscess to detect signs of vascular involvement. Treatment must be aggressive in view of the life-threatening risk of arterial rupture or septic embolism. This is the first reported case of infectious arteritis involving the internal carotid artery complicating retropharyngeal abscess. Copyright © 2015 Elsevier Masson SAS. All rights reserved.

  13. Transbronchial Catheter Drainage via Fiberoptic Bronchoscope in Intractable Lung Abscess

    PubMed Central

    Jeong, Man Pyo; Kim, Woo Sung; Han, Sung Koo; Shim, Young Soo; Kim, Keun Youl; Han, Yong Chol

    1989-01-01

    The use of the fiberoptic bronchoscope as a drainage procedure for lung abscess has become more and more widespread. We have recently adopted the technique of inserting a simple polyethylene catheter through the flexible fiberoptic bronchoscope into the abscess cavity of 11 patients with lung absess. All cases had not responded to aggressive postural drainage and adequate antibiotic therapy for at least a week. The results were as follows: Among 11 patients, the therapeutic response was dramatic in 6 patients.In the successful group, the abscess sizes were greater than 8cm in diameter and the air-fluid levels were higher than two-thirds of the cavity.Additional diagnoses, other than bacterial lung abscess, could be made in 2 cases when otherwise the diagnosis would have remained in doubt. The authors suggest that catheter drainage via fiberoptic bronchoscpope is an effective treatment modality in the large lung abscess with a high air-fluid level which is intractable to other medical approaches, and it is also a safe procedure. PMID:2487405

  14. The Mammotome biopsy system is an effective treatment strategy for breast abscess.

    PubMed

    Wang, Keren; Ye, Yuqin; Sun, Guang; Xu, Zheli

    2013-01-01

    Although most breast abscesses can be treated with the current first-line treatment of antibiotics by needle aspiration, the therapeutic duration is lengthy and recurrences often occur. Therefore, we aimed to investigate the clinical efficacy of the Mammotome biopsy system (Johnson & Johnson Corp., New Brunswick, NJ) in a cohort of patients with breast abscesses. Forty lactating and 30 nonlactating breast abscess patients with unfavorable outcomes with antibiotic treatment and/or needle aspiration failure were recruited and treated with the Mammotome biopsy system. Skin inflammation of all patients disappeared within 6 days with no recurrence. The clinical outcomes in patients with an abscess size ≤ 3.5 cm was significantly better than those with an abscess size >3.5 cm (P = .025). The Mammotome biopsy system, an effective treatment strategy that is minimally invasive and less damaging, in combination with appropriate antibiotic therapy can be used safely as the first-line approach to breast abscess management. Copyright © 2013 Elsevier Inc. All rights reserved.

  15. A rare case of de novo gigantic ovarian abscess within an endometrioma.

    PubMed

    Hameed, Aisha; Mehta, Vaishali; Sinha, Prabha

    2010-06-01

    We are reporting a rare case of de novo ovarian abscess in an endometrioma. Ovarian abscess within an endometrioma is a rare gynecological problem, but de novo abscess in the endometrioma is even rarer. Most of the ovarian abscesses develop in the endometriomas following interventions, e.g., aspiration, pelvic surgery, and oocyte retrieval. We are presenting a case of a spontaneous giant abscess in a large ovarian cyst in a nulliparous woman who presented with acute abdomen. Patient was treated in a district general hospital with multidisciplinary approach. Thirteen liters of the pus were drained. She has had a sub total (supra cervical) hysterectomy and bilateral salpingo-oophorectomy (BSO) performed. Histology of the abscess wall confirmed endometriotic nature of the cyst. Patient made an uneventful recovery and was discharged home on the 14th postoperative day. This case highlights that endometrioma and its complication can present as a surgical emergency and should be dealt as one.

  16. A Rare Case of De Novo Gigantic Ovarian Abscess within an Endometrioma

    PubMed Central

    Hameed, Aisha; Mehta, Vaishali; Sinha, Prabha

    2010-01-01

    We are reporting a rare case of de novo ovarian abscess in an endometrioma. Ovarian abscess within an endometrioma is a rare gynecological problem, but de novo abscess in the endometrioma is even rarer. Most of the ovarian abscesses develop in the endometriomas following interventions, e.g., aspiration, pelvic surgery, and oocyte retrieval. We are presenting a case of a spontaneous giant abscess in a large ovarian cyst in a nulliparous woman who presented with acute abdomen. Patient was treated in a district general hospital with multidisciplinary approach. Thirteen liters of the pus were drained. She has had a sub total (supra cervical) hysterectomy and bilateral salpingo-oophorectomy (BSO) performed. Histology of the abscess wall confirmed endometriotic nature of the cyst. Patient made an uneventful recovery and was discharged home on the 14th postoperative day. This case highlights that endometrioma and its complication can present as a surgical emergency and should be dealt as one. PMID:20589187

  17. Fiber optic sensing technology for detecting gas hydrate formation and decomposition.

    PubMed

    Rawn, C J; Leeman, J R; Ulrich, S M; Alford, J E; Phelps, T J; Madden, M E

    2011-02-01

    A fiber optic-based distributed sensing system (DSS) has been integrated with a large volume (72 l) pressure vessel providing high spatial resolution, time-resolved, 3D measurement of hybrid temperature-strain (TS) values within experimental sediment-gas hydrate systems. Areas of gas hydrate formation (exothermic) and decomposition (endothermic) can be characterized through this proxy by time series analysis of discrete data points collected along the length of optical fibers placed within a sediment system. Data are visualized as an animation of TS values along the length of each fiber over time. Experiments conducted in the Seafloor Process Simulator at Oak Ridge National Laboratory clearly indicate hydrate formation and dissociation events at expected pressure-temperature conditions given the thermodynamics of the CH(4)-H(2)O system. The high spatial resolution achieved with fiber optic technology makes the DSS a useful tool for visualizing time-resolved formation and dissociation of gas hydrates in large-scale sediment experiments.

  18. Fiber optic sensing technology for detecting gas hydrate formation and decomposition

    NASA Astrophysics Data System (ADS)

    Rawn, C. J.; Leeman, J. R.; Ulrich, S. M.; Alford, J. E.; Phelps, T. J.; Madden, M. E.

    2011-02-01

    A fiber optic-based distributed sensing system (DSS) has been integrated with a large volume (72 l) pressure vessel providing high spatial resolution, time-resolved, 3D measurement of hybrid temperature-strain (TS) values within experimental sediment-gas hydrate systems. Areas of gas hydrate formation (exothermic) and decomposition (endothermic) can be characterized through this proxy by time series analysis of discrete data points collected along the length of optical fibers placed within a sediment system. Data are visualized as an animation of TS values along the length of each fiber over time. Experiments conducted in the Seafloor Process Simulator at Oak Ridge National Laboratory clearly indicate hydrate formation and dissociation events at expected pressure-temperature conditions given the thermodynamics of the CH4-H2O system. The high spatial resolution achieved with fiber optic technology makes the DSS a useful tool for visualizing time-resolved formation and dissociation of gas hydrates in large-scale sediment experiments.

  19. Does pilonidal abscess heal quicker with off-midline incision and drainage?

    PubMed

    Webb, P M; Wysocki, A P

    2011-06-01

    No clinical trials have been done to guide the surgeon in the optimal technique of draining a pilonidal abscess. The aim of our study was to investigate whether the location of the incision influences wound healing. Electronic records from the surgical database at our 200-bed district general hospital were reviewed for operative technique (midline vs. lateral) for patients who underwent incision and drainage for acute pilonidal abscess between January 2003 and February 2010. These patients were admitted from the Emergency Department with a pilonidal abscess, underwent operative drainage, and returned for follow-up. The main outcome measure was wound healing time. Two hundred and forty-three pilonidal abscesses were drained, 134 with a lateral and 74 with a midline incision. All patients underwent simple longitudinal incision. No patient underwent de-roofing, marsupialisation, or closure. Forty-eight patients with midline drainage who returned for follow-up were matched for gender, age, and microbiology culture results with patients who underwent lateral drainage. Almost all were drained under general anesthesia with a median postoperative stay of 1 day. The overall length of follow-up was the same in both groups (P = 0.13). Abscesses that did not heal were followed-up for the same period of time irrespective of incision type (P = 0.48). Abscesses that healed after midline incision took approximately 3 weeks longer than those drained via a lateral incision (P = 0.02). Our study has limitations since it was a retrospective study that did not capture patients whose abscess drained spontaneously or were drained in the emergency department. Pilonidal abscess should be drained away from the midline.

  20. Idiopathic Subareolar Breast Abscess in a Male Patient

    PubMed Central

    Ranga, Upasana; Veeraiyan, Saveetha

    2015-01-01

    We present a case of left breast abscess in a young male patient who presented with acute onset swelling left breast. Imaging studies helped in accurate diagnosis and the case was managed by subareolar incision and drainage. Subareolar breast abscess is an uncommon entity in male and should be kept as a differential diagnosis for male breast swellings. PMID:25738061

  1. A rare presentation of disseminated tuberculosis: Prostatic abscess.

    PubMed

    Verma, Ajay; Singh, Anubhuti; Kishore, Kislay; Kant, Surya

    2017-10-01

    Involvement of the prostate by tuberculosis (TB) occurs rarely and tuberculosis prostate abscess is an even rarer occurrence. It has been reported in immunocompromised patients, mainly human immunodeficiency virus seropositive individuals. We are reporting a case of tuberculosis prostatic abscess in an immunocompetent patient with relapse of TB. Copyright © 2016 Tuberculosis Association of India. Published by Elsevier B.V. All rights reserved.

  2. Periodontal abscess during supportive periodontal therapy: a review of the literature.

    PubMed

    Silva, Geraldo L M; Soares, Rodrigo V; Zenóbio, Elton G

    2008-09-01

    The aim of this review is to present the current status of the occurrence and management of a periodontal abscess during supportive periodontal therapy (SPT). A periodontal abscess depicts typical features and has been described in patients under SPT in clinical trials. Common periodontal pathogens have been observed in this lesion and some etiologic factors may be responsible for its recurrence. This condition can be isolated or associated with factors that can change the prognosis of affected teeth. Although it has been frequently noticed in untreated periodontitis, the periodontal abscess can also occur in patients under SPT and has been regarded as one of the possible complications of SPT. Patients with a high susceptibility to periodontal disease lost more teeth than those with a healthy periodontium. Early diagnosis and appropriate intervention for periodontal abscesses in patients under SPT are extremely important for the management of the periodontal abscess since this condition can lead to loss of the involved tooth. A single case of a tooth diagnosed with periodontal abscess that responds favorably to adequate treatment does not seem to affect its longevity. An accurate diagnosis and adequate treatment can preserve the longevity of affected teeth.

  3. Renal abscess in a child with sickle cell anemia.

    PubMed

    Taksande, Amar M; Vilhekar, K Y

    2009-03-01

    Renal abscess is rare in children and the usual presenting features include fever, lumbar pain, abdominal pain and occasional flank mass. Renal ultrasonography facilitates an early diagnosis and helps in percutaneous drainage. We herewith report on a child with sickle cell anemia who developed a renal abscess.

  4. [Recurrent neck abscess due to a branchial cleft remnant].

    PubMed

    Kruijff, Schelto; Mastboom, Walter J; Vriens, Menno R; Sidhu, Stan B; Delbridge, Leigh W

    2013-01-01

    Abscesses arising from a third or fourth branchial cleft remnant are uncommon clinical entities and are often not recognised in a timely manner. In a 33-year-old female patient with a recurrent abscess in the left side of her neck, the cause turned out to be a fistula in the third branchial cleft remnant. She was treated initially with antibiotics and prednisone without adequate results. When the abscess was finally surgically drained, she became very ill and was admitted to the ICU with sepsis and multiple organ failure. She was discharged from hospital after six weeks. Four months later, a third-branchial cleft remnant was found during pharyngoscopy, immediately after which the cleft remnant fistula was excised and an ipsilateral hemi-thyroidectomy was performed. In young patients with recurring peri-thyroidal abscesses, a branchial cleft remnant should be considered a causative factor; this could avoid high morbidity and a delay in the appropriate treatment.

  5. Spontaneous Intrahepatic Type II Gallbladder Perforation: A Rare Cause of Liver Abscess – Case Report

    PubMed Central

    Singh, Kumkum; Singh, Amit; Vidyarthi, Shivaji H; Jindal, Satyaprakash; Thounaojam, Chandra Kumar

    2013-01-01

    A liver abscess formation is a rare complication of a gallbladder perforation, with a cholecystohepatic communication. Niemeier, in 1934, classified free gallbladder perforations and generalised biliary peritonitis as an acute or a Type I gallbladder perforation, a pericholecystic abscess and localised peritonitis as a subacute or a Type II gallbladder perforation, and cholecystoenteric fistulas as chronic or Type III gallbladder perforations. We are describing a 50–year–old male patient who presented with right upper quadrant pain and was found to have an intrahepatic perforation of the gallbladder. Our patient had a Type II perforation. We have discussed the diagnostic work-up and the management of this rare entity. Due to the high mortality that can be caused by a delay in making the correct diagnosis, a gallbladder perforation represents a special diagnostic and surgical challenge. PMID:24179927

  6. Star Formation and Gas Dynamics in Galactic Disks: Physical Processes and Numerical Models

    NASA Astrophysics Data System (ADS)

    Ostriker, Eve C.

    2011-04-01

    Star formation depends on the available gaseous ``fuel'' as well as galactic environment, with higher specific star formation rates where gas is predominantly molecular and where stellar (and dark matter) densities are higher. The partition of gas into different thermal components must itself depend on the star formation rate, since a steady state distribution requires a balance between heating (largely from stellar UV for the atomic component) and cooling. In this presentation, I discuss a simple thermal and dynamical equilibrium model for the star formation rate in disk galaxies, where the basic inputs are the total surface density of gas and the volume density of stars and dark matter, averaged over ~kpc scales. Galactic environment is important because the vertical gravity of the stars and dark matter compress gas toward the midplane, helping to establish the pressure, and hence the cooling rate. In equilibrium, the star formation rate must evolve until the gas heating rate is high enough to balance this cooling rate and maintain the pressure imposed by the local gravitational field. In addition to discussing the formulation of this equilibrium model, I review the current status of numerical simulations of multiphase disks, focusing on measurements of quantities that characterize the mean properties of the diffuse ISM. Based on simulations, turbulence levels in the diffuse ISM appear relatively insensitive to local disk conditions and energetic driving rates, consistent with observations. It remains to be determined, both from observations and simulations, how mass exchange processes control the ratio of cold-to-warm gas in the atomic ISM.

  7. A novel vaccine targeting Fusobacterium nucleatum against abscesses and halitosis

    PubMed Central

    Liu, Pei-Feng; Haake, Susan Kinder; Gallo, Richard L.; Huang, Chun-Ming

    2011-01-01

    An abscess in a gum pocket, resulting from bacterial infection, is a common source of chronic halitosis. Although antibiotics are generally prescribed for abscesses, they require multiple treatments with risks of creating resistant bacterial strains. Here we develop a novel vaccine using ultraviolet-inactivated Fusobacterium nucleatum (F. nucleatum), a representative oral bacterium for halitosis. A gum pocket model, established by continuous inoculation of F. nucleatum, was employed to validate the vaccine potency. Mice immunized with inactivated F. nucleatum effectively minimized the progression of abscesses, measured by swollen tissues of gum pockets. Most notably, the immunized mice were capable of eliciting neutralizing antibodies against the production of volatile sulfur compounds of F. nucleatum. The novel vaccine inducing protective immunity provides an alternative option to conventional antibiotic treatments for chronic halitosis associated with abscesses. PMID:19162109

  8. [Breast abscess with Salmonella typhi and review of the literature].

    PubMed

    Delori, M; Abgueguen, P; Chennebault, J-M; Pichard, E; Fanello, S

    2007-11-01

    We report the case of a 54-year-old woman who presented with breast abscess, which appeared through a common alimentary toxi-infection with Salmonella Typhi, infection, which implied twelve patients having attended the same restaurant. With around hundred native cases a year in France, typhoid fever is not a very frequent toxi-infection. Among the known extra-intestinal manifestations of Salmonella infections, the breast abscess remains rare and the literature revealed less than ten published cases, including some revealed the disease. In our observation, the imputability of S. Typhi was retained based on the chronology of the clinical signs, specific treatments, and the successful outcome under antibiotherapy, in spite of the negativity of the breast abscess bacteriological samples. We also analyze rare cases of breast abscess due to S. Typhi found in the literature.

  9. Increased Levels of S100A8/A9 in Patients with Peritonsillar Abscess: A New Promising Diagnostic Marker to Differentiate between Peritonsillar Abscess and Peritonsillitis.

    PubMed

    Spiekermann, Christoph; Russo, Antonella; Stenner, Markus; Rudack, Claudia; Roth, Johannes; Vogl, Thomas

    2017-01-01

    Peritonsillar abscess (PTA) is a very frequent reason for urgent outpatient consultation and otolaryngological hospital admission. Early, correct diagnosis and therapy of peritonsillar abscess are important to prevent possible life-threatening complications. Based on physical examinations, a reliable differentiation between peritonsillar cellulitis and peritonsillar abscess is restricted. A heterodimeric complex called calprotectin consists of the S100 proteins A8 and A9 (S100A8/A9) and is predominantly expressed not only in monocytes and neutrophils but also in epithelial cells. Due to its release by activated phagocytes at local sites of inflammation, we assumed S100A8/A9 to be a potential biomarker for peritonsillar abscess. We examined serum and saliva of patients with peritonsillitis, acute tonsillitis, peritonsillar abscess, and healthy controls and found significantly increased levels of S100A8/A9 in patients with PTA. Furthermore, we could identify halitosis, trismus, uvula edema, and unilateral swelling of the arched palate to be characteristic symptoms for PTA. Using a combination of these characteristic symptoms and S100A8/A9 levels, we developed a PTA score as an objective and appropriate tool to differentiate between peritonsillitis and peritonsillar abscess with a sensitivity of 92% and specificity of 93%.

  10. Fusobacterial liver abscess: a case report and review of the literature.

    PubMed

    Jayasimhan, Dilip; Wu, Linus; Huggan, Paul

    2017-06-20

    Fusobacteriae are facultative anaerobic gram-negative bacilli which cause a range of invasive infections, amongst which pyogenic liver abscesses are rare. We describe a case of Fusobacterium nucleatum liver abscess and review the relevant literature. A 51-year-old lady presented with a 4-day history of abdominal pain, diarrhoea, fever, rigors, and lethargy. Imaging revealed an abscess which was drained. Cultures of the blood and abscess aspirate grew Fusobacterium nucleatum and Prevotella pleuritidis respectively. She achieved full recovery following treatment. A MEDLINE search was undertaken using free-text and Medical Subject Headings (MeSH), keywords "Fusobacterium" and "Liver abscess". Non-English language reports and cases without confirmed growth of Fusobacterium species were excluded. Additional cases were identified by surveying the references of each report and by using the same keywords in a web-based search. Forty-eight cases were identified, 41 in men. The median age was 42.5, with an interquartile range of 33. F. nucleatum and F. necrophorum were in involved in 22 cases each, and 4 cases were not further speciated. Among cases of F. nucleatum liver abscess, nine were attributed to periodontal disease, four to lower gastrointestinal tract disease, one to Lemierre's Syndrome, and eight were considered cryptogenic. All patients treated made a full recovery. Antimicrobial treatment duration ranged from 2 weeks to 6 months with a median of 6 weeks. Fusobacterium nucleatum is an uncommon cause of liver abscess generally associated with good clinical outcomes with contemporary medical and surgical care.

  11. Sonographic diagnosis of abscess following breast-conserving surgery with insertion of nonabsorbable mesh.

    PubMed

    Song, Sung Eun; Seo, Bo Kyoung; Son, Gil-Soo; Kim, Young-Sik

    2014-09-01

    Immediate mesh insertion has been recently used for breast reconstruction after breast-conserving surgery. We report a case of abscess formation following immediate nonabsorbable mesh insertion with breast-conserving surgery. In this article, we demonstrate multimodal breast imaging features and pathologic correlations of the case. In addition, we illustrate characteristic sonographic findings of nonabsorbable mesh fibers to differentiate them from a gossypiboma caused by a retained surgical sponge or tumor recurrence. © 2014 Wiley Periodicals, Inc.

  12. Rapid gas hydrate formation processes: Will they work?

    DOE PAGES

    Brown, Thomas D.; Taylor, Charles E.; Bernardo, Mark P.

    2010-06-07

    Researchers at DOE’s National Energy Technology Laboratory (NETL) have been investigating the formation of synthetic gas hydrates, with an emphasis on rapid and continuous hydrate formation techniques. The investigations focused on unconventional methods to reduce dissolution, induction, nucleation and crystallization times associated with natural and synthetic hydrates studies conducted in the laboratory. Numerous experiments were conducted with various high-pressure cells equipped with instrumentation to study rapid and continuous hydrate formation. The cells ranged in size from 100 mL for screening studies to proof-of-concept studies with NETL’s 15-Liter Hydrate Cell. The results from this work demonstrate that the rapid and continuousmore » formation of methane hydrate is possible at predetermined temperatures and pressures within the stability zone of a Methane Hydrate Stability Curve.« less

  13. Subphrenic and Pleural Abscess Due to Spilled Gallstones

    PubMed Central

    Varker, Kimberly A.; Zaydfudim, Victor; McKee, Jason

    2006-01-01

    Background: A 70-year-old male approximately 3 years after laparoscopic cholecystectomy presented to his primary care physician with a 4-month history of generalized malaise. Methods: A workup included magnetic resonance imaging that revealed a perihepatic abscess. The patient underwent ultrasound-guided drainage, with the removal of 1400 mL of purulent fluid and placement of 2 drains. Computed tomographic scanning showed resolution, and he was discharged home on oral antibiotics. At 2-month follow-up, the patient was asymptomatic, denying any constitutional symptoms. However, abdominal computed tomographic scanning revealed recurrence of the abscess, which measured approximately 18x9x7.5 cm, with mass effect on the liver. The patient was placed on intravenous antibiotics and scheduled for operative drainage. The abdomen was entered with a right subcostal incision, and 900 mL of purulent fluid was drained. We also noted abscess erosion through the inferolateral aspect of the right diaphragm into the pleural space. The pleural abscess was loculated and isolated from the lung parenchyma. Palpation within the abscess cavity revealed 9 large gallstones. Following copious irrigation and debridement of necrotic tissue, 3 drains were placed and the incision was closed. Results: The patient had an uneventful recovery and was discharged home on postoperative day number 6. Follow-up imaging at 3 months demonstrated resolution of the collection. Conclusion: Spillage of gallstones is a complication of laparoscopic cholecystectomy, occurring in 6% to 16% of all cases. Retained stones rarely result in a problem, but when complications arise, aggressive surgical intervention is usually necessary. PMID:16709371

  14. STAR FORMATION LAWS: THE EFFECTS OF GAS CLOUD SAMPLING

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Calzetti, D.; Liu, G.; Koda, J., E-mail: calzetti@astro.umass.edu

    Recent observational results indicate that the functional shape of the spatially resolved star formation-molecular gas density relation depends on the spatial scale considered. These results may indicate a fundamental role of sampling effects on scales that are typically only a few times larger than those of the largest molecular clouds. To investigate the impact of this effect, we construct simple models for the distribution of molecular clouds in a typical star-forming spiral galaxy and, assuming a power-law relation between star formation rate (SFR) and cloud mass, explore a range of input parameters. We confirm that the slope and the scattermore » of the simulated SFR-molecular gas surface density relation depend on the size of the sub-galactic region considered, due to stochastic sampling of the molecular cloud mass function, and the effect is larger for steeper relations between SFR and molecular gas. There is a general trend for all slope values to tend to {approx}unity for region sizes larger than 1-2 kpc, irrespective of the input SFR-cloud relation. The region size of 1-2 kpc corresponds to the area where the cloud mass function becomes fully sampled. We quantify the effects of selection biases in data tracing the SFR, either as thresholds (i.e., clouds smaller than a given mass value do not form stars) or as backgrounds (e.g., diffuse emission unrelated to current star formation is counted toward the SFR). Apparently discordant observational results are brought into agreement via this simple model, and the comparison of our simulations with data for a few galaxies supports a steep (>1) power-law index between SFR and molecular gas.« less

  15. [Two Cases of Laparoscopic Resection of Colon Cancer Manifested by Liver Abscess].

    PubMed

    Ohashi, Motonari; Iwama, Masahiro; Ikenaga, Shojirokazunori; Yokoyama, Makoto

    2017-11-01

    We report 2 cases of laparoscopic surgery for patients who had liver abscess as the initial manifestation of underlying colon cancer. The first case was in an 80-year-old woman who presented to our hospital with a diagnosis ofliver abscess. Percutaneous transhepatic abscess drainage(PTAD)was performed as initial treatment. Subsequent colonoscopy revealed a type 1 tumor in the cecum, and biopsy results ofthe mass indicated adenocarcinoma. The patient underwent laparoscopic right hemicolectomy as curative treatment. The pathological findings were as follows: tub1, T2, N0, M0 and Stage I . Two years later, she remains disease free. The second case was in a 59-year-old man with liver abscess. Colonoscopy also revealed a type 2 tumor in the sigmoid colon. After treatment of the liver abscess with PTAD, laparoscopic sigmoidectomy was performed with a preoperative diagnosis of sigmoid colon cancer. The pathological findings were as follows: tub2, T3, N0, M0 and Stage II . Lung metastases appeared 10 months after surgery, and systemic chemotherapy was administered. In conclusion, liver abscess is occasionally caused by malignancy, and complete gastrointestinal evaluation should be conducted. Laparoscopic radical surgery can be safely performed in cases in which the liver abscesses are controlled.

  16. Idiopathic granulomatous mastitis: a case report of breast abscess

    PubMed Central

    Olsen, Molly L; Dilaveri, Christina A

    2011-01-01

    Idiopathic granulomatous mastitis (IGM) is an uncommon breast disease often mistaken for breast infection or abscess. We present a case of IGM diagnosed after prolonged ineffective treatment of presumed infectious mastitis with abscess. Once the diagnosis was made with biopsy and further evaluation to exclude other causes of granulomatous disease, sinus tract debridement and closure by secondary intent resulted in resolution of symptoms in our patient. Many cases of IGM require immunosuppression with steroids, methotrexate or extensive surgery. To prevent morbidity, IGM should be considered in the differential diagnosis when presumed infectious mastitis with breast abscess does not respond to usual treatment. PMID:22687677

  17. Converting emergency pilonidal abscess into an elective procedure.

    PubMed

    Hussain, Zeiad I; Aghahoseini, Assad; Alexander, David

    2012-06-01

    Improvements in outcome after surgery for elective pilonidal sinus disease have yet to be matched for those presenting with acute disease. Traditional approaches to the management of acute pilonidal abscess have been associated with slow healing and significant loss of working time. The aim of this study was to report our approach in which a temporizing intervention allows subsequent definitive treatment with low morbidity. This article presents a prospective cohort study. This study was performed in acute admissions to the Surgical Unit in York Teaching Hospital. Patients presenting with acute pilonidal abscess, not septic, immune-compromised, or diabetic, and without skin necrosis, underwent aspiration on the surgical ward. Aspiration of pilonidal abscess under local anesthetic was performed with the use of a wide-bore needle. The abscess cavity was drained to dryness, samples were sent to the laboratory for microbiology, and empirical oral antibiotics were commenced, covering anaerobes and aerobes. Review was arranged for within 7 days to plan elective excision and primary closure of the underlying pilonidal sinus. The primary outcomes measured were the number of days required to return to normal activities, response to treatment, and any residual inflammation. Fifty-six patients were referred with acute pilonidal abscess. Forty patients met the criteria for aspiration and empirical antibiotic treatment. All were allowed to go home the same day and were reviewed within a median of 5 days. Thirty-eight (38/40) patients demonstrated complete resolution of acute inflammation and were back to normal activities the following day. Fifteen patients subsequently underwent day-case excision and primary closure at a median of 9 weeks. Another 13 are awaiting surgery, and 10 patients have declined further treatment. Two (2/40) patients did not respond, one of whom did not receive the appropriate antibiotics. Both were managed with incision and drainage. Aspiration and

  18. Tuberculosis of the middle ear with post auricular abscess.

    PubMed

    Arya, Manoj; Dixit, Ramakant; Paramez, A R; Sharma, Sidharth; Rathore, Dilip Singh

    2009-07-01

    A case of tuberculous otitis media with post auricular abscess is being described in a 14-year-old female patient in view of its rare occurrence. The diagnosis was made on demonstration of acid fast bacilli (AFB) in the ear discharge and characteristic cytological features of post auricular abscess aspirate.

  19. Tularaemia presenting as parapharyngeal abscess: case presentation.

    PubMed

    Koc, S; Gürbüzler, L; Yaman, H; Eyibilen, A; Salman, N; Ekici, A

    2012-05-01

    We report an extremely rare case of the oropharyngeal form of tularaemia, causing a parapharyngeal abscess. A 48-year-old woman presented with fever, sore throat, breathing difficulty and a right-sided neck swelling. This mass had previously been treated with penicillin without response, and had already been surgically drained once in another hospital. On physical examination, the tonsils were exudative and hypertrophic and the pharynx was hyperaemic. A fluctuant, 4 × 4 cm mass was seen on endoscopic examination, originating from the left parapharyngeal area and protruding towards the pyriform sinus, and partly obstructing the airway. Microagglutination test antibody titres for Francisella tularensis were positive (1/1280). The patient healed completely after definitive drainage of the abscess and antimicrobial therapy for 14 days (streptomycin, 2 × 1 g intramuscularly). Tularaemia should be considered in the differential diagnosis of patients presenting with tonsillopharyngitis, cervical lymphadenitis and parapharyngeal abscess who do not respond to treatment with penicillin, even if they do not live in an endemic region.

  20. Dense Gas, Dynamical Equilibrium Pressure, and Star Formation in Nearby Star-forming Galaxies

    NASA Astrophysics Data System (ADS)

    Gallagher, Molly J.; Leroy, Adam K.; Bigiel, Frank; Cormier, Diane; Jiménez-Donaire, María J.; Ostriker, Eve; Usero, Antonio; Bolatto, Alberto D.; García-Burillo, Santiago; Hughes, Annie; Kepley, Amanda A.; Krumholz, Mark; Meidt, Sharon E.; Meier, David S.; Murphy, Eric J.; Pety, Jérôme; Rosolowsky, Erik; Schinnerer, Eva; Schruba, Andreas; Walter, Fabian

    2018-05-01

    We use new ALMA observations to investigate the connection between dense gas fraction, star formation rate (SFR), and local environment across the inner region of four local galaxies showing a wide range of molecular gas depletion times. We map HCN (1–0), HCO+ (1–0), CS (2–1), 13CO (1–0), and C18O (1–0) across the inner few kiloparsecs of each target. We combine these data with short-spacing information from the IRAM large program EMPIRE, archival CO maps, tracers of stellar structure and recent star formation, and recent HCN surveys by Bigiel et al. and Usero et al. We test the degree to which changes in the dense gas fraction drive changes in the SFR. {I}HCN}/{I}CO} (tracing the dense gas fraction) correlates strongly with I CO (tracing molecular gas surface density), stellar surface density, and dynamical equilibrium pressure, P DE. Therefore, {I}HCN}/{I}CO} becomes very low and HCN becomes very faint at large galactocentric radii, where ratios as low as {I}HCN}/{I}CO}∼ 0.01 become common. The apparent ability of dense gas to form stars, {{{Σ }}}SFR}/{{{Σ }}}dense} (where Σdense is traced by the HCN intensity and the star formation rate is traced by a combination of Hα and 24 μm emission), also depends on environment. {{{Σ }}}SFR}/{{{Σ }}}dense} decreases in regions of high gas surface density, high stellar surface density, and high P DE. Statistically, these correlations between environment and both {{{Σ }}}SFR}/{{{Σ }}}dense} and {I}HCN}/{I}CO} are stronger than that between apparent dense gas fraction ({I}HCN}/{I}CO}) and the apparent molecular gas star formation efficiency {{{Σ }}}SFR}/{{{Σ }}}mol}. We show that these results are not specific to HCN.

  1. [Pulmonary nocardiasis with abscesses spreading to cerebrum, cerebellum and orbits].

    PubMed

    Borchers, M; von der Mülbe, B; Teikemeier, F; Theegarten, D

    2006-05-12

    A 71-year-old woman presented with suspected tuberculosis. She reported having productive coughs, unwanted weight loss and subfebrile temperature in the preceding 3 months. She was known to have chronic obstructive pulmonary disease treated with corticoids given systemically and by inhalation. She was a heavy smoker. Computed tomography revealed a left apical lung abscess. In the further course of the disease magnetic resonance imaging of the head demonstrated multiple abscesses in both cerebral hemispheres and an abscess, 3.4 cm in diameter, in the right side of the cerebellum, as well as a intra-orbital tumor on the right. Needle aspirate of the eyeball grew Nocardia farcinica. Over 3 weeks antimicrobial treatment was given with imipenem and amikacin, followed by oral cotrimoxazole for 12 months. The abscesses completely regressed and after 12 months no recurrence was demonstrated either radiologically or clinically. Although nocardiasis is rare in Germany it must be included in the differential diagnosis of pneumonia with abscesses. This is especially so if acid-fast bacilli are found. As the resistance pattern of N. farcinica to antibiotics varies, early treatment is essential with antibiotics to which it is sensitive.

  2. Outcome of medical management of intraabdominal abscesses in children with Crohn disease.

    PubMed

    Alkhouri, Razan H; Bahia, Gracielle; Smith, Ashley C; Thomas, Richard; Finck, Christine; Sayej, Wael

    2017-09-01

    Crohn disease (CD) is a chronic inflammatory condition of the gastrointestinal tract that is complicated by fistulas, strictures, and intraabdominal abscesses (IAA) in 10%-30% of patients. To avoid surgical resection of the bowel, medical therapy with antibiotics (Ab) with or without percutaneous drainage (PD) is first undertaken. Our objectives are to examine the outcome of IAA in CD patients treated with antibiotics alone vs antibiotics and PD, and to identify risk factors for medical therapy failure. Charts for patient with CD who were diagnosed between 2004 and 2016 at the Women and Children's Hospital of Buffalo were retrospectively reviewed. We compared the two modalities of medical therapy (Ab + PD vs Ab alone) in terms of abscess resolution and the need for surgical intervention. Twenty-nine patients, ages ranging from 12 to 18years, mean 15.5±2.5, 48% Male with IAA were identified. Overall, 69% of abscesses failed medical therapy including 87% of the drained abscesses and 50% of nondrained abscesses, p=0.04. The abscesses that failed medical therapy were more likely to have been drained (P=0.03) as they were larger in size (P = 0.03), patients were more likely to have a known CD on immunosuppression (P=0.016), and more likely to have an associated upper GI disease (P=0.002), when compared to those that were successful with medical therapy alone. Our results show that the majority of our patients required surgical intervention for abscess treatment and resolution of associated findings despite drainage. Risk factors include big drainable abscesses, developing IAA while on immunosuppression, and a more extensive disease with associated fistulae and strictures. Small undrainable abscesses are likely to resolve with antibiotics alone, therefore early detection and treatment are essential. Level 2, retrospective study. Published by Elsevier Inc.

  3. Intractable lung abscess successfully treated with cavernostomy and free omental plombage using microvascular surgery.

    PubMed

    Shimizu, Junzo; Arano, Yoshihiko; Adachi, Iwao; Ikeda, Chikako; Ishikawa, Norihiko; Ohtake, Hiroshi

    2009-11-01

    A 68-year-old man, complaining of fever and puriform sputum, was referred to our hospital. A giant abscess was detected in the upper lobe of the right lung. Percutaneous drainage of a lung abscess was carried out. When the pus collected was cultured, Candida was 1+ and Escherichia coli was 2+. Later, it became difficult to control the abscess by drainage, and cavernostomy was selected. The contents of the abscess cavity were removed, and the cavity was opened, followed by exchange of gauze every day. For 14 months after cavernostomy, once-weekly gauze exchange was continued at the outpatient clinic to clean the abscess cavity. Finally, the abscess was filled with a free greater omentum flap, accompanied by microvascular anastomosis. In this way, the intractable lung abscess was successfully cured. Conventionally, surgical treatment, particularly cavernostomy, has been applied only to limited cases when dealing with a lung abscess. Our experience with the present case suggests that surgical treatment, including cavernostomy as one option, should also be considered when dealing with lung abscesses resisting medical treatment and causing compromised respiratory function. To enable maximum utilization of the greater omental flap, which is available in only a limited amount, it seems useful to prepare and graft a free omental flap making use of microvascular surgery.

  4. Ultrasound Detection of Soft Tissue Abscesses Performed by Non-Physician U.S. Army Medical Providers Naïve to Diagnostic Sonography.

    PubMed

    LaDuke, Mike; Monti, Jon; Cronin, Aaron; Gillum, Bart

    2017-03-01

    Patients commonly present to emergency rooms and primary care clinics with cellulitic skin infections with or without abscess formation. In military operational units, non-physician medical personnel provide most primary and initial emergency medical care. The objective of this study was to determine if, after minimal training, Army physician assistants and medics could use portable ultrasound (US) machines to detect superficial soft tissue abscesses. This was a single-blinded, randomized, prospective observational study conducted over the course of 2 days at a military installation. Active duty military physician assistants and medics with little or no US experience were recruited as participants. They received a short block of training on abscess detection using both clinical examination skills (inspection/palpation) and US examination. The participants were then asked to provide a yes/no answer regarding abscess presence in a chicken tissue model. Results were analyzed to assess the participants' abilities to detect abscesses, compare the diagnostic accuracy of their clinical examinations with their US examinations, and assess how often US results changed treatment plans initially on the basis of clinical examination findings alone. 22 participants performed a total of 220 clinical examinations and 220 US scans on 10 chicken tissue abscess models. Clinical examination for abscess detection yielded a sensitivity of 73.5% (95% confidence interval [CI], 65.3-80.3%) and a specificity of 77.2% (95% CI, 67.4-84.9%), although US examination for abscess detection yielded a sensitivity of 99.2% (95% CI, 95.4-99.9%) and a specificity of 95.5% (95% CI, 88.5-98.6%). Clinical examination yielded a diagnostic accuracy of 75.0% (95% CI, 68.9-80.3) although US examination yielded a diagnostic accuracy of 97.7% (95% CI, 94.6-99.2%), a difference in accuracy of 22.7% favoring US (p < 0.01). US changed the diagnosis in 56 of 220 cases (25.4% of all cases, p = 0.02). Of these 56

  5. Detection of occult abscesses with /sup 111/In-labeled leukocytes

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Martin, W.R.; Gurevich, N.; Goris, M.L.

    1979-07-01

    Clinicians are frequently faced with the problem of a patient in whom they suspect an occult abscess. In such a situation, there may be no clinical signs to localize the site of the abscess and often extensive investigations do not provide additional useful information. This report illustrates the efficacy of autologous leukocytes labeled with /sup 111/In oxine in detecting the site and extent of occult abscesses in two patients. The technique of in vitro lebeling of leukocytes is simple and has been mastered by all of our nuclear medicine technologists.

  6. Pelvic abscess associated with a Lippes loop. An unusual case.

    PubMed

    Hochner-Celnikier, D; Milwidsky, A; Menashe, M; Ariel, I; Palti, Z

    1983-08-01

    An unusual case occurred of Lippes-Loop-associated pelvic abscess, characterized by a relatively mild clinical course and an unusual localization in the pelvis. This case emphasizes the importance of considering the association between intrauterine devices and pelvic abscess.

  7. A fundamental study of gas formation and migration during leakage of stored carbon dioxide in subsurface formations

    NASA Astrophysics Data System (ADS)

    Sakaki, T.; Plampin, M. R.; Lassen, R. N.; Pawar, R. J.; Komatsu, M.; Jensen, K. H.; Illangasekare, T. H.

    2011-12-01

    Geologic sequestration of CO2 has received significant attention as a potential method for reducing the release of greenhouse gases into the atmosphere. Potential risk of leakage of the stored CO2 to the shallow zones of the subsurface is one of the critical issues that is needed to be addressed to design effective field storage systems. If a leak occurs, gaseous CO2 reaching shallow zones of the subsurface can potentially impact the surface and groundwater sources and vegetation. With a goal of developing models that can predict these impacts, a research study is underway to improve our understanding of the fundamental processes of gas-phase formation and multi-phase flow dynamics during CO2 migration in shallow porous media. The approach involves conducting a series of highly controlled experiments in soil columns and tanks to study the effects of soil properties, temperature, pressure gradients and heterogeneities on gas formation and migration. This paper presents the results from a set of column studies. A 3.6m long column was instrumented with 16 soil moisture sensors, 15 of which were capable of measuring electrical conductivity (EC) and temperature, eight water pressure, and two gas pressure sensors. The column was filled with test sands with known hydraulic and retention characteristics with predetermined packing configurations. Deionized water saturated with CO2 under ~0.3 kPa (roughly the same as the hydrostatic pressure at the bottom of the column) was injected at the bottom of the column using a peristaltic pump. Water and gas outflow at the top of the column were monitored continuously. The results, in general, showed that 1) gas phase formation can be triggered by multiple factors such as water pressure drop, temperature rise, and heterogeneity, 2) transition to gas phase tends to occur rather within a short period of time, 3) gas phase fraction was as high as ~40% so that gas flow was not via individual bubble movement but two-phase flow, 4) water

  8. Gas hydrate formation rates from dissolved-phase methane in porous laboratory specimens

    USGS Publications Warehouse

    Waite, William F.; Spangenberg, E.K.

    2013-01-01

    Marine sands highly saturated with gas hydrates are potential energy resources, likely forming from methane dissolved in pore water. Laboratory fabrication of gas hydrate-bearing sands formed from dissolved-phase methane usually requires 1–2 months to attain the high hydrate saturations characteristic of naturally occurring energy resource targets. A series of gas hydrate formation tests, in which methane-supersaturated water circulates through 100, 240, and 200,000 cm3 vessels containing glass beads or unconsolidated sand, show that the rate-limiting step is dissolving gaseous-phase methane into the circulating water to form methane-supersaturated fluid. This implies that laboratory and natural hydrate formation rates are primarily limited by methane availability. Developing effective techniques for dissolving gaseous methane into water will increase formation rates above our observed (1 ± 0.5) × 10−7 mol of methane consumed for hydrate formation per minute per cubic centimeter of pore space, which corresponds to a hydrate saturation increase of 2 ± 1% per day, regardless of specimen size.

  9. Supersonic gas streams enhance the formation of massive black holes in the early universe.

    PubMed

    Hirano, Shingo; Hosokawa, Takashi; Yoshida, Naoki; Kuiper, Rolf

    2017-09-29

    The origin of super-massive black holes in the early universe remains poorly understood. Gravitational collapse of a massive primordial gas cloud is a promising initial process, but theoretical studies have difficulty growing the black hole fast enough. We report numerical simulations of early black hole formation starting from realistic cosmological conditions. Supersonic gas motions left over from the Big Bang prevent early gas cloud formation until rapid gas condensation is triggered in a protogalactic halo. A protostar is formed in the dense, turbulent gas cloud, and it grows by sporadic mass accretion until it acquires 34,000 solar masses. The massive star ends its life with a catastrophic collapse to leave a black hole-a promising seed for the formation of a monstrous black hole. Copyright © 2017 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.

  10. Gas formation and biological effects of biodegradable magnesium in a preclinical and clinical observation

    PubMed Central

    Lee, Kwang-Bok; Bode, Ken; Kwon, Tae-Young; Jeon, Moo Heon

    2018-01-01

    Abstract Magnesium alloys are biodegradable metals receiving increasing attention, but the clinical applications of these materials are delayed by concerns over the rapid corrosion rate and gas formation. Unlike corrosion, which weakens mechanical properties, the gas formation issue has received little attention. Therefore, we evaluated the gas formation and biological effects for Mg implants through preclinical (immersed in Earle’s balanced salt solution and in vivo) and clinical studies. The immersion test examined the gas volume and composition. The in vivo study also examined gas volume and histological analysis. The clinical study examined the gas volume and safety after Mg screw metatarsal fixation. Gas was mainly composed of H2, CO and CO2. Maximum volumes of gas formed after 5 days for in vivo and 7 days in clinical study. Within the clinical examination, two superficial wound complications healed with local wound care. Osteolytic lesions in the surrounding metaphysis of the Mg screw insertion developed in all cases and union occurred at 3 months. Mg implants released gas with variable volumes and composition (H2, CO, and CO2), with no long-term toxic effects on the surrounding tissue. The implants enabled bone healing, although complications of wound breakdown and osteolytic lesions developed. PMID:29707071

  11. Direct formation of supermassive black holes via multi-scale gas inflows in galaxy mergers.

    PubMed

    Mayer, L; Kazantzidis, S; Escala, A; Callegari, S

    2010-08-26

    Observations of distant quasars indicate that supermassive black holes of billions of solar masses already existed less than a billion years after the Big Bang. Models in which the 'seeds' of such black holes form by the collapse of primordial metal-free stars cannot explain the rapid appearance of these supermassive black holes because gas accretion is not sufficiently efficient. Alternatively, these black holes may form by direct collapse of gas within isolated protogalaxies, but current models require idealized conditions, such as metal-free gas, to prevent cooling and star formation from consuming the gas reservoir. Here we report simulations showing that mergers between massive protogalaxies naturally produce the conditions for direct collapse into a supermassive black hole with no need to suppress cooling and star formation. Merger-driven gas inflows give rise to an unstable, massive nuclear gas disk of a few billion solar masses, which funnels more than 10(8) solar masses of gas to a sub-parsec-scale gas cloud in only 100,000 years. The cloud undergoes gravitational collapse, which eventually leads to the formation of a massive black hole. The black hole can subsequently grow to a billion solar masses on timescales of about 10(8) years by accreting gas from the surrounding disk.

  12. Penile Abscess Secondary to Neglected Penile Fracture after Intracavernosal Vasoactive Drug Injection

    PubMed Central

    Song, Wan; Ko, Kwang Jin; Shin, Seung Jea

    2012-01-01

    Penile abscesses are rare, but can develop after trauma, injection therapy, or surgery of the penis, or as an unusual presentation of sexually transmitted diseases. We report a case of penile abscess in a 51-year-old diabetic man, presented 9 days after neglected penile fracture following intracavernosal injection therapy and sexual intercourse. Penile ultrasonography and surgical exploration confirmed the physical examination findings of involvement of the corpus cavernosum. The pus culture from the abscess revealed Enterococcous faecalis. The patient was successfully treated by surgical drainage of the abscess and primary closure of the ruptured tunica albuginea. PMID:23596611

  13. Penile abscess secondary to neglected penile fracture after intracavernosal vasoactive drug injection.

    PubMed

    Song, Wan; Ko, Kwang Jin; Shin, Seung Jea; Ryu, Dong Soo

    2012-12-01

    Penile abscesses are rare, but can develop after trauma, injection therapy, or surgery of the penis, or as an unusual presentation of sexually transmitted diseases. We report a case of penile abscess in a 51-year-old diabetic man, presented 9 days after neglected penile fracture following intracavernosal injection therapy and sexual intercourse. Penile ultrasonography and surgical exploration confirmed the physical examination findings of involvement of the corpus cavernosum. The pus culture from the abscess revealed Enterococcous faecalis. The patient was successfully treated by surgical drainage of the abscess and primary closure of the ruptured tunica albuginea.

  14. Retroperitoneal abscesses in seven dogs.

    PubMed

    Marvel, Sarah J; MacPhail, Catriona M

    2013-01-01

    Retroperitoneal abscesses, although uncommon, are clinically important. Medical records of seven dogs with naturally occurring retroperitoneal infections from 1999 to 2011 were reviewed to document historical, examination, clinicopathologic, imaging, and surgical findings; etiologic agents; and outcome. Middle-aged sporting dogs were most commonly affected. Dogs were febrile with evidence of either abdominal or lumbar pain. Although traditional radiography can aid in diagnosis, ultrasound appeared to be a more sensitive indicator of disease within the retroperitoneal space. Numerous bacteria were isolated from the abscesses, with anaerobic and facultative anaerobic bacteria being the most commonly isolated. Etiology was largely unknown, but migrating plant material was often suspected. Resolution of the infection required surgical intervention as well as prolonged antibiotic therapy. Although recurrence is possible, outcome can be favorable with no long-term sequela.

  15. Potential for deep basin-centered gas accumulation in Travis Peak (Hosston) Formation, Gulf Coastal Basin

    USGS Publications Warehouse

    Bartberger, Charles E.; Dyman, Thaddeus S.; Condon, Steven M.

    2003-01-01

    The potential of Lower Cretaceous sandstones of the Travis Peak Formation in the northern Gulf Coast Basin to harbor a basin-centered gas accumulation was evaluated by examining (1) the depositional and diagenetic history and reservoir properties of Travis Peak sandstones, (2) the presence and quality of source rocks for generating gas, (3) the burial and thermal history of source rocks and time of gas generation and migration relative to tectonic development of Travis Peak traps, (4) gas and water recoveries from drill-stem and formation tests, (5) the distribution of abnormal pressures based on shut-in-pressure data, and (6) the presence or absence of gas-water contacts associated with gas accumulations in Travis Peak sandstones. The Travis Peak Formation (and correlative Hosston Formation) is a basinward-thickening wedge of terrigenous clastic sedimentary rocks that underlies the northern Gulf Coast Basin from eastern Texas across northern Louisiana to southern Mississippi. Clastic infl ux was focused in two main fl uvial-deltaic depocenters?one located in northeastern Texas and the other in southeastern Mississippi and northeastern Louisiana. Across the main hydrocarbon-productive trend in eastern Texas and northern Louisiana, the Travis Peak Formation is about 2,000 ft thick. Most Travis Peak hydrocarbon production in eastern Texas comes from drilling depths between 6,000 and 10,000 ft. Signifi cant decrease in porosity and permeability occurs through that depth interval. Above 8,000-ft drilling depth in eastern Texas, Travis Peak sandstone matrix permeabilities often are signifi cantly higher than the 0.1-millidarcy (mD) cutoff that characterizes tight-gas reservoirs. Below 8,000 ft, matrix permeability of Travis Peak sandstones is low because of pervasive quartz cementation, but abundant natural fractures impart signifi cant fracture permeability. Although pressure data within the middle and lower Travis Peak Formation are limited in eastern Texas

  16. Brain abscess due to Aggregatibacter aphrophilus and Bacteroides uniformis.

    PubMed

    Bogdan, Maja; Zujić Atalić, Vlasta; Hećimović, Ivan; Vuković, Dubravka

    2015-01-01

    The aim of this report was to describe the occurrence of a bacterial brain abscess in a healthy individual, without any predisposing condition. A thirteen-year old boy was admitted to the Department of Neurosurgery after the onset of vomiting, headache and dizziness. A neurological deficit was detected during the physical examination so urgent magnetic resonance imaging of the brain was performed, revealing an intrahemispheric, right positioned solitary expansive mass with ring enhancement. Purulent material was obtained during osteoplastic craniotomy with total extirpation of the brain abscess. Aggregatibacter aphrophilus and Bacteroides uniformis were isolated. The patient's general condition improved and the neurological deficit subsided as a result of the prompt recognition and treatment of this life threatening condition. To achieve a favourable clinical outcome, prompt recognition and surgical treatment of a brain abscess are of primary importance,followed by administration of appropriate antimicrobial therapy. To our best knowledge, this is the first report of this combination of microorganisms as the cause of a brain abscess. Copyright © 2015 by Academy of Sciences and Arts of Bosnia and Herzegovina.

  17. Streptococcus intermedius: an unusual cause of spinal epidural abscess

    PubMed Central

    Ramhmdani, Seba

    2017-01-01

    Spinal epidural abscess (SEA) following dental procedures is a rarely reported entity. Here, we present a unique case of a 74-year-old immunocompetent man who developed severe lower back pain and bilateral lower extremity weakness 4 days following two root canal procedures. Lumbar spine magnetic resonance imaging (MRI) showed several pockets of epidural abscesses extending from L1 through L5. Blood cultures grew Streptococcus intermedius, an anaerobic commensal bacterium of the normal flora of the mouth and upper airways. The patient was treated with IV penicillin for 7 days but his symptoms continued to deteriorate. A repeat MRI showed extension of the epidural abscess to T10–T11 level. The patient was emergently transferred to our hospital where he underwent bilateral decompressive laminectomy of T10 through S1 and abscess evacuation. Pus culture was positive for Streptococcus intermedius, which confirmed the diagnosis and the treatment plan. He was discharged on intravenous (IV) penicillin for 6 weeks. His symptoms improved significantly postoperatively as he retained his baseline strength in his lower extremity. PMID:28744508

  18. Acute appendiceal abscess and atraumatic splenic rupture: A case of dual pathology.

    PubMed

    Ananthavarathan, Piriyankan; Patel, Kamlesh; Doran, Catherine; Suggett, Nigel

    2016-01-01

    Atraumatic splenic rupture is a rare surgical emergency that is often attributed to neoplastic or infectious causes. Rarely, it has been identified to also occur in the setting of an acute severe sepsis and in cases of pelvic or splenic abscess formation post-appendicectomy. However, to our knowledge, the co-presentation of acute appendiceal abscess and splenic rupture has not been previously described. We present the case of a 67-year old male with decompensating haemorrhagic shock secondary to atraumatic splenic rupture on a background of an inadequately treated complicated appendicitis originally managed as diverticulitis with antibiotics in the community. Intra-operatively, in addition to a de-gloved, ruptured spleen; an acutely inflamed appendiceal abscess was also identified. A concomitant splenectomy, washout and appendicectomy and was therefore performed. Histopathological examination revealed a normal spleen with a stripped capsular layer. Mucosal ulceration, transmural inflammation and serositis of the appendix appeared to be consistent with acute appendicitis. Our case demonstrates how inadequately treated sepsis may predispose to an acute presentation of splenic rupture with associated haemorrhagic shock; which may initially be interpreted as septic shock. However, we demonstrate how insults such as sepsis and haemorrhagic shock may co-exist warranting careful consideration of possible dual pathologies in complex presentations which may be life-threatening. While the causal relationship between acute appendicitis and atraumatic spontaneous splenic rupture remains unclear, our case considers and highlights the importance of considering dual pathology in patients presenting in the acute setting. Copyright © 2016. Published by Elsevier Ltd.

  19. Tubercular thyroid abscess

    PubMed Central

    Kumar, Awanish; Pahwa, Harvinder Singh; Srivastava, Rohit; Khan, Khursheed Alam

    2013-01-01

    We encountered a patient who presented with neck swelling, difficulty in swallowing, voice change along with systemic features such as evening rise of temperature, chronic cough and weight loss. Ultrasonography of the thyroid gland revealed two cystic swellings. An ultrasound guided fine needle aspiration cytology was suggestive of tubercular abscess. The patient responded well to antigravity aspiration of the swellings and antitubercular treatment. PMID:23814203

  20. Retropharyngeal abscess complicated with torticollis: case report and review of the literature.

    PubMed

    Hasegawa, Jun; Tateda, Masaru; Hidaka, Hiroshi; Sagai, Shun; Nakanome, Ayako; Katagiri, Katsunori; Seki, Masahiro; Katori, Yukio; Kobayashi, Toshimitsu

    2007-09-01

    Retropharyngeal abscess commonly develops among infants and small children, and is associated with the severe inflammation of the retropharyngeal lymph nodes located in the retropharyngeal space. Retropharyngeal abscess causes cervical pain, swelling, contracture of the neck, and in rare cases inflammatory torticollis, all of which result from an inflammatory process that irritates the cervical muscles, nerves or vertebrae. Here we report a rare case of retropharyngeal abscess with a complication of torticollis. A 4-year-old girl suffered from severe retropharyngeal abscess spreading through the deep cervical fascia, as judged by magnetic resonance imaging of the neck. Blood analysis showed high degree of inflammatory reactions, and so the patient was transferred to our hospital ward. The inflammation caused spasms of the prevertebral muscles, eventually leading to torticollis. The surgical drainage was performed immediately under general anesthesia, and an anti-inflammation therapy with intravenously administered meropenem trihydrate and clindamycin was used together with traction therapy to relieve the symptoms of the patient. We must be careful about the existence of epidural abscess and infectious spondylitis when the retropharyngeal abscess causes torticollis. In conclusion, an anti-inflammation therapy using antibiotics, along with traction therapy, was effective to relieve the symptoms. In addition to repeated clinical examinations, cooperation with orthopedists and careful follow-up are necessary. We also discussed the relationship between acute torticollis and retropharyngeal abscess.

  1. CT guided transthoracic catheter drainage of intrapulmonary abscess.

    PubMed

    Yunus, Mahira

    2009-10-01

    To determine the efficacy of CT- guided transthoracic catheter drainage of intrapulmonary abscess considering success rate versus complications. This prospective study was carried out at radiology department of Al-Noor Specialist Hospital, Makkah, Saudi Arabia, from 1.1.2003 to 31.12.2005. Nineteen patients were selected for CT guided percutaneous drainage. Under CT guidance catheter placement was carried out using Seldinger technique. Nineteen patients with lung abscess were selected for the percutaneous CT guided drainage. Eight (42.105%) patients encountered no complications and lung abscess completely resolved with no residual cavity. Five (26.31%) patients developed pneumothorax, which was the most common complication of this study. These patients were kept under observation and followed-up by chest X-rays. Three (15.78%) had mild pneumothorax, which resolved and needed no further management, while two (10.52%) patients developed moderate pneumothorax and chest tube was inserted. Two (10.52%) patients developed mild haemoptysis which resolved within two hours, hence, no further management was required. Two (10.52%) patients had residual cavity and surgery was performed. Congenital cystic adenomatoid malformation (CCAM) was found in both cases. Two patients out of nineteen patients (10.52%) developed bronchopleural fistula and were operated. No mortality occurred during or after the procedure. CT allows optimal placement of catheter and hence enables safe and effective percutaneous evacuation of lung abscess. The morbidity and mortality of patients with percutaneous catheter drainage is lower than with surgical resection. Hence, CT guided drainage should be considered the first therapeutic choice in most patients of lung abscess who do not respond to medical therapy.

  2. Gravitational star formation thresholds and gas density in three galaxies

    NASA Technical Reports Server (NTRS)

    Oey, M. S.; Kennicutt, R. C., Jr.

    1990-01-01

    It has long been held that the star formation rate (SFR) may be described as a power law of the gas density, p(exp n), as given by Schmidt (1959). However, this relation has as yet remained poorly defined and is likewise poorly understood. In particular, most studies have been investigations of global gas and star formation properties of galaxies, due to lack of adequate high-resolution data for detailed studies of individual galaxies. The three spiral galaxies in this study have published maps of both H2 (as traced by CO), and HI, thereby enabling the authors to investigate the relationship between total gas surface density and SFR. The purpose of the present investigation is the comparison of spatially-resolved total surface gas density in three galaxies (NGC 6946, M51, and M83) to sigma sub c as given by the above model. CO, HI and H alpha data for NGC 6946 were taken from Tacconi-Garman (1988), and for M51 and M83 from Lord (1987). The authors used a CO-H2 conversion of N(H2)/I sub CO(exp cos i = 2.8 x 10(exp 20) atoms cm(-2)/(K kms(-1), and summed the H2 and HI data for each galaxy to obtain the total hydrogen gas density. This total was then multiplied by a factor of 1.36 to include the contribution of helium to the total surface gas density. The authors assumed distances to NGC 6946, M51, and M83 to be 6.0, 9.6, and 8.9 Mpc respectively, with inclination angles of 30, 20, and 26 degrees. H alpha flux was used as the measure of SFR for NGC 6946, and SFR for the remaining two galaxies was taken directly from Lord as computed from H alpha measurements. The results of these full-disk studies thus show a remarkable correlation between the total gas density and the threshold densities given by the gravitational stability criterion. In particular, the threshold density appears to mark a lower boundary to the range of gas densities in these galaxies, which may have consequence in determining appropriate models for star formation and gas dynamics. More evidence is

  3. Myopericarditis associated with Fusobacterium nucleatum-caused liver abscess.

    PubMed

    Kearney, Alexis; Knoll, Bettina

    2015-03-01

    A wide clinical spectrum of bacteremic disease caused by Fusobacterium has been presented in this journal. We wish to extend this spectrum by presenting a case of myopericarditis resulting from a liver abscess caused by F. nucleatum. While F. nucleatum plays an important role in periodontal disease, and has been isolated from skin ulcers, liver abscesses, urinary tract infections, and endocarditis, a single case of F. nucleatum-induced pericarditis is documented in the literature.

  4. Spinal Intramedullary Abscess Secondary to Dermal Sinus in Children.

    PubMed

    Prasad, G Lakshmi; Hegde, Ajay; Divya, S

    2018-06-01

     Congenital dermal sinuses (CDS) are uncommon lesions. They are most often noted in lumbosacral region and may lead to meningitis or spinal abscess. Intramedullary spinal cord abscess (IMSCA) due to CDS is rare and often co-exists with an inclusion tumor such as dermoid/epidermoid cyst.  Literature review was done to analyze all cases of pediatric IMSCA secondary to CDS by searching online databases starting from the oldest case reported.  Only 50 cases have been reported and were analyzed. Mean age was 22.6 months (range 1 month-15 years). Fever, acute flaccid lower limb weakness, and urinary disturbances were the most common presenting features. Dermal sinus was commonest in lumbosacral region. Inclusion cysts were observed in 50% of cases. Staphylococcus aureus was the most the common organism. Mean follow-up duration was 18.2 months (range 1 week-156 months). Majority of the cases underwent multilevel laminectomy with myelotomy and drainage of abscess. Outcome was good-to-excellent in around 60% cases with four deaths. Presence of fever and limb weakness was significantly associated with poor outcomes.  Intramedullary abscess secondary to CDS is very rare. Complete sinus tract excision, myelotomy and drainage of abscess, and decompression of co-existent inclusion cysts with prolonged antibiotic therapy remain the standard treatment. Approximately 60% cases achieve good outcomes. Fever and limb weakness portend poorer outcomes than those without. Georg Thieme Verlag KG Stuttgart · New York.

  5. Surgical and survival outcomes of lung cancer patients with intratumoral lung abscesses.

    PubMed

    Yamanashi, Keiji; Okumura, Norihito; Takahashi, Ayuko; Nakashima, Takashi; Matsuoka, Tomoaki

    2017-05-26

    Intratumoral lung abscess is a secondary lung abscess that is considered to be fatal. Therefore, surgical procedures, although high-risk, have sometimes been performed for intratumoral lung abscesses. However, no studies have examined the surgical outcomes of non-small cell lung cancer patients with intratumoral lung abscesses. The aim of this study was to investigate the surgical and survival outcomes of non-small cell lung cancer patients with intratumoral lung abscesses. Eleven consecutive non-small cell lung cancer patients with intratumoral lung abscesses, who had undergone pulmonary resection at our institution between January 2007 and December 2015, were retrospectively analysed. The post-operative prognoses were investigated and prognostic factors were evaluated. Ten of 11 patients were male and one patient was female. The median age was 64 (range, 52-80) years. Histopathologically, 4 patients had Stage IIA, 2 patients had Stage IIB, 2 patients had Stage IIIA, and 3 patients had Stage IV tumors. The median operative time was 346 min and the median amount of bleeding was 1327 mL. The post-operative morbidity and mortality rates were 63.6% and 0.0%, respectively. Recurrence of respiratory infections, including lung abscesses, was not observed in all patients. The median post-operative observation period was 16.1 (range, 1.3-114.5) months. The 5-year overall survival rate was 43.3%. No pre-operative, intra-operative, or post-operative prognostic factors were identified in the univariate analyses. Surgical procedures for advanced-stage non-small cell lung cancer patients with intratumoral lung abscesses, although high-risk, led to satisfactory post-operative mortality rates and acceptable prognoses.

  6. How Does Dense Molecular Gas Contribute to Star Formation in the Starburst Galaxy NGC 2146?

    NASA Astrophysics Data System (ADS)

    Wofford, Alia

    2017-01-01

    The starburst galaxy NGC 2146 is believed to have been formed approximately 800 Myr ago, when two galaxies collided with each other possibly leading to a burst of star formation. NGC 2146 is known as a starburst galaxy for the high frequency of star formation going on in its molecular clouds. These clouds serve as nurseries for star formation to occur. Hydrogen Cyanide (HCN) and Carbon monoxide (CO) are molecules found in molecular gas clouds. HCN molecules are tracers for high density star forming gas. Whereas, CO molecules are tracers for low density star forming gas. In this project, we are observing these two molecules and their proximity to where the stars are forming in the galaxy to determine if the star formation is occurring in the same area as the high and low density molecular gas areas in starburst galaxy NGC 2146.

  7. Diagnosis and treatment of patients with prostatic abscess in the post-antibiotic era.

    PubMed

    Ackerman, Anne Lenore; Parameshwar, Pooja S; Anger, Jennifer T

    2018-02-01

    We reviewed the pathogenesis, clinical presentation, treatment options and outcomes of prostatic abscess in the post-antibiotic era, focusing on how patient risk factors and the emergence of multidrug-resistant organisms influence management of the condition. A MEDLINE search for "prostate abscess" or "prostatic abscess" was carried out. Prostate abscess is no longer considered a consequence of untreated urinary infection; now, men with prostatic abscess are typically debilitated or immunologically compromised, with >50% of patients having diabetes. In younger men, prostatic abscess can be the initial presentation of such chronic conditions. In older men, prostatic abscess is increasingly a complication of benign prostatic hyperplasia or prostate biopsy. Diagnosis is based on a physical examination, leukocytosis, leukocyturia and transrectal ultrasound, with magnetic resonance imaging serving as the preferred confirmatory imaging modality. Treatment of prostatic abscess is changing as a result of the emergence of atypical and drug-resistant organisms, such as extended-spectrum β-lactamase-producing enterobacteriaceae and methicillin-resistant Staphylococcus aureus. As many as 75% of infections are resistant to first-generation antibiotics, necessitating aggressive therapy with broad-spectrum parenteral antibiotics, such as third-generation cephalosporins, aztreonam or antibiotic combinations. A total of 80% of patients require early surgical drainage, frequently through a transurethral approach. In the post-antibiotic era, prostatic abscess is evolving from an uncommon complication of urinary infection to a consequence of immunodeficiency, growing antibiotic resistance and urological manipulation. This condition, primarily affecting patients with chronic medical conditions rendering them susceptible to atypical, drug-resistant organisms, requires prompt aggressive intervention with contemporary antibiotic therapy and surgical drainage. © 2017 The Japanese

  8. Intracranial abscess secondary to dental infection.

    PubMed

    Brady, Paul; Bergin, Sarah; Cryan, Bartley; Flanagan, Oisin

    2014-01-01

    We report a case of Aggregatibacter actinomycetemcomitans (A. actinomycetemcomitans) bacteraemia and secondary brain abscess in a patient where periodontal disease was implicated as the probable source.

  9. An unusual autopsy case of pyogenic liver abscess caused by periodontal bacteria.

    PubMed

    Ohyama, Hideki; Nakasho, Keiji; Yamanegi, Koji; Noiri, Yuichiro; Kuhara, Ayako; Kato-Kogoe, Nahoko; Yamada, Naoko; Hata, Masaki; Nishimura, Fusanori; Ebisu, Shigeyuki; Terada, Nobuyuki

    2009-09-01

    Pyogenic liver abscess (PLA) formation is thought to originate from the transmission of infection via three major routes including the biliary tract, portal vein and hepatic artery. However, about 50% of PLA cases are considered to be cryptogenic. Here we report an unusual autopsy case of PLA associated with periodontopathic bacterial infection. A 59-year-old female suddenly developed cardiopulmonary arrest and died. Despite macroscopic and microscopic examinations, the infectious routes and source of infection were unidentified, and the case appeared to be cryptogenic. Since this patient had suffered severe periodontitis for a long period of time, we investigated the involvement of periodontal infection in PLA formation by performing immunohistochemical analyses. We identified several periodontopathic bacterial species in the PLA of this patient, including Fusobacterium nucleatum, Treponema denticola, Prevotella intermedia and Porphyromonas gingivalis. Thus, we demonstrate here that periodontal infection is a potential source of infection in the formation of PLA.

  10. Retroperitoneal abscesses in two western lowland gorillas (Gorilla gorilla gorilla).

    PubMed

    Hahn, Alicia; D'Agostino, Jennifer; Cole, Gretchen A; Raines, Jan

    2014-03-01

    This report describes two cases of retroperitoneal abscesses in female western lowland gorillas (Gorilla gorilla gorilla). Clinical symptoms included perivulvar discharge, lameness, hindlimb paresis, and general malaise. Retroperitoneal abscesses should be considered as part of a complete differential list in female gorillas with similar clinical signs.

  11. Formation of Gas-Phase Formate in Thermal Reactions of Carbon Dioxide with Diatomic Iron Hydride Anions.

    PubMed

    Jiang, Li-Xue; Zhao, Chongyang; Li, Xiao-Na; Chen, Hui; He, Sheng-Gui

    2017-04-03

    The hydrogenation of carbon dioxide involves the activation of the thermodynamically very stable molecule CO 2 and formation of a C-H bond. Herein, we report that HCO 2 - and CO can be formed in the thermal reaction of CO 2 with a diatomic metal hydride species, FeH - . The FeH - anions were produced by laser ablation, and the reaction with CO 2 was analyzed by mass spectrometry and quantum-chemical calculations. Gas-phase HCO 2 - was observed directly as a product, and its formation was predicted to proceed by facile hydride transfer. The mechanism of CO 2 hydrogenation in this gas-phase study parallels similar behavior of a condensed-phase iron catalyst. © 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

  12. Abscess of residual lobe after pulmonary resection for lung cancer.

    PubMed

    Ligabue, Tommaso; Voltolini, Luca; Ghiribelli, Claudia; Luzzi, Luca; Rapicetta, Cristian; Gotti, Giuseppe

    2008-04-01

    Abscess of the residual lobe after lobectomy is a rare but potentially lethal complication. Between January 1975 and December 2006, 1,460 patients underwent elective pulmonary lobectomy for non-small-cell lung cancer at our institution. Abscess of the residual lung parenchyma occurred in 5 (0.3%) cases (4 bilobectomies and 1 lobectomy). Postoperative chest radiography showed incomplete expansion and consolidation of residual lung parenchyma. Flexible bronchoscopy revealed persistent bronchial occlusion from purulent secretions and/or bronchial collapse. Computed tomography in 3 patients demonstrated lung abscess foci. Surgical treatment included completion right pneumonectomy in 3 patients and a middle lobectomy in one. Complications after repeat thoracotomy comprised contralateral pneumonia and sepsis in 1 patient. Residual lobar abscess after lobectomy should be suspected in patients presenting with fever, leukocytosis, bronchial obstruction and lung consolidation despite antibiotic therapy, physiotherapy and bronchoscopy. Computed tomography is mandatory for early diagnosis. Surgical resection of the affected lobe is recommended.

  13. Exophthalmos due to odontogenic intraorbital abscess in Cebus apella.

    PubMed

    Oriá, Arianne P; Pinna, Melissa H; Estrela-Lima, Alessandra; Junior, Deusdete G; Libório, Fernanda A; de Assis Dórea Neto, Francisco; Oliveira, Alberto V D; Nogueira, Marcos; Requião, Katia

    2013-04-01

    The accumulation of pus in the orbit originating from an infected dental root is classified as odontogenic intraorbital abscess. Clinical, laboratory, and image evaluation of a non-human primate was performed. The patient was cured after surgical therapy. This represents the first report of an odontogenic periodontal abscess in Cebus apella. © 2013 John Wiley & Sons A/S. Published by Blackwell Publishing Ltd.

  14. Effective photodynamic therapy against microbial populations in human deep tissue abscess aspirates

    PubMed Central

    Haidaris, Constantine G.; Foster, Thomas H.; Waldman, David L.; Mathes, Edward J.; McNamara, JoAnne; Curran, Timothy

    2014-01-01

    Background and Objective The primary therapy for deep tissue abscesses is drainage accompanied by systemic antimicrobial treatment. However, the long antibiotic course required increases the probability of acquired resistance, and the high incidence of polymicrobial infections in abscesses complicates treatment choices. Photodynamic therapy (PDT) is effective against multiple classes of organisms, including those displaying drug resistance, and may serve as a useful adjunct to the standard of care by reduction of abscess microbial burden following drainage. Study Design/Materials and Methods Aspirates were obtained from 32 patients who underwent image-guided percutaneous drainage of the abscess cavity. The majority of the specimens (24/32) were abdominal, with the remainder from liver and lung. Conventional microbiological techniques and nucleotide sequence analysis of rRNA gene fragments were used to characterize microbial populations from abscess aspirates. We evaluated the sensitivity of microorganisms to methylene blue-sensitized PDT in vitro both within the context of an abscess aspirate and as individual isolates. Results Most isolates were bacterial, with the fungus Candida tropicalis also isolated from two specimens. We examined the sensitivity of these microorganisms to methylene blue-PDT. Complete elimination of culturable microorganisms was achieved in three different aspirates, and significant killing (p < 0.0001) was observed in all individual microbial isolates tested compared to controls. Conclusions These results and the technical feasibility of advancing optical fibers through catheters at the time of drainage motivate further work on including PDT as a therapeutic option during abscess treatment. PMID:23996629

  15. Effective photodynamic therapy against microbial populations in human deep tissue abscess aspirates.

    PubMed

    Haidaris, Constantine G; Foster, Thomas H; Waldman, David L; Mathes, Edward J; McNamara, Joanne; Curran, Timothy

    2013-10-01

    The primary therapy for deep tissue abscesses is drainage accompanied by systemic antimicrobial treatment. However, the long antibiotic course required increases the probability of acquired resistance, and the high incidence of polymicrobial infections in abscesses complicates treatment choices. Photodynamic therapy (PDT) is effective against multiple classes of organisms, including those displaying drug resistance, and may serve as a useful adjunct to the standard of care by reduction of abscess microbial burden following drainage. Aspirates were obtained from 32 patients who underwent image-guided percutaneous drainage of the abscess cavity. The majority of the specimens (24/32) were abdominal, with the remainder from liver and lung. Conventional microbiological techniques and nucleotide sequence analysis of rRNA gene fragments were used to characterize microbial populations from abscess aspirates. We evaluated the sensitivity of microorganisms to methylene blue-sensitized PDT in vitro both within the context of an abscess aspirate and as individual isolates. Most isolates were bacterial, with the fungus Candida tropicalis also isolated from two specimens. We examined the sensitivity of these microorganisms to methylene blue-PDT. Complete elimination of culturable microorganisms was achieved in three different aspirates, and significant killing (P < 0.0001) was observed in all individual microbial isolates tested compared to controls. These results and the technical feasibility of advancing optical fibers through catheters at the time of drainage motivate further work on including PDT as a therapeutic option during abscess treatment. © 2013 Wiley Periodicals, Inc.

  16. [A CASE OF MILIARY TUBERCULOSIS ASSOCIATED WITH HEPATOSPLENIC ABSCESSES APPEARING DURING ANTI-TUBERCULOUS TREATMENT].

    PubMed

    Okabayashi, Ken; Nishio, Kazumi; Aida, Shinji; Nakano, Yasushi

    2015-10-01

    A 27-year-old man with a 4-month history of treatment for miliary tuberculosis at another hospital was admitted to our hospital for continued treatment. Computed tomography showed new lesions in the S8 area of the liver and spleen, despite resolution of chest radiographic findings. Because these new lesions were still present after 8 months of treatment, we performed laparoscopic drainage of the liver abscess. Purulent material drained from the lesion revealed positive polymerase chain reaction results for Mycobacterium tuberculosis, and identification of granuloma with infiltrating lymphocytes and plasma cells confirmed the diagnosis of tubercular liver abscess. Pathological changes in the spleen over the clinical course were also regarded as representing tubercular abscess. Postoperative course was good, and tuberculosis treatment ended after 12 months. Tubercular liver abscess subsequently showed prominent reduction, and the tubercular splenic abscess disappeared on abdominal ultrasonography. Tubercular hepatosplenic abscesses appearing during tubercular treatment are rare. We report this valuable case in which laparoscopic drainage of a liver abscess proved useful for diagnosis and treatment.

  17. Aspiration of breast abscess under ultrasound guidance: outcome obtained and factors affecting success.

    PubMed

    Elagili, Faisal; Abdullah, Norlia; Fong, Liew; Pei, Tan

    2007-01-01

    To assess ultrasonographically (US) guided needle aspiration of breast abscesses as an alternative to surgical incision and drainage. In our prospective study, 30 patients with 31 breast abscesses (one patient had bilateral breast abscess) underwent percutaneous breast abscess drainage under US guidance with local anaesthesia and oral antibiotics between 1 January 2004 and 31 March 2005. These patients consisted of 16 (53.3%) non-lactating and 14 (46.7%) lactating women, with ages ranging from 18 to 68 years (median, 28 years). The racial distribution comprised 26 (86.7%) Malays, three (10%) Chinese and one (3.3%) Indian. All patients had the chief complaint of breast swelling and 25 (83.3%) had breast pain. Clinically, 28 (93.3%) were found to have a palpable mass. Nine (30%) lesions were in the upper outer quadrant of the left breast. US diameters ranged from 1 to 15 cm (median, 4 cm). The pus volumes varied from 1 to 200 mL (median, 14 mL). Fifteen (50%) patients required only a single aspiration, 10 required multiple aspirations and five required incision and drainage. Those patients in whom needle aspiration failed had multiloculated lesions irrespective of abscess volume and size. Needle aspiration with ultrasound guidance is an effective treatment for breast abscess irrespective of abscess volume and size.

  18. Nonpuerperal mastitis and subareolar abscess of the breast.

    PubMed

    Kasales, Claudia J; Han, Bing; Smith, J Stanley; Chetlen, Alison L; Kaneda, Heather J; Shereef, Serene

    2014-02-01

    The purpose of this article is to show radiologists how to readily recognize nonpuerperal subareolar abscess and its complications in order to help reduce the time to definitive therapy and improve patient care. To achieve this purpose, the various theories of pathogenesis and the associated histopathologic features are reviewed; the typical clinical characteristics are detailed in contrast to those seen in lactational abscess and inflammatory breast cancer; the common imaging findings are described with emphasis on the sonographic features; correlative pathologic findings are presented to reinforce the imaging findings as they pertain to disease origins; and the various treatment options are reviewed. Nonpuerperal subareolar mastitis and abscess is a benign breast entity often associated with prolonged morbidity. Through better understanding of the underlying disease process the imaging, physical, and clinical findings of this rare process can be more readily recognized and treatment options expedited, improving patient care.

  19. Numerical analysis of wellbore instability in gas hydrate formation during deep-water drilling

    NASA Astrophysics Data System (ADS)

    Zhang, Huaiwen; Cheng, Yuanfang; Li, Qingchao; Yan, Chuanliang; Han, Xiuting

    2018-02-01

    Gas hydrate formation may be encountered during deep-water drilling because of the large amount and wide distribution of gas hydrates under the shallow seabed of the South China Sea. Hydrates are extremely sensitive to temperature and pressure changes, and drilling through gas hydrate formation may cause dissociation of hydrates, accompanied by changes in wellbore temperatures, pore pressures, and stress states, thereby leading to wellbore plastic yield and wellbore instability. Considering the coupling effect of seepage of drilling fluid into gas hydrate formation, heat conduction between drilling fluid and formation, hydrate dissociation, and transformation of the formation framework, this study established a multi-field coupling mathematical model of the wellbore in the hydrate formation. Furthermore, the influences of drilling fluid temperatures, densities, and soaking time on the instability of hydrate formation were calculated and analyzed. Results show that the greater the temperature difference between the drilling fluid and hydrate formation is, the faster the hydrate dissociates, the wider the plastic dissociation range is, and the greater the failure width becomes. When the temperature difference is greater than 7°C, the maximum rate of plastic deformation around the wellbore is more than 10%, which is along the direction of the minimum horizontal in-situ stress and associated with instability and damage on the surrounding rock. The hydrate dissociation is insensitive to the variation of drilling fluid density, thereby implying that the change of the density of drilling fluids has a minimal effect on the hydrate dissociation. Drilling fluids that are absorbed into the hydrate formation result in fast dissociation at the initial stage. As time elapses, the hydrate dissociation slows down, but the risk of wellbore instability is aggravated due to the prolonged submersion in drilling fluids. For the sake of the stability of the wellbore in deep

  20. Endogenous Klebsiella endophthalmitis associated with liver abscess: first case report from iran.

    PubMed

    Dehghani, A R; Masjedi, A; Fazel, F; Ghanbari, H; Akhlaghi, M; Karbasi, N

    2011-01-07

    To report the first case of endogenous Klebsiella endophthalmitis associated with liver abscess in Iran. A 79-year-old man was referred to our hospital due to severe pain and visual loss in the left eye. On physical examination, conjunctival hyperemia, corneal edema, hypopyon and severe vitreous cellular reaction were identified in the left eye; however, yellowish conjunctival discoloration was more apparent in the right eye. Abdominal CT scan showed a right liver lobe abscess that was confirmed by sonographically guided percutaneous liver mass biopsy. Blood, vitreous and liver mass aspirate cultures revealed Klebsiella pneumoniae growth. The patient was thus diagnosed with endogenous Klebsiella endophthalmitis secondary to bacteremia associated with liver abscess. This report suggests that, rather than being confined to Taiwan, endogenous endophthalmitis secondary to a liver abscess due to K. pneumoniae may be a global problem. Therefore, physicians should be aware of the possibility of endophthalmitis whenever a patient with K. pneumoniae liver abscess complains of ocular symptoms.

  1. Oral Campylobacter Species Involved in Extraoral Abscess: a Report of Three Cases

    PubMed Central

    Han, Xiang Y.; Tarrand, Jeffrey J.; Rice, David C.

    2005-01-01

    Oral Campylobacter species are rarely reported to cause extraoral infections. Here we present three cases of extraoral abscess caused by an oral Campylobacter sp. and a Streptococcus sp. The Campylobacter species were all isolated anaerobically and identified by sequencing analysis of the 16S rRNA gene. The cases included a breast abscess caused by Campylobacter rectus and a non-group A beta-hemolytic streptococcus in a patient with lymphoma, a liver abscess caused by Campylobacter curvus and an alpha-hemolytic streptococcus in a patient with complicated ovarian cancer, and a postobstructive bronchial abscess caused by C. curvus and group C beta-hemolytic Streptococcus constellatus in a patient with lung cancer. The abscesses were drained or resected, and the patients were treated with antibiotics with full resolution of the lesions. The C. curvus cases are likely the first reported infections by this organism, and the C. rectus case represents the second such reported extraoral infection. PMID:15872299

  2. EUS-guided drainage is more successful in pancreatic pseudocysts compared with abscesses

    PubMed Central

    Sadik, Riadh; Kalaitzakis, Evangelos; Thune, Anders; Hansen, Jan; Jönson, Claes

    2011-01-01

    AIM: To compare the results for endoscopic ultrasound (EUS)-guided drainage of clear fluid pancreatic pseudocysts with the results for abscess drainage. METHODS: All patients referred for endoscopic drainage of a fluid collection were prospectively included. The outcome was recorded. RESULTS: Altogether 26 pseudocysts or abscesses were treated in 25 (6 female) patients. One endoscopist performed the procedures. Non-infected pseudocysts were present in 15 patients and 10 patients had infected fluid collections. The cyst size ranged between 28 cm × 13 cm and 5 cm × 5 cm. The EUS drainage was successful in 94% of the pseudocysts and in 80% of the abscesses (P = 0.04). The complication rate in pseudocysts was 6% and in abscesses was 30% (P = 0.02). Recurrence of a pseudocyst occurred in one patient (4%) after 6 mo; the patient was successfully retreated. CONCLUSION: EUS-guided drainage of pseudocysts is associated with a higher success rate and a lower complication rate compared with abscess drainage. PMID:21274380

  3. Surgical management of canine refractory retrobulbar abscesses: six cases.

    PubMed

    Tremolada, G; Milovancev, M; Culp, W T N; Bleedorn, J A

    2015-11-01

    To report the clinical presentation, surgical treatment and outcomes of dogs with retrobulbar abscesses refractory to intra-oral lancing and antibiotics. Medical records from January 2006 through September 2014 were reviewed and dogs with retrobulbar abscesses failing treatment with antibiotics and intra-oral lancing were included. Clinicopathologic, imaging and surgical details were extracted from the medical records. Referring veterinarians and owners were interviewed via telephone for follow-up data. A total of six dogs were included in the study. The most common clinical signs were pain upon opening of the mouth, exophthalmos and prolapsed nictitans. Computed tomography was performed in five dogs, ultrasound in four and magnetic resonance imaging in one. Imaging identified an abscess in all dogs, with a suspected foreign body in four dogs. Surgical approach was a modified lateral orbitotomy in five dogs. No foreign body was identified during surgery in all dog. All dogs surviving to discharge did not have recurrence of clinical signs (follow-up time range: 27 to 95 months). Dogs with retrobulbar abscesses refractory to standard therapy can experience long-term resolution of clinical signs with surgical treatment, most commonly via a modified lateral orbitotomy. © 2015 British Small Animal Veterinary Association.

  4. Novel fastidious, partially acid-fast, anaerobic Gram-positive bacillus associated with abscess formation and recovered from multiple medical centers.

    PubMed

    Harrington, S M; Bell, M; Bernard, K; Lagacé-Wiens, P; Schuetz, A N; Hartman, B; McQuiston, J R; Wilson, D; Lasalvia, M; Ng, B; Richter, S; Taege, A

    2013-11-01

    We report a novel anaerobe causing abscess in four patients at three hospitals. In the clinical specimen, bacilli were branching, Gram positive, and acid fast. The organism grew slowly and was not identified by 16S rRNA sequencing. Our findings support the description of a new genus and species of the suborder Corynebacterineae.

  5. Giant lung abscess treated by tube thoracostomy.

    PubMed

    Mengoli, L

    1985-08-01

    Pulmonary resection is the recommended treatment for large lung abscesses that do not respond to medical management. Tube thoracostomy, effective in the past, has been used less and less in recent years. Personal experience with three patients and a review of the literature led me to the following conclusions: In the treatment of a lung abscess 8 cm or larger, tube thoracostomy is an effective form of drainage, is probably safer than pulmonary resection, and may yield a superior result. Rather than being reserved as a desperation measure for poor risk patients, tube thoracostomy should be considered early in the hospital course.

  6. Role of percutaneous abscess drainage in the management of young patients with Crohn disease.

    PubMed

    Pugmire, Brian S; Gee, Michael S; Kaplan, Jess L; Hahn, Peter F; Doody, Daniel P; Winter, Harland S; Gervais, Debra A

    2016-05-01

    Intra-abdominal abscess is a common complication of Crohn disease in children. Prior studies, primarily in adults, have shown that percutaneous abscess drainage is a safe and effective treatment for this condition; however, the data regarding this procedure and indications in pediatric patients is limited. Our aim was to determine the success rate of percutaneous abscess drainage for abscesses related to Crohn disease in pediatric patients with a focus on treatment endpoints that are relevant in the era of biological medical therapy. We retrospectively reviewed 25 cases of patients ages ≤20 years with Crohn disease who underwent percutaneous abscess drainage. Technical success was defined as catheter placement within the abscess with reduction in abscess size on post-treatment imaging. Clinical success was defined as (1) no surgery within 1 year of drainage or (2) surgical resection following drainage with no residual abscess at surgery or on preoperative imaging. Multiple clinical parameters were analyzed for association with treatment success or failure. All cases were classified as technical successes. Nineteen cases were classified as clinical successes (76%), including 7 patients (28%) who required no surgery within 1 year of percutaneous drainage and 12 patients (48%) who had elective bowel resection within 1 year. There was a statistically significant association between resumption of immunosuppressive therapy within 8 weeks of drainage and both clinical success (P < 0.01) and avoidance of surgery after 1 year (P < 0.01). Percutaneous abscess drainage is an effective treatment for Crohn disease-related abscesses in pediatric patients. Early resumption of immunosuppressive therapy is statistically associated with both clinical success and avoidance of bowel resection, suggesting a role for percutaneous drainage in facilitating prompt initiation of medical therapy and preventing surgical bowel resection.

  7. Sex work, injection drug use, and abscesses: Associations in women, but not men.

    PubMed

    Wurcel, Alysse G; Burke, Deirdre; Skeer, Margie; Landy, David; Heimer, Robert; Wong, John B; Chui, Kenneth K H; Stopka, Thomas J

    2018-04-01

    Abscesses commonly occur among people who inject drugs (PWID). However, whether the risks are comparable between males and females, and the impact of sex work on abscess risk is unclear. The goal of this study was to examine the contemporary associations of gender and sex work with the risk of abscesses in PWID. Combining data from two cross-sectional studies conducted in the Greater Boston Area with people at risk for HIV and hepatitis C virus (HCV), we used the following inclusion criteria: age 18-45 years and report of illicit or non-prescription drug injection within the 30 days prior to the survey. Information on demographics, injection-mediated risks, and sexual behaviors was collected using Audio Computer-Assisted Self-Interview Software. Multivariable logistic regressions were used to model associations. The study sample included 298 people including 30% were female. Females were more likely than men to report sex work (28% vs. 16%, p = .012) and abscess during their lifetime (55% vs. 37% p = .004). Among the females, engaging in sex work increased by >5-fold the odds of reporting abscesses [Adjusted odds ratio 5.42; 95% CI: 1.27, 23.10]. There was no association between sex work and abscesses among men. We found a female-specific association between sex work, injection drug use, and abscesses among PWID. Although the cross-sectional designs precluded causal inferences, longitudinal studies could enhance understanding of gender-associated risks for abscesses and inform the development of harm reduction interventions. Published by Elsevier B.V.

  8. Numerical modeling of experimental observations on gas formation and multi-phase flow of carbon dioxide in subsurface formations

    NASA Astrophysics Data System (ADS)

    Pawar, R.; Dash, Z.; Sakaki, T.; Plampin, M. R.; Lassen, R. N.; Illangasekare, T. H.; Zyvoloski, G.

    2011-12-01

    One of the concerns related to geologic CO2 sequestration is potential leakage of CO2 and its subsequent migration to shallow groundwater resources leading to geochemical impacts. Developing approaches to monitor CO2 migration in shallow aquifer and mitigate leakage impacts will require improving our understanding of gas phase formation and multi-phase flow subsequent to CO2 leakage in shallow aquifers. We are utilizing an integrated approach combining laboratory experiments and numerical simulations to characterize the multi-phase flow of CO2 in shallow aquifers. The laboratory experiments involve a series of highly controlled experiments in which CO2 dissolved water is injected in homogeneous and heterogeneous soil columns and tanks. The experimental results are used to study the effects of soil properties, temperature, pressure gradients and heterogeneities on gas formation and migration. We utilize the Finite Element Heat and Mass (FEHM) simulator (Zyvoloski et al, 2010) to numerically model the experimental results. The numerical models capture the physics of CO2 exsolution, multi-phase fluid flow as well as sand heterogeneity. Experimental observations of pressure, temperature and gas saturations are used to develop and constrain conceptual models for CO2 gas-phase formation and multi-phase CO2 flow in porous media. This talk will provide details of development of conceptual models based on experimental observation, development of numerical models for laboratory experiments and modelling results.

  9. Intrauterine device infection causing concomitant streptococcal toxic shock syndrome and pelvic abscess with Actinomyces odontolyticus bacteraemia

    PubMed Central

    Wu, Carolyn M Yu; Noska, Amanda

    2016-01-01

    Intrauterine devices (IUDs) are rarely associated with serious infections. We report an unusual concomitant infection of group A Streptococcus (GAS) causing toxic shock syndrome and pelvic abscess with Actinomyces odontolyticus associated with an IUD in a healthy 50-year-old patient. The IUD was subsequently removed and the patient recovered on the appropriate antibiotics. This case highlights the importance of clinicians’ high index of suspicion of an IUD infection and prompt removal of the infected foreign body to obtain source control. PMID:26965406

  10. Recent Surgical Results for Active Endocarditis Complicated With Perivalvular Abscess.

    PubMed

    Yoshioka, Daisuke; Toda, Koichi; Yokoyama, Jun-Ya; Matsuura, Ryohei; Miyagawa, Shigeru; Shirakawa, Yukitoshi; Takahashi, Toshiki; Sakaguchi, Taichi; Fukuda, Hirotsugu; Sawa, Yoshiki

    2017-10-25

    Surgical treatment for endocarditis patients with a perivalvular abscess is still challenging.Methods and Results:From 2009 to 2016, 470 patients underwent surgery for active endocarditis at 11 hospitals. Of these, 226 patients underwent aortic valve surgery. We compared the clinical results of 162 patients without a perivalvular abscess, 37 patients who required patch reconstruction of the aortic annulus (PR group) and 27 who underwent aortic root replacement (ARR group). Patients with a perivalvular abscess had a greater number ofStaphylococcusspecies and prosthetic valve endocarditis, a greater level of inflammation at diagnosis and symptomatic heart failure before surgery, especially in the ARR group. Nevertheless, the duration between diagnosis and surgery was similar, because of a high prevalence of intracranial hemorrhage in the ARR group. Hospital death occurred in 13 (9%) patients without a perivalvular abscess, in 4 (12%) in the PR and in 7 (32%) in the ARR group. Postoperative inflammation and end-organ function were similar between the groups. Overall survival of patients without a perivalvular abscess and that of the PR group was similar, but was significantly worse in the ARR group (P=0.050, 0.026). Freedom from endocarditis recurrence was similar among all patients. Patients treated with patch reconstruction showed favorable clinical results. Early surgical intervention is necessary when a refractory invasive infection is suspected.

  11. Modern history of surgical management of lung abscess: from Harold Neuhof to current concepts.

    PubMed

    Schweigert, Michael; Dubecz, Attila; Stadlhuber, Rudolf J; Stein, Hubert J

    2011-12-01

    Harold Neuhof was one of the pioneers of thoracic surgery in the early decades of the last century. Inspired by his preceptor Howard Lilienthal he proposed an entirely new concept for surgery on acute lung abscess. The aim of his one-stage procedure was adequate drainage of the abscess cavity. His approach proved to be the first major breakthrough in the treatment of acute lung abscess. Therapy of pulmonary abscess was again radically changed by the advent of antibiotics in the late 1940s. However, the basic principles of Neuhof's concept still influence modern-day management of putrid lung abscess. Copyright © 2011 The Society of Thoracic Surgeons. Published by Elsevier Inc. All rights reserved.

  12. Malignancy Associated Iatrogenic Iliopsoas Abscess -Venous Access Complication From Ablation Procedure.

    PubMed

    Iskandar, Sandia; Atoui, Moustapha; Rizwan Afzal, Muhammad; Lavu, Madhav; Reddy, Madhu; Lakkireddy, Dhanunjaya

    2016-01-01

    Iliopsoas abscess is a rare condition with a high rate of mortality and morbidity if left untreated. It can occur from hematogenous or lymphatic spread from distant structures or as a result of contiguous spread from adjacent structures. The disease typically occurs in patients with immunocompromised status and the symptoms can be non-specific.1,2 Generally, infectious complications from venous access during atrial fibrillation (AF) procedure are uncommon, and an iatrogenic iliopsoas abscess from percutaneous cardiac procedures has never been reported. We present the first case of iliopsoas abscess from an ablation procedure.

  13. Tuberculous cold abscess of breast: an unusual presentation in a male patient.

    PubMed

    Brown, Sarah; Thekkinkattil, Dinesh K

    2016-06-01

    Tuberculosis (TB) of breast is a rare condition especially presentation as a cold abscess. We present a case of male patient with TB of lung and meninges with a cold abscess in the breast. The abscess was incidental finding on the computed tomography (CT) scan. This was further managed by a combination of anti-tuberculous chemotherapy treatment and surgical drainage. We reviewed the current literature related to mammary TB, its presentations and treatment.

  14. Tuberculous cold abscess of breast: an unusual presentation in a male patient

    PubMed Central

    Brown, Sarah

    2016-01-01

    Tuberculosis (TB) of breast is a rare condition especially presentation as a cold abscess. We present a case of male patient with TB of lung and meninges with a cold abscess in the breast. The abscess was incidental finding on the computed tomography (CT) scan. This was further managed by a combination of anti-tuberculous chemotherapy treatment and surgical drainage. We reviewed the current literature related to mammary TB, its presentations and treatment. PMID:27294045

  15. Association between deep neck space abscesses and internal carotid artery narrowing in pediatric patients

    PubMed

    Derinkuyu, Betül Emine; Boyunağa, Öznur; Polat, Meltem; Damar, Çağrı; Tapısız Aktaş, Anıl; Alımlı, Ayşe Gül; Öztunalı, Çiğdem; Kara, Soner Sertan; Uçar, Murat; Tezer, Hasan

    2017-12-19

    Background/aim: Our aim was to interpret the effects of deep neck space abscesses on the adjacent carotid artery according to abscess location, as well as to determine narrowing by calculating the mean stenosis ratios.Materials and methods: Neck computed tomography scans and clinical data of 45 children with neck abscesses were evaluated retrospectively for abscess location and internal carotid artery narrowing. The lumen areas of the carotid arteries were measured from standard levels, and stenosis ratios were calculated with two different techniques. The mean stenosis ratios of each group according to abscess location were then compared with the control group.Results: Among the 45 abscesses included in the study, 51.1% (n = 23/45) were located in the peritonsillar region, 37.8% (n = 17/45) were located in the parapharyngeal-lateral retropharyngeal space, and 11.1% (n = 5/45) were in the midline retropharyngeal space. We found a statistically significant difference between the mean stenosis ratios of the ipsilateral side of the parapharyngeal-lateral retropharyngeal abscesses and the control group (P < 0.01).Conclusion: The children with parapharyngeal-lateral retropharyngeal abscesses all had narrowing in the adjacent carotid lumen to some degree. Although most of the patients had no clinical symptoms, radiologists have to be aware of this arterial complication to prevent further progress and fatal complications.

  16. Breast abscess due to Salmonella Typhimurium in a patient with rheumatoid arthritis: a case report.

    PubMed

    Baran, Irmak; Aksu, Neriman; Aksoy, Altan

    2016-07-22

    This is the first report of breast abscess due to Salmonella enterica serotype Typhimurium. Staphylococcus aureus is known as the most common cause of breast abscess. Salmonella spp. may occasionally form localized abscesses after dissemination to various organ systems following a bacteraemia. But breast abscess related to Salmonella spp is a very rare complication. A 43-year-old female patient referred to our hospital with a lump, fever and mild pain in her breast. The patient was not pregnant or lactating at that time. She had a history of rheumatoid arthritis for 5 years and was under immunosuppressive therapy. Ultrasonography of the breast revealed an abscess. The abscess was drained and sent for culture to medical microbiology laboratory. The microorganism was identified as Salmonella enterica serotype Typhimurium and found to be sensitive to all antibiotics tested. The patient was cured after surgical debridement and antibiotic therapy. The abscess did not recur again. This case is presented to draw attention to non-typhoidal Salmonella as rare causes of breast abscess and submission of specimens to the microbiology laboratory for accurate diagnosis and treatment especially in patients with underlying immunosuppressive diseases.

  17. Management of Pleural Effusion, Empyema, and Lung Abscess

    PubMed Central

    Yu, Hyeon

    2011-01-01

    Pleural effusion is an accumulation of fluid in the pleural space that is classified as transudate or exudate according to its composition and underlying pathophysiology. Empyema is defined by purulent fluid collection in the pleural space, which is most commonly caused by pneumonia. A lung abscess, on the other hand, is a parenchymal necrosis with confined cavitation that results from a pulmonary infection. Pleural effusion, empyema, and lung abscess are commonly encountered clinical problems that increase mortality. These conditions have traditionally been managed by antibiotics or surgical placement of a large drainage tube. However, as the efficacy of minimally invasive interventional procedures has been well established, image-guided small percutaneous drainage tubes have been considered as the mainstay of treatment for patients with pleural fluid collections or a lung abscess. In this article, the technical aspects of image-guided interventions, indications, expected benefits, and complications are discussed and the published literature is reviewed. PMID:22379278

  18. Facial paralysis due to an occult parotid abscess.

    PubMed

    Orhan, Kadir Serkan; Demirel, Tayfun; Kocasoy-Orhan, Elif; Yenigül, Kubilay

    2008-01-01

    Facial paralysis associated with benign diseases of the parotid gland is very rare. It has been reported in approximately 16 cases of acute suppurative parotitis or parotid abscess. We presented a 45-year-old woman who developed facial paralysis secondary to an occult parotid abscess. Initially, there was no facial paralysis and the signs and symptoms were suggestive of acute parotitis, for which medical treatment was initiated. Three days later, left-sided facial palsy of HB (House-Brackmann) grade 5 developed. Ultrasonography revealed a pretragal, hypoechoic mass, 10x8 mm in size, causing inflammation in the surrounding tissue. Fine needle aspiration biopsy obtained from the mass revealed polymorphonuclear leukocytes and lymphocytes. No malignant cells were observed. The lesion was diagnosed as an occult parotid abscess. After a week, the mass disappeared and facial paralysis improved to HB grade 4. At the end of the first month, facial paralysis improved to HB grade 1. At three months, facial nerve function was nearly normal.

  19. In-situ Micro-structural Studies of Gas Hydrate Formation in Sedimentary Matrices

    NASA Astrophysics Data System (ADS)

    Kuhs, Werner F.; Chaouachi, Marwen; Falenty, Andrzej; Sell, Kathleen; Schwarz, Jens-Oliver; Wolf, Martin; Enzmann, Frieder; Kersten, Michael; Haberthür, David

    2015-04-01

    The formation process of gas hydrates in sedimentary matrices is of crucial importance for the physical and transport properties of the resulting aggregates. This process has never been observed in-situ with sub-micron resolution. Here, we report on synchrotron-based micro-tomographic studies by which the nucleation and growth processes of gas hydrate were observed in different sedimentary matrices (natural quartz, glass beds with different surface properties, with and without admixtures of kaolinite and montmorillonite) at varying water saturation. The nucleation sites can be easily identified and the growth pattern is clearly established. In under-saturated sediments the nucleation starts at the water-gas interface and proceeds from there to form predominantly isometric single crystals of 10-20μm size. Using a newly developed synchrotron-based method we have determined the crystallite size distributions (CSD) of the gas hydrate in the sedimentary matrix confirming in a quantitative and statistically relevant manner the impressions from the tomographic reconstructions. It is noteworthy that the CSDs from synthetic hydrates are distinctly smaller than those of natural gas hydrates [1], which suggest that coarsening processes take place in the sedimentary matrix after the initial hydrate formation. Understanding the processes of formation and coarsening may eventually permit the determination of the age of gas hydrates in sedimentary matrices [2], which are largely unknown at present. Furthermore, the full micro-structural picture and its evolution will enable quantitative digital rock physics modeling to reveal poroelastic properties and in this way to support the exploration and exploitation of gas hydrate resources in the future. [1] Klapp S.A., Hemes S., Klein H., Bohrmann G., McDonald I., Kuhs W.F. Grain size measurements of natural gas hydrates. Marine Geology 2010; 274(1-4):85-94. [2] Klapp S.A., Klein H, Kuhs W.F. First determination of gas hydrate

  20. Formation resistivity measurements from within a cased well used to quantitatively determine the amount of oil and gas present

    DOEpatents

    Vail, III, William B.

    1997-01-01

    Methods to quantitatively determine the separate amounts of oil and gas in a geological formation adjacent to a cased well using measurements of formation resistivity are disclosed. The steps include obtaining resistivity measurements from within a cased well of a given formation, obtaining the porosity, obtaining the resistivity of formation water present, computing the combined amounts of oil and gas present using Archie's Equations, determining the relative amounts of oil and gas present from measurements within a cased well, and then quantitatively determining the separate amounts of oil and gas present in the formation.

  1. Cervical spondylodiscitis with epidural abscess after knife stab wounds to the neck: A case report.

    PubMed

    Voelker, Anna; von der Hoeh, Nicolas H; Gulow, Jens; Heyde, Christoph-Eckhard

    2015-08-01

    Cervical spondylodiscitis is usually caused by pyogenic infections, associated with retropharyngeal abscesses, or due to the swallowing of foreign bodies. No cases of cervical spondylodiscitis caused by a penetrating neck injury have been published in the literature. We describe a case of cervical spondylodiscitis after multiple knife stab wounds to the lateral soft tissue of the neck. Case report and review of the literature. A 54-year-old patient was brought to our clinic with destructive spondylodiscitis C3/4 with paravertebral and epidural abscesses. He had been involved in a fight and had suffered multiple stab wounds to his neck with a knife 1 month prior. The initial CT scan had revealed one deeper wound canal behind the sternocleidomastoid muscle on the left side without any injury to the vessels. The wound was cleaned and an antibiotic therapy with cefuroxime was given for 1 week. After an uneventful and complete healing of the wound the patient developed severe neck pain. Inflammatory laboratory parameters were elevated, and a MRI of the neck revealed a distinct spondylodiscitis C3/4 with paravertebral and epidural abscess formations. Surgery was performed and included debridement, abscess drainage, decompression of the spinal canal, fusion of the C3/4 segment using an autologous iliac crest bone graft and a plate osteosynthesis. A course of calculated antibiotic therapy was administered for 8 weeks. Normal laboratory parameters and no radiological signs of an ongoing inflammatory process were observed during follow-up examinations. The C3/4 segment was consolidated. Stab wound injuries to the neck not only bear the risk of injuries to the nerves, vessels and organs of the neck but also increase the risk of developing secondary spondylodiscitis. Specifically, cervical spondylodiscitis can result in distinct neurological symptoms, and surgical intervention should be performed in a timely manner. Copyright © 2015 Elsevier Ltd. All rights reserved.

  2. Natural mutations in a Staphylococcus aureus virulence regulator attenuate cytotoxicity but permit bacteremia and abscess formation

    PubMed Central

    Das, Sudip; Lindemann, Claudia; Young, Bernadette C.; Muller, Julius; Österreich, Babett; Ternette, Nicola; Winkler, Ann-Cathrin; Paprotka, Kerstin; Reinhardt, Richard; Allen, Elizabeth; Flaxman, Amy; Yamaguchi, Yuko; Rollier, Christine S.; van Diemen, Pauline; Blättner, Sebastian; Remmele, Christian W.; Selle, Martina; Dittrich, Marcus; Müller, Tobias; Vogel, Jörg; Ohlsen, Knut; Crook, Derrick W.; Massey, Ruth; Wilson, Daniel J.; Rudel, Thomas; Wyllie, David H.; Fraunholz, Martin J.

    2016-01-01

    Staphylococcus aureus is a major bacterial pathogen, which causes severe blood and tissue infections that frequently emerge by autoinfection with asymptomatically carried nose and skin populations. However, recent studies report that bloodstream isolates differ systematically from those found in the nose and skin, exhibiting reduced toxicity toward leukocytes. In two patients, an attenuated toxicity bloodstream infection evolved from an asymptomatically carried high-toxicity nasal strain by loss-of-function mutations in the gene encoding the transcription factor repressor of surface proteins (rsp). Here, we report that rsp knockout mutants lead to global transcriptional and proteomic reprofiling, and they exhibit the greatest signal in a genome-wide screen for genes influencing S. aureus survival in human cells. This effect is likely to be mediated in part via SSR42, a long-noncoding RNA. We show that rsp controls SSR42 expression, is induced by hydrogen peroxide, and is required for normal cytotoxicity and hemolytic activity. Rsp inactivation in laboratory- and bacteremia-derived mutants attenuates toxin production, but up-regulates other immune subversion proteins and reduces lethality during experimental infection. Crucially, inactivation of rsp preserves bacterial dissemination, because it affects neither formation of deep abscesses in mice nor survival in human blood. Thus, we have identified a spontaneously evolving, attenuated-cytotoxicity, nonhemolytic S. aureus phenotype, controlled by a pleiotropic transcriptional regulator/noncoding RNA virulence regulatory system, capable of causing S. aureus bloodstream infections. Such a phenotype could promote deep infection with limited early clinical manifestations, raising concerns that bacterial evolution within the human body may contribute to severe infection. PMID:27185949

  3. Gas hydrate formation in the deep sea: In situ experiments with controlled release of methane, natural gas, and carbon dioxide

    USGS Publications Warehouse

    Brewer, P.G.; Orr, F.M.; Friederich, G.; Kvenvolden, K.A.; Orange, D.L.

    1998-01-01

    We have utilized a remotely operated vehicle (ROV) to initiate a program of research into gas hydrate formation in the deep sea by controlled release of hydrocarbon gases and liquid CO2 into natural sea water and marine sediments. Our objectives were to investigate the formation rates and growth patterns of gas hydrates in natural systems and to assess the geochemical stability of the reaction products over time. The novel experimental procedures used the carrying capacity, imaging capability, and control mechanisms of the ROV to transport gas cylinders to depth and to open valves selectively under desired P-T conditions to release the gas either into contained natural sea water or into sediments. In experiments in Monterey Bay, California, at 910 m depth and 3.9??C water temperature we find hydrate formation to be nearly instantaneous for a variety of gases. In sediments the pattern of hydrate formation is dependent on the pore size, with flooding of the pore spaces in a coarse sand yielding a hydrate cemented mass, and gas channeling in a fine-grained mud creating a veined hydrate structure. In experiments with liquid CO2 the released globules appeared to form a hydrate skin as they slowly rose in the apparatus. An initial attempt to leave the experimental material on the sea floor for an extended period was partially successful; we observed an apparent complete dissolution of the liquid CO2 mass, and an apparent consolidation of the CH4 hydrate, over a period of about 85 days.

  4. Spinal epidural abscesses in children: a 15-year experience and review of the literature.

    PubMed

    Auletta, J J; John, C C

    2001-01-01

    We reviewed medical records and laboratory and diagnostic evaluations for 8 pediatric patients with spinal epidural abscesses who were treated during the last 15 years at our institution. Staphylococcus aureus was isolated from 5 of 8 epidural abscesses, including 2 abscesses with methicillin-resistant S. aureus. Unusual isolates were group B Streptococcus in a patient with chronic vesicouretral reflux associated with the posterior urethral valves and Aspergillus flavus in a patient with acute myelogenous leukemia. An analysis incorporating our results and a review of the English-language literature about abscesses in children and adults revealed differences related to age. Abscesses in children were more posterior in epidural location, had greater spinal column extension, and were associated with more favorable clinical outcomes than were abscesses in adults. Magnetic resonance imaging is the diagnostic procedure of choice; however, radionuclide bone scans should be considered for associated distant osteomyelitis in children. Prompt diagnosis and combined medical and surgical treatment remain the cornerstones for the prevention of adverse outcomes.

  5. Abscesses of the frontal lobe of the brain secondary to covert dental sepsis.

    PubMed

    Ingham, H R; Kalbag, R M; Tharagonnet, D; High, A S; Sengupta, R P; Selkon, J B

    1978-09-02

    The bacterial species found in pus aspirated from brain abscesses in two patients were typical of those found in dental sepsis. Subsequently apical-root abscesses were demonstrated in the upper jaws of both patients. This evidence strongly suggests that these cerebral abscesses were secondary to dental sepsis which could have spread from the teeth to the frontal lobes by several possible antaomical pathways.

  6. A hybrid scenario for gas giant planet formation in rings

    NASA Astrophysics Data System (ADS)

    Durisen, Richard H.; Cai, Kai; Mejía, Annie C.; Pickett, Megan K.

    2005-02-01

    The core-accretion mechanism for gas giant formation may be too slow to create all observed gas giant planets during reasonable gas disk lifetimes, but it has yet to be firmly established that the disk instability model can produce permanent bound gaseous protoplanets under realistic conditions. Based on our recent simulations of gravitational instabilities in disks around young stars, we suggest that, even if instabilities due to disk self-gravity do not produce gaseous protoplanets directly, they may create persistent dense rings that are conducive to accelerated growth of gas giants through core accretion. The rings occur at and near the boundary between stable and unstable regions of the disk and appear to be produced by resonances with discrete spiral modes on the unstable side.

  7. Prostatic abscess: diagnosis and management in the modern antibiotic era.

    PubMed

    Tiwari, Punit; Pal, Dilip K; Tripathi, Astha; Kumar, Suresh; Vijay, Mukesh; Goel, Amit; Sharma, Pramod; Dutta, Arindam; Kundu, Anup K

    2011-03-01

    This retrospective study was aimed at analyzing the clinical findings and therapeutic strategies in 24 patients who were admitted with prostatic abscess, during the period from 1999 to 2008. The diagnosis of prostatic abscesses was made clinically by digital rectal palpation based on the presence of positive fluctuation with tenderness. All cases were confirmed by trans-rectal ultrasound (TRUS), and only positive cases were included in this study. The diagnostic work-up included analysis of midstream urine and abscess fluid culture for pathogens. Therapeutic options included endoscopic trans-urethral incision or trans-perineal aspiration under ultrasound guidance, or conservative therapy. Of the 24 patients studied, 45.83% of the cases had a pre-disposing factor, and diabetes mellitus (37.50%) was the most common. Digital rectal palpation revealed fluctuation in 70.83% of the cases. Trans-abdominal ultrasonography missed the condition in 29.16% of the cases. On TRUS, all the study patients showed hypo-echoic zones, while nine others showed internal septations. In most of the cases, the lesion was peripheral. A causative pathogen could be identified in 70.83% of the cases. Surgical drainage of the abscess by trans-urethral deroofing was performed in 17 cases (including one with failed aspiration), trans-perineal aspiration under TRUS guidance was performed in three cases and conservative therapy was followed in five cases. Our data confirms the importance of predisposing factors in the pathogenesis of prostatic abscess. In most of the cases, the clue to diagnosis is obtained by digital rectal palpation. TRUS gives the definite diagnosis and also helps in follow-up of patients. Trans-urethral deroofing is the ideal therapy where the abscess cavity is more than 1 cm, although in some selected cases, TRUS-guided aspiration or conservative therapy does have a role in treatment.

  8. Brucella pelvic tubo-ovarian abscess mimicking a pelvic malignancy.

    PubMed

    Seoud, Muhiedine A F; Kanj, Suha S; Habli, Munira; Araj, George F; Khalil, Ali M

    2003-01-01

    A 57-y-old woman presented with recurrent abdominal and pelvic pain of 6 months' duration with low-grade fever. A computed tomographic scan indicated an ovarian tumor. Laparotomy revealed a pelvic abscess. Her symptoms resolved following surgery and antibiotic therapy. Pathology revealed an extensive inflammatory process. Tissue culture grew Brucella sp. The diagnosis and management of this previously undescribed pelvic tubo-ovarian abscess present a particular challenge.

  9. An unclassified Eubacterium taxon in acute dento-alveolar abscess.

    PubMed

    Wade, W G; Lewis, M A; Cheeseman, S L; Absi, E G; Bishop, P A

    1994-02-01

    The microflora of pus samples aspirated from 50 acute dento-alveolar abscesses was examined. A total of 143 bacterial strains was isolated, consisting predominantly of Prevotella spp., alpha-haemolytic Streptococcus spp., Peptostreptococcus spp. and Eubacterium spp. An unclassified asaccharolytic Eubacterium taxon was encountered in 17 (34%) of the abscesses. This taxon was found to have a positive association with Fusobacterium spp. and a negative association with alpha-haemolytic Streptococcus spp.

  10. Management of colorectal emergencies: percutaneous abscess drainage.

    PubMed

    Brusciano, L; Maffettone, V; Napolitano, V; Izzo, G; Rossetti, G; Izzo, D; Russo, F; Russo, G; del Genio, G; del Genio, A

    2004-01-01

    Pelvic abscesses represent the most frequent complications of colorectal surgery. Percutaneous CT or US guided drainage can be an alternative to surgical drainage that is associated to a significant mortality rate. In the current study results of PAD, performed in 39 patients with pelvic or abdominopelvic abscesses were reviewed in order to evaluate reliability of such procedure. Major part of the collections 33/39 (85%) developed after resective colorectal surgery, and 20/39 (51%) were associated to anastomotic fistula; 22/39 (56%) were poorly defined; 16/39 (41%) were multiloculated; 16/39 (41%) had a stool contamination, 23/39 (58%) were greater than 10 cm; 14/39 (35%) were multiple. Thirty-five patients (89.7%) healed, despite high number of complex abscesses and complete resolution of sepsis was achieved in 5.1 +/- 2.9 days. CT proved to be the most reliable tool in assessing distinctive features of collections as well as in identifying the best route for drainage. Adequate size of the catheter was essential to get an effective drainage. In particular, large sized catheter (> 20 Fr) had to be used to drain collections associated to anastomotic fistulas with stool contamination. In four elderly neoplastic patients with chronic illnesses (10%), only a single small sized catheter could be positioned, because of patients poor compliance and PAD was inaffective. Nevertheless even those patients got a partial resolution of the sepsis and their general conditions markedly improved, so that they were able to underwent successful surgical drainage. In conclusion PAD is a safe and reliable tool that can be employed as an alternative to surgical drainage at least as first measure, even if complex pelvic abscesses are found.

  11. Lingual Abscess in the Setting of Recent Periodontal Antibiotic Injections.

    PubMed

    Lefler, Joshua E; Masullo, Lawrence N

    2016-10-01

    Lingual abscess is a rare clinical entity, with posterior involvement being much less common than anterior involvement. Typical inciting events include trauma or direct inoculation to the area. The clinical diagnosis can be difficult, and early imaging and specialist consultation should be pursued to make a definitive diagnosis and to prevent patient deterioration. We present a case of posterior lingual abscess in a 62-year-old man after he received antibiotic injections to the lower molars for periodontal disease. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Lingual abscess is a rare condition that is difficult to diagnose clinically. Misdiagnosis or delayed diagnosis can lead to acute airway compromise and increased morbidity. Published by Elsevier Inc.

  12. Cervical Epidural Abscess Mimicking as Stroke - Report of Two Cases

    PubMed Central

    Velpula, Jagan Mohana Reddy; Gakhar, Harinder; Sigamoney, Kohilavani; Bommireddy, Rajendra

    2014-01-01

    Background: Stroke is a common provisional diagnosis in patients presenting to the emergency department (ED) with unilateral neurological deficit. Cervical epidural abscess (CEA) may also present clinically with a unilateral neurological deficit. Objects: To highlight the inherent problems with diagnosing cervical epidural abscess and possible consequences of delay in diagnosis. Case Report: We would like to highlight two cases provisionally diagnosed as stroke. Both cases turned out to be cervical epidural abscesses. The delay in diagnosis and treatment led to suboptimal outcome in both cases. Summary: Cases with suspected stroke who deteriorate while under treatment or whose diagnosis is doubtful should have MRI whole spine in order to avoid potential complications. PMID:24551026

  13. Epizootiology of cranial abscess disease in white-tailed deer (Odocoileus virginianus) of Georgia, USA

    USGS Publications Warehouse

    Cohen, Bradley S.; Belser, Emily H.; Killmaster, Charlie H.; Bowers, John W.; Irwin, Brian J.; Yabsley, Michael J.; Miller, Karl V.

    2015-01-01

    Intracranial abscess disease is a cause of natural mortality for mature male white-tailed deer (Odocoileus virginianus). Most cases of abscesses are associated with bacterial infection byTrueperella (Arcanobacterium) pyogenes, but a complete understanding of the epidemiology of this disease is lacking. We quantified the effects of individual characteristics, site-specific herd demographics, land cover, and soil variables in estimating the probability of this disease. We examined 7,545 white-tailed deer from 60 sites throughout Georgia US for signs of cranial abscesses, the predecessor of intracranial abscesses, and recorded the presence or absence of cranial abscesses for each individual examined. We detected no cranial abscesses in 2,562 female deer but 91 abscesses in 4,983 male deer examined (1.8%). A generalized linear mixed model, treating site as a random effect, was used to examine several potential explanatory risk factors including site-level landscape and soil characteristics (soil and forest type), demographic factors (deer density and male to female ratio), and individual host factors (deer sex and age). Model results indicated that the probability of a male having a cranial abscess increased with age and that adult sex ratio (male:female) was positively associated with this disease. Site-specific variables for land cover and soil types were not strongly associated with observations of the disease at the scale measured and a large amount of among-site variability remained. Given the demonstrated effect of age, gender, and local sex ratios but the remaining unexplained spatial variability, additional investigation into spatiotemporal variation of the presumed bacterial causative agent of cranial abscesses appears warranted.

  14. Transbronchial drainage using endobronchial ultrasonography with guide sheath for lung abscess: A case report.

    PubMed

    Yaguchi, Daizo; Ichikawa, Motoshi; Inoue, Noriko; Kobayashi, Daisuke; Shizu, Masato; Imai, Naoyuki

    2018-05-01

    Lung abscess was previously treated surgically, but is now mainly treated with antibiotics and ideally with direct drainage, although postural drainage canalso be used. A chest abnormal shadow was detected in an 82-year-old man and he was referred to our department in November 2017. On chest computed tomography (CT), a low-density mass shadow was present in the left S8 segment. Lung abscess and lung cancer were considered as differential diagnoses, and treatment with sulbactam sodium/ampicillin sodium (SBT/ABPC) was first initiated for lung abscess. The etiologic agent could not be identified by sputum examination, and the abscess shadow remained. Lung abscess. Endobronchial ultrasonography with a guide sheath (EBUS-GS)-guided bronchoscopy was performed on hospital day 21 to diagnose the lesion, identify the etiologic agent if the lesion was a lung abscess, and attempt drainage. Vacuum aspiration performed in the guide sheath after the probe was placed within the lesion produced 4-5 ml of gray turbid pus, and the abscess was judged to have been drained. A subsequent pathological examination did not detect malignant cells. Klebsiella pneumoniae, Prevotella spp. was identified as the etiologic agent in bacteriological tests. Antibiotics were changed based on sensitivity test results, and drainage was similarly performed on hospital day 28. The shadow gradually improved and disappeared. Therefore, this procedure and treatment led to identification of the etiologic agent and helped with cure of the disease. Based on the basic principle of treatment for abscess using as much drainage as possible, EBUS-GS-guided transbronchial drainage may be considered to be a "new procedure" for lung abscess.

  15. Testing the universality of the star-formation efficiency in dense molecular gas

    NASA Astrophysics Data System (ADS)

    Shimajiri, Y.; André, Ph.; Braine, J.; Könyves, V.; Schneider, N.; Bontemps, S.; Ladjelate, B.; Roy, A.; Gao, Y.; Chen, H.

    2017-08-01

    Context. Recent studies with, for example, Spitzer and Herschel have suggested that star formation in dense molecular gas may be governed by essentially the same "law" in Galactic clouds and external galaxies. This conclusion remains controversial, however, in large part because different tracers have been used to probe the mass of dense molecular gas in Galactic and extragalactic studies. Aims: We aimed to calibrate the HCN and HCO+ lines commonly used as dense gas tracers in extragalactic studies and to test the possible universality of the star-formation efficiency in dense gas (≳104 cm-3), SFEdense. Methods: We conducted wide-field mapping of the Aquila, Ophiuchus, and Orion B clouds at 0.04 pc resolution in the J = 1 - 0 transition of HCN, HCO+, and their isotopomers. For each cloud, we derived a reference estimate of the dense gas mass MHerschelAV > 8, as well as the strength of the local far-ultraviolet (FUV) radiation field, using Herschel Gould Belt survey data products, and estimated the star-formation rate from direct counting of the number of Spitzer young stellar objects. Results: The H13CO+(1-0) and H13CN(1-0) lines were observed to be good tracers of the dense star-forming filaments detected with Herschel. Comparing the luminosities LHCN and LHCO+ measured in the HCN and HCO+ lines with the reference masses MHerschelAV > 8, the empirical conversion factors αHerschel - HCN (=MHerschelAV > 8/LHCN) and αHerschel - HCO+ (=MHerschelAV > 8/LHCO+) were found to be significantly anti-correlated with the local FUV strength. In agreement with a recent independent study of Orion B by Pety et al., the HCN and HCO+ lines were found to trace gas down to AV ≳ 2. As a result, published extragalactic HCN studies must be tracing all of the moderate density gas down to nH2 ≲ 103 cm-3. Estimating the contribution of this moderate density gas from the typical column density probability distribution functions in nearby clouds, we obtained the following G0

  16. Health and Economic Burden of Post-Partum Staphylococcus aureus Breast Abscess

    PubMed Central

    Branch-Elliman, Westyn; Lee, Grace M.; Golen, Toni H.; Gold, Howard S.; Baldini, Linda M.; Wright, Sharon B.

    2013-01-01

    Objectives To determine the health and economic burdens of post-partum Staphylococcus aureus breast abscess. Study design We conducted a matched cohort study (N = 216) in a population of pregnant women (N = 32,770) who delivered at our center during the study period from 10/1/03–9/30/10. Data were extracted from hospital databases, or via chart review if unavailable electronically. We compared cases of S. aureus breast abscess to controls matched by delivery date to compare health services utilization and mean attributable medical costs in 2012 United States dollars using Medicare and hospital-based estimates. We also evaluated whether resource utilization and health care costs differed between cases with methicillin-resistant and -susceptible S. aureus isolates. Results Fifty-four cases of culture-confirmed post-partum S. aureus breast abscess were identified. Breastfeeding cessation (41%), milk fistula (11.1%) and hospital readmission (50%) occurred frequently among case patients. Breast abscess case patients had high rates of health services utilization compared to controls, including high rates of imaging and drainage procedures. The mean attributable cost of post-partum S. aureus breast abscess ranged from $2,340–$4,012, depending on the methods and data sources used. Mean attributable costs were not significantly higher among methicillin-resistant vs. –susceptible S. aureus cases. Conclusions Post-partum S. aureus breast abscess is associated with worse health and economic outcomes for women and their infants, including high rates of breastfeeding cessation. Future study is needed to determine the optimal treatment and prevention of these infections. PMID:24039877

  17. Health and economic burden of post-partum Staphylococcus aureus breast abscess.

    PubMed

    Branch-Elliman, Westyn; Lee, Grace M; Golen, Toni H; Gold, Howard S; Baldini, Linda M; Wright, Sharon B

    2013-01-01

    To determine the health and economic burdens of post-partum Staphylococcus aureus breast abscess. We conducted a matched cohort study (N = 216) in a population of pregnant women (N = 32,770) who delivered at our center during the study period from 10/1/03-9/30/10. Data were extracted from hospital databases, or via chart review if unavailable electronically. We compared cases of S. aureus breast abscess to controls matched by delivery date to compare health services utilization and mean attributable medical costs in 2012 United States dollars using Medicare and hospital-based estimates. We also evaluated whether resource utilization and health care costs differed between cases with methicillin-resistant and -susceptible S. aureus isolates. Fifty-four cases of culture-confirmed post-partum S. aureus breast abscess were identified. Breastfeeding cessation (41%), milk fistula (11.1%) and hospital readmission (50%) occurred frequently among case patients. Breast abscess case patients had high rates of health services utilization compared to controls, including high rates of imaging and drainage procedures. The mean attributable cost of post-partum S. aureus breast abscess ranged from $2,340-$4,012, depending on the methods and data sources used. Mean attributable costs were not significantly higher among methicillin-resistant vs. -susceptible S. aureus cases. Post-partum S. aureus breast abscess is associated with worse health and economic outcomes for women and their infants, including high rates of breastfeeding cessation. Future study is needed to determine the optimal treatment and prevention of these infections.

  18. Computation on free gas seepage and associated seabed pockmark formation

    NASA Astrophysics Data System (ADS)

    Su, Z.; Cathles, Lawrence M.; Chen, D. F.; Wu, N. Y.

    2010-03-01

    Seabed pockmarks formed by seepage of subsurface fluids are very commonly located in areas where gas is present in near-surface sediments. Especially, they are widely observed on the seafloor at hydrate regions around the world. In this paper we consider that capillary sealing is the crucial mechanism for gas entrapment, gas escape, and pockmark formation. In the hydrate system, free gas is trapped beneath the hydrate layer. The gas overpressure increases as the gas accumulates beneath the hydrate. the hydrate layer is a capillary seal. Capillary seals have the property that they fail completely when the gas pressure reaches the point that they are invaded by gas. The release of gas is thus episodic and sudden. We imagine in our model that when it occurs the venting gas will push the overlying water upward at increasingly higher velocities as the gas pipe approaches the seafloor. As the water velocity increases, the near surface sediments will become quick at a depth that is a function of the thickness of free gas column under the hydrate seal and the depth of hydrate seal, leaving a pockmark on the seafloor. The model shows that at least a 22-m-thick free gas layer beneath the hydrate at Blake Ridge is needed to form the 4-m-deep pockmark at the seabed.

  19. Methicillin-resistant Staphylococcus aureus hepatic abscess in a patient with sickle-cell disease.

    PubMed

    Mancao, M; Estrada, B; Wilson, F; Figarola, M; Wesenberg, R

    2007-12-01

    We report a case of a 16-year-old female patient with sickle-cell disease with a liver abscess secondary to methicillin-resistant Staphylococcus aureus (MRSA). She had initially presented with jaundice and abdominal pain and subsequently underwent endoscopic retrograde cholangio-pancreaticography followed by laparoscopic cholecystectomy for removal of gallstones. However, post-cholecystectomy she presented with generalized abdominal pain and computed tomography scan of the abdomen revealed a liver abscess. A pigtail catheter was inserted into the abscess and culture of the aspirate yielded MRSA (susceptibility pattern of the organism was compatible with community-acquired MRSA). She was treated with intravenous clindamycin for 6 weeks with complete resolution of the abscess.

  20. Tooth loss due to periodontal abscess: a retrospective study.

    PubMed

    McLeod, D E; Lainson, P A; Spivey, J D

    1997-10-01

    This retrospective study focused on the frequency of tooth loss due to periodontal abscess among 42 patients who were treated by a single clinician over a 5- to 29-year period. A total of 114 patients were selected from the active periodontal recall schedule of a single periodontist at The University of Iowa College of Dentistry. The criteria for inclusion in the study included having a history of moderate to advanced periodontitis, being on 3 to 6 month recall periodontal maintenance care, and completion of active periodontal therapy prior to October 1987. Other parameters evaluated were age; gender; number of teeth present and missing at the initial, reevaluation, and last periodontal recall visit; initial periodontal prognosis; furcation involvement; non-surgical and surgical periodontal therapy; and reasons for tooth loss. Patients were grouped according to the number of teeth lost following active periodontal treatment into well-maintained (0 to 3), downhill (4 to 9), and extreme downhill (10 to 23) groups. Forty-two of the 114 patients were identified as having one or more periodontal abscesses. A total of 109 teeth were affected by periodontal abscess of which 49 (45%) teeth were lost and 60 (55%) were successfully maintained over an average of 12.5 years (5 to 29 years). More furcated teeth were lost than nonfurcated teeth and teeth given a hopeless prognosis were lost more consistently than those given a questionable prognosis in all groups. The frequency of periodontal abscess and tooth loss per patient was greater in the downhill and extreme downhill response groups than the well-maintained group. This suggests that teeth with a history of periodontal abscess can be treated and maintained for several years.

  1. Acute abdomen caused by brucellar hepatic abscess.

    PubMed

    Ibis, Cem; Sezer, Atakan; Batman, Ali K; Baydar, Serkan; Eker, Alper; Unlu, Ercument; Kuloglu, Figen; Cakir, Bilge; Coskun, Irfan

    2007-10-01

    Brucellosis is a zoonotic infection that is transmitted from animals to humans by ingestion of infected food products, direct contact with an infected animal, or aerosol inhalation. The disease is endemic in many countries, including the Mediterranean basin, the Middle East, India, Mexico, Central and South America and, central and southwest Asia. Human brucellosis is a systemic infection with a wide clinical spectrum. Although hepatic involvement is very common during the course of chronic brucellosis, hepatic abscess is a very rare complication of Brucella infection. We present a case of hepatic abscess caused by Brucella, which resembled the clinical presentation of surgical acute abdomen.

  2. Risks and benefits in treatment of mediastinal abscess by endobronchial ultrasound-guided transbronchial needle aspiration.

    PubMed

    Tian, Lei; Krimsky, William S; Wu, Qingchen; Sun, Jiayuan

    2017-07-01

    Mediastinal abscess is a fatal condition, treatment of mediastinal abscess is with antibiotics and sometimes surgery for debridement and drainage. Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is a safe assessment and candidate treatment method of mediastinal lesions. This study aimed to HYPERLINK "javascript:void(0);" discuss risks and benefits in treatment of mediastinal abscess by EBUS-TBNA. We noticed a 56-year-old man with developed bilateral pneumonia and sepsis after puncture of mediastinal abscess by EBUS-TBNA. The patient was successfully treated with a combination of systemic anti-infection treatment and intracavitary administration of antibiotics, antifungal and repeated drainage and lavage via EBUS-TBNA, in 1 year follow-up without recurrence. This study indicated infection spread risk of mediastinal abscess after EBUS-TBNA, and mediastinal abscess was successfully cured by combination of systemic anti-infection and local intervention through EBUS-TBNA. EBUS-TBNA is a potential effective minimally invasive treatment for mediastinal abscess, and it is necessary to be aware of clinical complications after puncture of mediastinal infectious lesions by EBUS-TBNA. © 2015 John Wiley & Sons Ltd.

  3. Formation of complex organic molecules in cold objects: the role of gas-phase reactions

    NASA Astrophysics Data System (ADS)

    Balucani, Nadia; Ceccarelli, Cecilia; Taquet, Vianney

    2015-04-01

    While astrochemical models are successful in reproducing many of the observed interstellar species, they have been struggling to explain the observed abundances of complex organic molecules. Current models tend to privilege grain surface over gas-phase chemistry in their formation. One key assumption of those models is that radicals trapped in the grain mantles gain mobility and react on lukewarm ( ≳ 30 K) dust grains. Thus, the recent detections of methyl formate (MF) and dimethyl ether (DME) in cold objects represent a challenge and may clarify the respective role of grain-surface and gas-phase chemistry. We propose here a new model to form DME and MF with gas-phase reactions in cold environments, where DME is the precursor of MF via an efficient reaction overlooked by previous models. Furthermore, methoxy, a precursor of DME, is also synthesized in the gas phase from methanol, which is desorbed by a non-thermal process from the ices. Our new model reproduces fairly well the observations towards L1544. It also explains, in a natural way, the observed correlation between DME and MF. We conclude that gas-phase reactions are major actors in the formation of MF, DME and methoxy in cold gas. This challenges the exclusive role of grain-surface chemistry and favours a combined grain-gas chemistry.

  4. Formation resistivity measurements from within a cased well used to quantitatively determine the amount of oil and gas present

    DOEpatents

    Vail, W.B. III

    1997-05-27

    Methods to quantitatively determine the separate amounts of oil and gas in a geological formation adjacent to a cased well using measurements of formation resistivity are disclosed. The steps include obtaining resistivity measurements from within a cased well of a given formation, obtaining the porosity, obtaining the resistivity of formation water present, computing the combined amounts of oil and gas present using Archie`s Equations, determining the relative amounts of oil and gas present from measurements within a cased well, and then quantitatively determining the separate amounts of oil and gas present in the formation. 7 figs.

  5. Gas in Debris Disks and the Volatiles of Terrestrial Planet Formation

    NASA Technical Reports Server (NTRS)

    Kuchner, Marc

    2010-01-01

    Debris disks are a kind of protoplanetary disk that likely corresponds to the epoch of terrestrial planet and outer planet formation. Previously pictured to be gas-free, some debris disks are now revealing gas components, sometimes with strikingly non-solar abundance patterns. Understanding the nature and distribution of this gas may eventually help us understand the origin of volatiles on the Earth, the carbon depletion of the asteroids, and even the origin of life. I'll describe what we know about these systems observationally, some of the leading hypotheses about the sources and sinks of the gas, and how these new astronomical discoveries may bear on solar-system science.

  6. Intrauterine device infection causing concomitant streptococcal toxic shock syndrome and pelvic abscess with Actinomyces odontolyticus bacteraemia.

    PubMed

    Wu, Carolyn M Yu; Noska, Amanda

    2016-03-10

    Intrauterine devices (IUDs) are rarely associated with serious infections. We report an unusual concomitant infection of group A Streptococcus (GAS) causing toxic shock syndrome and pelvic abscess with Actinomyces odontolyticus associated with an IUD in a healthy 50-year-old patient. The IUD was subsequently removed and the patient recovered on the appropriate antibiotics. This case highlights the importance of clinicians' high index of suspicion of an IUD infection and prompt removal of the infected foreign body to obtain source control. 2016 BMJ Publishing Group Ltd.

  7. Evaluation of blood metabolites reflects presence or absence of liver abscesses in beef cattle

    PubMed Central

    Macdonald, Alaina G C; Bourgon, Stéphanie L; Palme, Rupert; Miller, Stephen P; Montanholi, Yuri R

    2017-01-01

    Liver abscesses constitute a prominent concern regarding animal health and profitability of the beef industry. Our objective was to evaluate potential biliary and blood indicators of liver abscesses. Twenty-nine beef bulls (initially averaging 356±70.5 kg and 253±30 days of age) were fed a high-concentrate diet during a performance test of 112 days, during which blood was collected at nine time points spaced 0.5–13 days apart within 56 days before slaughter. At the abattoir, blood and bile were collected and livers were inspected for liver abscesses. Results indicated that liver abscesses are associated with elevated levels of plasma cortisol and aspartate aminotransferase, and decreased levels of albumin, cholesterol and testosterone over the period before slaughter. Based on the blood samples collected during exsanguination, the presence of liver abscesses was associated with lower concentrations of thyroxine, albumin, cholesterol and alkaline phosphatase, and is suggested to be associated with lower blood carbon dioxide (P=0.08) and lower biliary cortisol metabolites (P=0.07). Albumin and cholesterol are established indicators of hepatic function and are consistently related to the presence of liver abscesses. Identifying blood parameters that predict liver abscesses has practical implications for cattle husbandry and for ensuring food safety. PMID:28890789

  8. A 10-year retrospective review of pediatric lung abscesses from a single center

    PubMed Central

    Madhani, Kavi; McGrath, Eric; Guglani, Lokesh

    2016-01-01

    INTRODUCTION: Pediatric lung abscesses can be primary or secondary, and there is limited data regarding response to treatments and patient outcomes. OBJECTIVES: To assess the clinical and microbiologic profile of pediatric patients with lung abscess and assess the differences in outcomes for patients treated with medical therapy or medical plus surgical therapy. METHODS: A retrospective review of all pediatric patients ≤ 18 years of age that were treated as an inpatient for lung abscess between the dates of August 2004 and August 2014 was conducted. Patients were divided into two subgroups based on the need for surgical intervention. RESULTS: A total of 39 patients with lung abscess (30 treated with medical therapy alone, 9 also required surgical interventions) were included. Fever, cough, and emesis were the most common presenting symptoms, and most of the patients had underlying respiratory (31%) or neurologic disorders (15%). Staphylococcus aureus was the most common organism in those that had culture results available, and ceftriaxone with clindamycin was the most common combination of antibiotics used for treatment. Comparison of medical and surgical subgroups identified the duration of fever and abscess size as risk factors for surgical intervention. CONCLUSIONS: Pediatric lung abscesses can be managed with medical therapy alone in most cases. Presence of prolonged duration of fever and larger abscess size may be predictive of the need for surgical intervention. Good clinical response to prolonged therapy with ceftriaxone and clindamycin was noted. PMID:27512508

  9. A 14-year-old girl with tuberculous otitis media and brain abscess

    PubMed Central

    Oberdorfer, Peninnah; Kongthavonsakul, Kritsana; Intachumpoo, Jintana; Odell, Shaun

    2012-01-01

    Tuberculosis is a rare cause of chronic suppurative otitis media and mastoiditis. Intracranial complications are rare. The authors report a case of a 14-year-old girl with chronic otitis media of her right ear for 2 years. Her presentation was as follows: 10 days before admission she had a high fever, headache, alteration of consciousness and a generalised seizure. CT scanning of her brain showed right otomastoiditis with early brain abscess of the right cerebellum. She underwent right radical mastoidectomy and aspiration of the cerebellar abscess. The pus from the mastoid and cerebellar abscess was stained positive for acid-fast bacilli (AFB). The pus culture grew Mycobacterium tuberculosis (MTB). Her discharge diagnosis was tuberculous mastoiditis (TM) with cerebellar abscess. Long-term treatment plans included antituberculous drugs for 1 year. PMID:22828175

  10. Chondroblastic osteosarcoma mimicking periapical abscess

    PubMed Central

    YAMAMOTO-SILVA, Fernanda Paula; SILVA, Brunno Santos de Freitas; BATISTA, Aline Carvalho; de MENDONÇA, Elismauro Francisco; PINTO-JÚNIOR, Décio dos Santos; ESTRELA, Carlos

    2017-01-01

    Abstract Lesions of non-endodontic origin may mimic periapical abscess. Osteosarcoma is a rare malignant lesion. Case report The present report describes a case of chondroblastic osteosarcoma in the periapical region of teeth #29, #30, and #31 of an 18-year-old male. Clinical history showed self-reported discomfort in the right posterior gingiva for over a month. Physical examination showed a small expansion and redness of the right mandibular buccal and lingual cortical plates, but no signs of pain or inflammation were observed. All the teeth responded positively to pulp sensibility. Periapical and panoramic radiographs showed slight periapical radiolucency in the roots of teeth #29 and #30, clear periodontal ligament space widening, and evident loss of lamina dura. Incisional biopsy was performed, and based on microscopic findings the diagnosis of chondroblastic osteosarcoma was confirmed. Conclusions Non-endodontic diseases associated with tooth root apex, such as chondroblastic osteosarcoma, should be included in differential diagnosis of jaw lesions that resemble periapical abscess. PMID:28877285

  11. Case report: perinephric-splenic fistula--a complication of percutaneous perinephric abscess drainage.

    PubMed

    Stewart, I E; Borland, C

    1994-09-01

    A case of acute perinephric abscess due to chronic parenchymal disease and calculi is presented. During percutaneous drainage a reno-splenic vein communication developed acutely. The aetiology and treatment complications of perinephric abscesses are reviewed.

  12. Biliary diseases as main causes of pyogenic liver abscess caused by extended-spectrum beta-lactamase-producing Enterobacteriaceae.

    PubMed

    Shi, Shao-Hua; Feng, Xiao-Ning; Lai, Ming-Chun; Kong, Hai-Shen; Zheng, Shu-Sen

    2017-05-01

    Little is known about aetiology and morbidity and clinical characteristics of pyogenic liver abscess caused by extended-spectrum beta-lactamase-producing Enterobacteriaceae. An analysis between pyogenic liver abscess patients caused by extended-spectrum beta-lactamase-producing Enterobacteriaceae isolates and those caused by non-extended-spectrum beta-lactamase-producing Enterobacteriaceae was performed. Among 817 pyogenic liver abscess patients, there were 176 patients (21.5%) with pyogenic liver abscess of biliary origin, and 67 pyogenic liver abscess patients (8.2%) caused by extended-spectrum beta-lactamase-producing Enterobacteriaceae isolates (mainly Escherichia coli and Klebsiella pneumoniae). Of 176 pyogenic liver abscess patients related to biliary disorders, there were 48 pyogenic liver abscess patients (27.3%) caused by extended-spectrum beta-lactamase-producing Enterobacteriaceae. Within 67 pyogenic liver abscess patients caused by Enterobacteriaceae expressing extended-spectrum beta-lactamases, the occurrences of 48 pyogenic liver abscess patients (71.6%) were associated with biliary disorders. When compared with pyogenic liver abscess patients caused by non-extended-spectrum beta-lactamase-producing Enterobacteriaceae, there were significantly greater incidences of polymicrobial infections, bacteremia, pulmonary infection, recurrence and death in pyogenic liver abscess patients caused by extended-spectrum beta-lactamase-producing Enterobacteriaceae. Carbapenems remain mainstay drugs against extended-spectrum beta-lactamase-producing E. coli and K. pneumoniae. Independent risk factors for occurrence of pyogenic liver abscess caused by extended-spectrum beta-lactamase-producing Enterobacteriaceae were biliary disorders including extra- and intrahepatic cholangiolithiasis and an abnormal bilioenteric communication between bile and gut, a treatment history of malignancy such as operation and chemotherapy, pulmonary infection, and diabetes mellitus

  13. Actinomyces naeslundii and Eikenella corrodens as rare causes of liver abscesses.

    PubMed

    Jaqua, Nathan Thomas; Smith, Adam J; Shin, Terry T; Jahanmir, Jay

    2013-07-17

    A 48-year-old man with an unremarkable medical history was admitted with vague conditions of fever, chills, myalgias and malaise. Physical examination was remarkable for only scleral icterus. Laboratory evaluation revealed elevated aminotransferases, alkaline phosphatase and bilirubin. Imaging demonstrated two masses in the right lobe of his liver, which were ultimately drained and cultures demonstrated Actinomyces and Eikenella. He continued to have fever on broad-spectrum antibiotics until catheter drainage of the abscesses was performed. He was eventually discharged in improved condition on amoxicillin-clavulanate. His aminotransferases, alkaline phosphatase and bilirubin continued to improve and he remained afebrile and asymptomatic. A repeat CT 2 months after discharge demonstrated resolution of the abscesses. Actinomyces and Eikenella are rare causes of liver abscesses and treatment requires drainage and an extended course of antibiotics. The polymicrobial character typical of liver abscesses makes antibiotic therapy challenging when cultures reveal rare organisms such as Actinomyces and Eikenella.

  14. Recurrent neck abscess due to a bronchogenic cyst in an adult.

    PubMed

    Hazenberg, A J C; Pullmann, L M; Henke, R-P; Hoppe, F

    2010-12-01

    Neck abscesses can originate from congenital cervical cysts. Cervical cysts of bronchogenic origin are rare and often asymptomatic. Common symptoms of bronchogenic cysts are stridor, dyspnoea and dysphagia. The reported patient represents the second published case of a bronchogenic cyst causing a neck abscess in an adult. We report a case of a cervical bronchogenic cyst presenting as a recurrent supraclavicular abscess in a middle-aged woman. During extirpation, a fistula was demonstrated to the right upper lobe of the lung, suspected because the cyst inflated synchronously with respiration. The symptoms of bronchogenic cysts are due to the effects of compression or fistulas. In the majority of these cysts, a thorough investigation involving history, examination and radiological imaging does not clearly demonstrate a fistula. Therefore, extirpation is both diagnostic and therapeutic. A bronchogenic cyst is a very rare cause of a recurrent deep neck abscess. Total extirpation is the treatment of choice.

  15. Medical Versus Interventional Treatment of Intra-Abdominal Abscess in Patients With Crohn Disease.

    PubMed

    Graham, Emily; Rao, Krishna; Cinti, Sandro

    2017-01-01

    Few studies exist to guide the treatment approach to intra-abdominal abscesses in Crohn disease, which can include antimicrobials alone or in conjunction with percutaneous drainage or surgery. The primary aim of this study is to review outcomes from different treatment approaches to intra-abdominal abscess in Crohn disease. Medical records were reviewed for patients admitted to the University of Michigan health care system with Crohn disease and intra-abdominal abscess over a 4-year period. Outcomes were compared among medical and interventional approaches. The χ 2 test was used to test for statistical significance. Of the 33 patients included, 13 were in the medical group and 20 were in the interventional group. Abscess recurrence/nonresolution occurred in 31% of patients in the medical group and 25% of patients in the interventional group ( P = .7). In this study, there was no significant difference in outcome between medical and interventional therapy for intra-abdominal abscess in Crohn disease.

  16. [A case of multiple liver abscesses associated with Streptococcus salivarius in a patient with chronic periodontitis].

    PubMed

    Kamachi, Saori; Otsuka, Taiga; Tsuji, Chika; Nakashita, Shunya; Ide, Yasushi; Mizuta, Toshihiko

    2014-08-01

    Streptococcus salivarius is an oral commensal bacterium that rarely causes disease in humans. Here, we report a case of liver abscess associated with S. salivarius in a 41-year-old woman who presented with continuous abdominal discomfort, fatigue, and fever. She was diagnosed with multiple liver abscesses; she underwent percutaneous transhepatic abscess drainage. Thereafter, S. salivarius was isolated in all bacterial cultures of the drained abscesses, and it was sensitive to penicillins. She made a good recovery after treatment. In the absence of an infective source other than chronic periodontitis, the cause of liver abscesses was attributed to oral S. salivarius. S. salivarius is a normal oral commensal, and oral commensals must be considered if the infective origin of liver abscess cannot be determined.

  17. Surgical drainage and post operative lavage of large abdominal abscesses in six mature horses.

    PubMed

    Mair, T S; Sherlock, C E

    2011-08-01

    Six mature horses with large abdominal abscesses (defined as an abscess >15-20 cm in at least one dimension) were treated by surgical drainage and post operative lavage. The abscess was associated with previous intestinal surgery in one horse, and with Streptococcus equi spp. equi infection in the other 5. A Foley catheter was used to drain and lavage the abscess in all cases. The abscess was accessed by a ventral midline laparotomy in 5 cases and by standing flank laparoscopy in one. Two horses were subjected to euthanasia within 7 days due to persistent or recurrent colic. The other 4 horses survived. Lavage of the abscess was continued for a median time of 19 days. Antibacterial therapy was continued until the plasma fibrinogen concentration was normal (median 47 days). Follow-up information was obtained at a median of 1.8 years. All 4 horses were alive at the time of follow-up; 2 horses had suffered one or more bouts of colic that had responded to medical treatment. © 2011 EVJ Ltd.

  18. Tuberculous brain abscess and subdural empyema in an immunocompetent child: Significance of AFB staining in aspirated pus

    PubMed Central

    Vijayakumar, B.; Sarin, K.; Mohan, Girija

    2012-01-01

    Tuberculous brain abscess and subdural empyema are extremely rare manifestations of central nervous system tuberculosis. Here, we report a case of an 11-year-old immunocompetent child who developed temporal lobe abscess and subdural empyema following chronic otitis media. A right temporal craniotomy was performed and the abscess was excised. The Ziehl Nielsen staining of the aspirated pus from the temporal lobe abscess yielded acid fast bacilli. Prompt administration of antituberculous treatment resulted in complete recovery of the child. Even though the subdural abscess was not drained, we presume that to be of tubercular aetiology. Ours is probably the first case of brain abscess and subdural empyema due to Mycobacterium tuberculosis reported in the same child. This case is being reported because of its rarity and to stress the importance of routine staining for tubercle bacilli in all cases of brain abscess, especially in endemic areas, as it is difficult to differentiate tuberculous from pyogenic abscess clinically as well as histopathologically. PMID:22566728

  19. Tuberculous brain abscess and subdural empyema in an immunocompetent child: Significance of AFB staining in aspirated pus.

    PubMed

    Vijayakumar, B; Sarin, K; Mohan, Girija

    2012-04-01

    Tuberculous brain abscess and subdural empyema are extremely rare manifestations of central nervous system tuberculosis. Here, we report a case of an 11-year-old immunocompetent child who developed temporal lobe abscess and subdural empyema following chronic otitis media. A right temporal craniotomy was performed and the abscess was excised. The Ziehl Nielsen staining of the aspirated pus from the temporal lobe abscess yielded acid fast bacilli. Prompt administration of antituberculous treatment resulted in complete recovery of the child. Even though the subdural abscess was not drained, we presume that to be of tubercular aetiology. Ours is probably the first case of brain abscess and subdural empyema due to Mycobacterium tuberculosis reported in the same child. This case is being reported because of its rarity and to stress the importance of routine staining for tubercle bacilli in all cases of brain abscess, especially in endemic areas, as it is difficult to differentiate tuberculous from pyogenic abscess clinically as well as histopathologically.

  20. An Hepatic Abscess in a Patient With Sickle Cell Anemia.

    PubMed

    Marolf, Marissa D; Chaudhary, Manu; Kaplan, Sheldon L

    2016-11-01

    We present a case of hepatic abscess in a transfusion-dependent 16-year-old patient with sickle cell disease. There have been 10 such cases in sickle cell disease patients reported, with the last report published greater than a decade ago. The diagnosis of hepatic abscess merits consideration in sickle cell disease patients presenting with fever without a source and/or abdominal pain.

  1. ABSCESSES OF THE BREAST—Recurring Lesions in the Areolar Area

    PubMed Central

    Kilgore, Alson R.; Fleming, Ruth

    1952-01-01

    Subareolar abscesses beginning either in infected skin glands or in breast ducts have an extraordinary tendency to recur and to be resistant to treatment. About three-fourths of 64 patients observed had from one to many recurrences of abscess after either spontaneous or surgical drainage, and many even after wide excision of scar in an interval of quiescence. The most successful of a number of methods of treatment used was wide removal of scar and underlying chronic abscess cavity combined with removal of the ampulla and mouth of a connecting duct. In a substantial number, after either drainage or unsuccessful excision, the process gradually subsided over a period of months or years. Cancer has not been observed in any of the 64 patients. PMID:12988056

  2. Lung abscess in a child secondary to Mycoplasma pneumoniae infection.

    PubMed

    Ruffini, E; De Petris, L; Candelotti, P; Tulli, M; Sabatini, M R; Luciani, L; Carlucci, A

    2014-01-01

    We present a case of a lung abscess in a child 6-year-old admitted with a history of right hemithorax pain lasting for 15 days and the onset of mild fever in the last two days. Etiological research showed positivity of IgM antibodies to Mycoplasma pneumoniae after seven days of admission. The child has been successfully treated with antibiotic therapy, without the use of macrolides, for a duration of 4 weeks. Our study suggests that the Mycoplasma pneumoniae infection may predispose to severe infections, such as lung abscess, caused by typical respiratory pathogens. The reported case of lung abscess is one of the few reported in the literature in the modern antibiotic era and is the first preceded by Mycoplasma pneumoniae infection.

  3. Retrosternal abscess after trigger point injections in a pregnant woman: a case report.

    PubMed

    Usman, Faisal; Bajwa, Abubakr; Shujaat, Adil; Cury, James

    2011-08-23

    Although retrosternal abscess is a well known complication of sternotomy and intravenous drug abuse, to date it has not been described as a consequence of trigger point injections. There are reported cases of serious complications as a result of this procedure including epidural abscess, necrotizing fasciitis, osteomyelitis and gas gangrene. A 37-year-old African-American woman, who was 20 weeks pregnant, presented to our emergency room with complaints of progressively worsening chest pain and shortness of breath over the course of the last two months. She was undergoing trigger point injections at multiple different sites including the sternoclavicular joint for chest pain and dystonia. Two years previously she had developed a left-sided pneumothorax as a result of this procedure, requiring chest tube placement and subsequent pleurodesis. Her vital signs in our emergency room were normal except for resting tachycardia, with a pulse of 100 beats per minute. A physical examination revealed swelling and tenderness of the sternal notch with tenderness to palpation over the left sternoclavicular joint. Laboratory data was significant for a white blood count of 13.3 × 109/L with 82% granulocytes. A chest radiograph revealed left basilar scarring with blunting of the left costophrenic angle. A computed tomography angiogram showed a 4.7 cm abscess in the retrosternal region behind the manubrium with associated sclerosis and cortical irregularity of the manubrium and left clavicle. Trigger point injection is generally considered very safe. However, there are reported cases of serious complications as a result of this procedure. A computed tomography scan of the chest should strongly be considered in the evaluation of chest pain and shortness of breath of unclear etiology in patients with even a remote history of trigger point injections.

  4. Clinical characteristics of lung abscess in children: 15-year experience at two university hospitals

    PubMed Central

    Choi, Mi Suk; Chun, Ji Hye; Lee, Kyung Suk; Rha, Yeong Ho

    2015-01-01

    Purpose Information on the clinical features of lung abscess, which is uncommon in children, at hospitalizationis helpful to anticipate the disease course and management. There is no report concerning lung abscess in Korean children. We aimed to identify the clinical characteristics of pediatric lung abscess and compare the difference between primary and secondary abscess groups. Methods The medical records of 11 lung abscess patients (7 males and 4 females) from March 1998 to August 2011 at two university hospitals were retrospectively reviewed. The clinical characteristics, symptoms, underlying disease, laboratory and radiologic findings, microbiological results, and treatments were examined. Results Six patients had underlying structural-related problems (e.g., skeletal anomalies). No immunologic or hematologic problem was recorded. The mean ages of the primary and secondary groups were 2.4 and 5.3 years, respectively, but the difference was not statistically significant. The mean length of hospital stay was similar in both groups (22.8 days vs. 21.4 days). Immunologic studies were performed in 3 patients; the results were within the normal range. Most patients had prominent leukocytosis. Seven and 4 patients had right and left lung abscess, respectively. Staphylococcus aureus, Streptococcus pneumoniae, and antimycoplasma antibodies were detected in both groups. Two patients with primary lung abscess were administered antibiotics in the absence of other procedures, while 8 underwent interventional procedures, including 5 with secondary abscess. Conclusion The most common symptoms were fever and cough. All patients in the primary group were younger than 3 years. Structural problems were dominant. Most patients required interventional procedures and antibiotics. PMID:26770223

  5. Clinical characteristics of lung abscess in children: 15-year experience at two university hospitals.

    PubMed

    Choi, Mi Suk; Chun, Ji Hye; Lee, Kyung Suk; Rha, Yeong Ho; Choi, Sun Hee

    2015-12-01

    Information on the clinical features of lung abscess, which is uncommon in children, at hospitalizationis helpful to anticipate the disease course and management. There is no report concerning lung abscess in Korean children. We aimed to identify the clinical characteristics of pediatric lung abscess and compare the difference between primary and secondary abscess groups. The medical records of 11 lung abscess patients (7 males and 4 females) from March 1998 to August 2011 at two university hospitals were retrospectively reviewed. The clinical characteristics, symptoms, underlying disease, laboratory and radiologic findings, microbiological results, and treatments were examined. Six patients had underlying structural-related problems (e.g., skeletal anomalies). No immunologic or hematologic problem was recorded. The mean ages of the primary and secondary groups were 2.4 and 5.3 years, respectively, but the difference was not statistically significant. The mean length of hospital stay was similar in both groups (22.8 days vs. 21.4 days). Immunologic studies were performed in 3 patients; the results were within the normal range. Most patients had prominent leukocytosis. Seven and 4 patients had right and left lung abscess, respectively. Staphylococcus aureus, Streptococcus pneumoniae, and antimycoplasma antibodies were detected in both groups. Two patients with primary lung abscess were administered antibiotics in the absence of other procedures, while 8 underwent interventional procedures, including 5 with secondary abscess. The most common symptoms were fever and cough. All patients in the primary group were younger than 3 years. Structural problems were dominant. Most patients required interventional procedures and antibiotics.

  6. Outcome of percutaneous continuous drainage of psoas abscess: A clinically guided technique.

    PubMed

    Dave, Bharat R; Kurupati, Ranganatha Babu; Shah, Dipak; Degulamadi, Devanand; Borgohain, Nitu; Krishnan, Ajay

    2014-01-01

    Percutaneous aspiration of abscesses under ultrasonography (USG) and computer tomography (CT) scan has been well described. With recurrence rate reported as high as 66%. The open drainage and percutaneous continuous drainage (PCD) has reduced the recurrence rate. The disadvantage of PCD under CT is radiation hazard and problems of asepsis. Hence a technique of clinically guided percutaneous continuous drainage of the psoas abscess without real-time imaging overcomes these problems. We describe clinically guided PCD of psoas abscess and its outcome. Twenty-nine patients with dorsolumbar spondylodiscitis without gross neural deficit with psoas abscess of size >5 cm were selected for PCD. It was done as a day care procedure under local anesthesia. Sequentially, aspiration followed by guide pin-guided trocar and catheter insertion was done without image guidance. Culture sensitivity was done and chemotherapy initiated and catheter kept till the drainage was <10 ml for 48 hours. Outcome assessment was done with relief of pain, successful abscess drainage and ODI (Oswestry Disability Index) score at 2 years. PCD was successful in all cases. Back and radicular pain improved in all cases. Average procedure time was 24.30 minutes, drain output was 234.40 ml, and the drainage duration was 7.90 days. One patient required surgical stabilisation due to progression of the spondylodiscitis resulting in instability inspite of successful drainage of abscess. Problems with the procedure were noticed in six patients. Multiple attempts (n = 2), persistent discharge (n = 1) for 2 weeks, blocked catheter (n = 2) and catheter pull out (n = 1) occurred with no effect on the outcome. The average ODI score improved from 62.47 to 5.51 at 2 years. Clinically guided PCD is an efficient, safe and easy procedure in drainage of psoas abscess.

  7. Methods for analysis of the occurrence of abscess in patients with pancreatitis.

    PubMed

    Roca-Antonio, J; Escudero, L E; Gener, J; Oller, B; Rodríguez, N; Muñoz, A

    1997-01-01

    Standard survival analysis methods are useful for data involving censored cases when cures do not generally occur. If the object is to study, for instance, the development of a complication in the progress of an infectious disease, some people may be cured before complications develop. In this article, we provide methods for the analysis of data when cures do occur. An example is a study of prognostic factors for pancreatic abscess in patients with pancreatitis, some of whom leave the risk set because the pancreatitis clears. We present methods for estimating the survival curves and comparing hazard function for two objectives: (1) the occurrence of an abscess, irrespective of whether the patients are cured or not, and (2) the occurrence of an abscess for patients who, at that stage, have not been cured. We illustrate the applications of the methods using a sample of 50 patients with severe pancreatitis. To study the occurrence of an abscess, regardless of whether the patients are cured or not, we show that the appropriate strategy is to assign to the cured patients an infinite time to the appearance of an abscess. If the cured were considered censored at the moment the pancreatitis cleared, this would result in an overestimation of the hazard of presenting an abscess. On the other hand, if the objective is to compare the occurrence of abscess according to an exposure for patients who have not been cured, one needs to censor the cured patients at the time they are cured. For the analysis of survival data in the context of infectious diseases when cure is possible, it is important to use a censoring strategy that is pertinent to the specific aims of the study. Considering cures as censored at the time of cure is not always appropriate.

  8. Fluorescein sodium-guided surgery of a brain abscess: A case report

    PubMed Central

    Höhne, Julius; Brawanski, Alexander; Schebesch, Karl-Michael

    2016-01-01

    Background: Up to now, the feasibility and benefit of using fluorescein sodium under a dedicated surgical microscope filter (YE560, YELLOW 560 nm filter, Carl Zeiss Meditec, Germany) has never been clinically evaluated in infectious disorders of the brain. Case Description: Here, we report the case of a male patient with a brain abscess in the right parietal lobe that was removed under fluorescence-guidance (intravenous administration of fluorescein sodium 10%, 5 mg/kg bodyweight). The abscess capsule showed intensive yellow fluorescent staining, while − under white light − the cortex appeared normal. Conclusion: This technique may improve the identification and surgical removal of brain abscesses. PMID:28031990

  9. Severe Pain Due to Paraspinal Abscess Formation in Two Patients with Squamous-Cell Carcinoma of the Head and Neck after Multimodal Treatment Including Cetuximab.

    PubMed

    Gerlach, Christina; Pretzell, Ina; Lieberknecht, Elisabeth; Mattyasovszky, Stefan; Weber, Martin

    2018-01-01

    Patients with squamous-cell carcinoma of the head and neck (SCCHN) on palliative therapy usually have a bad prognosis and suffer from various symptoms. With increasing use of targeted agents in cancer patients at the end of life, the correct assignment of therapy-related symptoms becomes increasingly difficult as cancer-related symptoms usually increase as well. We report on 2 cases of patients with SCCHN who received multimodal treatment including palliative therapy with cetuximab. Both patients developed severe thoracic and cervicothoracic pain following treatment. In both cases, extensive paraspinal abscess formation proved to be the underlying cause. One patient was treated conservatively; the other one had to undergo surgical intervention. Awareness of multifaceted therapy-related complications is mandatory when patients receive multimodal treatment including targeted therapies. Unexplained pain syndromes in this context should raise suspicions concerning possible infectious complications and should lead to early use of magnetic resonance imaging. © 2018 S. Karger GmbH, Freiburg.

  10. Upper Cervical Epidural Abscess in Clinical Practice: Diagnosis and Management

    PubMed Central

    Al-Hourani, Khalid; Al-Aref, Rami; Mesfin, Addisu

    2015-01-01

    Study Design Narrative review. Objective Upper cervical epidural abscess (UCEA) is a rare surgical emergency. Despite increasing incidence, uncertainty remains as to how it should initially be managed. Risk factors for UCEA include immunocompromised hosts, diabetes mellitus, and intravenous drug use. Our objective is to provide a comprehensive overview of the literature including the history, clinical manifestations, diagnosis, and management of UCEA. Methods Using PubMed, studies published prior to 2015 were analyzed. We used the keywords “Upper cervical epidural abscess,” “C1 osteomyelitis,” “C2 osteomyelitis,” “C1 epidural abscess,” “C2 epidural abscess.” We excluded cases with tuberculosis. Results The review addresses epidemiology, etiology, imaging, microbiology, and diagnosis of this condition. We also address the nonoperative and operative management options and the relative indications for each as reviewed in the literature. Conclusion A high index of suspicion is required to diagnose this rare condition with magnetic resonance imaging being the imaging modality of choice. There has been a shift toward surgical management of this condition in recent times, with favorable outcomes. PMID:27190742

  11. Transurethral drainage for prostatic abscess in a patient with metastatic testicular cancer undergoing systemic chemotherapy.

    PubMed

    Terakawa, Tomoaki; Miyake, Hideaki; Nakano, Yuzo; Tanaka, Kazushi; Takenaka, Atsushi; Hara, Isao; Fujisawa, Masato

    2007-10-01

    We report a case of prostatic abscess in a 22-year-old man with metastatic testicular cancer being treated by BEP (bleomycin, etoposide and cisplatin) chemotherapy. This abscess was successfully treated by surgical drainage with transurethral resection of the prostate (TURP) under the guidance of transrectal ultrasound, allowing the patient to continue be receiving BEP without significant interruption. Drainage TURP is suggested to be a useful strategy for prostate abscess, when prompt control of symptoms caused by prostatic abscess is required.

  12. A 14-year-old girl with tuberculous otitis media and brain abscess.

    PubMed

    Oberdorfer, Peninnah; Kongthavonsakul, Kritsana; Intachumpoo, Jintana; Odell, Shaun

    2012-07-24

    Tuberculosis is a rare cause of chronic suppurative otitis media and mastoiditis. Intracranial complications are rare. The authors report a case of a 14-year-old girl with chronic otitis media of her right ear for 2 years. Her presentation was as follows: 10 days before admission she had a high fever, headache, alteration of consciousness and a generalised seizure. CT scanning of her brain showed right otomastoiditis with early brain abscess of the right cerebellum. She underwent right radical mastoidectomy and aspiration of the cerebellar abscess. The pus from the mastoid and cerebellar abscess was stained positive for acid-fast bacilli (AFB). The pus culture grew Mycobacterium tuberculosis (MTB). Her discharge diagnosis was tuberculous mastoiditis (TM) with cerebellar abscess. Long-term treatment plans included antituberculous drugs for 1 year.

  13. The Importance of Ammonia for Winter Haze Formation in Two Oil and Gas Production Regions

    NASA Astrophysics Data System (ADS)

    Collett, J. L., Jr.; Li, Y.; Evanoski-Cole, A. R.; Sullivan, A.; Day, D.; Archuleta, C.; Tigges, M.; Sewell, H. J.; Prenni, A. J.; Schichtel, B. A.

    2014-12-01

    Fine particle ammonium nitrate formation results from the atmospheric reaction of gaseous ammonia and nitric acid. This reaction is most important in winter when low temperatures thermodynamically enhance particle formation. Nitrogen oxides emissions from oil and gas operations partially react in the atmosphere to form nitric acid. The availability of atmospheric ammonia plays an important role in determining whether the nitric acid formed results in wintertime ammonium nitrate formation. Here we contrast situations in two important U.S. oil and gas production regions. Measurements of ammonia, nitric acid, ammonium nitrate and other species were made from 2007 to present near Boulder, Wyoming and in winters 2013 and 2014 in western North Dakota. The Boulder, Wyoming site is close to the large Jonah and Pinedale Anticline gas fields. Field sites at the north unit of Theodore Roosevelt National Park and Fort Union are situated in the large Bakken Formation oil and gas production region. Wintertime formation of nitric acid and ammonium nitrate, together comprising nitrogen in the +5 oxidation state (N(V)), was observed in both locations. Concentrations of N(V), however, are generally much lower at Boulder, WY than in the Bakken. An even bigger difference is seen in fine particle ammonium nitrate concentrations; limited regional ammonia is available in western Wyoming to react with nitric acid, leaving a portion of the nitric acid trapped in the gas phase. Higher concentrations of ammonia are observed in the Bakken where they support formation of much higher concentrations of ammonium nitrate. Comparison of these two regions clearly indicates the importance of understanding both local NOx emissions and regional concentrations of ammonia in predicting source impacts on formation of fine particles and haze.

  14. The multistep road to ventilator-associated lung abscess: A retrospective study of S.aureus ventilator-associated pneumonia.

    PubMed

    Mounier, Roman; Lobo, David; Voulgaropoulos, Julia; Martin, Mathieu; Aït-Mamar, Bouziane; Bitot, Valérie; Jost, Paul-Henri; Birnbaum, Ron; Nebbad, Biba; Cook, Fabrice; Dhonneur, Gilles

    2017-01-01

    We observed some cases of lung abscess (LA) in ICU patients suffering S.aureus ventilator-associated pneumonia (S.aureus-VAP). We aimed to assess which of the host and/or bacteria-related features are associated with LA. We conducted a retrospective study from January 2009 to July 2013 in a trauma surgical ICU within a teaching hospital. All adult patients presenting with S.aureus-VAP were included. We compared two groups of patients according to the formation or not of LA concomitantly to S.aureus-VAP. Seventy-nine S.aureus-VAP patients, predominantly males (85%) of rather young age (mean [SD]: 35yr [21-64]) with severe trauma (initial Simplified Acute Score II = 42 [32-52]) related-ICU admission, were included. Among them, 10 (14%) developed LA. Patient's characteristics significantly associated with LA development were: a younger age (p = 0.003), road traffic accidents admission (p = 0.017), head injury (p = 0.002), lower Glasgow Coma Scale (p = 0.009), blunt chest trauma (p = 0.01) pneumothorax (p = 0.01) and lung contusions (p = 0.002). No microbiological factors were significantly associated with LA formation. Abscesses were mostly bilateral, ≥5 cm of diameter and with a posterior location. Our results do not favor a specific virulence of S.aureus, but rather highlight the role of multiple insults to the lung, promoting LA formation. Despite a similar severity score, patients with LA had more serious trauma, combining severe both chest and head insults.

  15. Gas, Stars, and Star Formation in Alfalfa Dwarf Galaxies

    NASA Technical Reports Server (NTRS)

    Huang, Shan; Haynes, Martha P.; Giovanelli, Riccardo; Brinchmann, Jarle; Stierwalt, Sabrina; Neff, Susan G.

    2012-01-01

    We examine the global properties of the stellar and Hi components of 229 low H i mass dwarf galaxies extracted from the ALFALFA survey, including a complete sample of 176 galaxies with H i masses <10(sup 7.7) solar mass and Hi line widths <80 kilometers per second. Sloan Digital Sky Survey (SDSS) data are combined with photometric properties derived from Galaxy Evolution Explorer to derive stellar masses (M*) and star formation rates (SFRs) by fitting their UV-optical spectral energy distributions (SEDs). In optical images, many of the ALFALFA dwarfs are faint and of low surface brightness; only 56% of those within the SDSS footprint have a counterpart in the SDSS spectroscopic survey. A large fraction of the dwarfs have high specific star formation rates (SSFRs), and estimates of their SFRs and M* obtained by SED fitting are systematically smaller than ones derived via standard formulae assuming a constant SFR. The increased dispersion of the SSFR distribution at M* approximately less than10(exp 8)M(sub 0) is driven by a set of dwarf galaxies that have low gas fractions and SSFRs; some of these are dE/dSphs in the Virgo Cluster. The imposition of an upper Hi mass limit yields the selection of a sample with lower gas fractions for their M* than found for the overall ALFALFA population. Many of the ALFALFA dwarfs, particularly the Virgo members, have H i depletion timescales shorter than a Hubble time. An examination of the dwarf galaxies within the full ALFALFA population in the context of global star formation (SF) laws is consistent with the general assumptions that gas-rich galaxies have lower SF efficiencies than do optically selected populations and that Hi disks are more extended than stellar ones.

  16. GAS, STARS, AND STAR FORMATION IN ALFALFA DWARF GALAXIES

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Huang Shan; Haynes, Martha P.; Giovanelli, Riccardo

    2012-06-15

    We examine the global properties of the stellar and H I components of 229 low H I mass dwarf galaxies extracted from the ALFALFA survey, including a complete sample of 176 galaxies with H I masses <10{sup 7.7} M{sub Sun} and H I line widths <80 km s{sup -1}. Sloan Digital Sky Survey (SDSS) data are combined with photometric properties derived from Galaxy Evolution Explorer to derive stellar masses (M{sub *}) and star formation rates (SFRs) by fitting their UV-optical spectral energy distributions (SEDs). In optical images, many of the ALFALFA dwarfs are faint and of low surface brightness; onlymore » 56% of those within the SDSS footprint have a counterpart in the SDSS spectroscopic survey. A large fraction of the dwarfs have high specific star formation rates (SSFRs), and estimates of their SFRs and M{sub *} obtained by SED fitting are systematically smaller than ones derived via standard formulae assuming a constant SFR. The increased dispersion of the SSFR distribution at M{sub *} {approx}< 10{sup 8} M{sub Sun} is driven by a set of dwarf galaxies that have low gas fractions and SSFRs; some of these are dE/dSphs in the Virgo Cluster. The imposition of an upper H I mass limit yields the selection of a sample with lower gas fractions for their M{sub *} than found for the overall ALFALFA population. Many of the ALFALFA dwarfs, particularly the Virgo members, have H I depletion timescales shorter than a Hubble time. An examination of the dwarf galaxies within the full ALFALFA population in the context of global star formation (SF) laws is consistent with the general assumptions that gas-rich galaxies have lower SF efficiencies than do optically selected populations and that H I disks are more extended than stellar ones.« less

  17. Aspiration of breast abscess through wide bore 14-gauge intravenous cannula.

    PubMed

    Afridi, Shahida Parveen; Alam, Shams Nadeem; Ainuddin, Saman

    2014-10-01

    To aspirate breast abscess through a wide bore (14-gauge) intravenous (I/V) cannula and determine its efficacy in terms of the number of recurrences and number of aspirations. Case series. Dow University of Health Sciences and Civil Hospital and Bantva Hospital, Karachi, Pakistan, from January 2009 to December 2011. Patients with breast abscesses confirmed on ultrasound without skin ulceration were selected. The soft area of breast abscess with positive fluctuation was marked and fixed with index finger and thumb. A 14-gauge cannula was inserted. Pus was aspirated through a 50 cc syringe, repeated till no aspirate could be obtained. All patients were followed weekly for 4 weeks, clinically for size of lump, local tenderness and temperature, while complete resolution was confirmed on ultrasound, as resolution of the lesion. A total of 55 patients were included in this study. Mean age was 29 ± 5.58 years while ranging from 20 - 40 years. Complete resolution of abscess was seen in 31 (56.4%) cases by single aspiration. Second aspiration was required in 24 (43.6%) patients and third aspiration in single setting was required in one case only. Recurrence after the second aspiration occurred in 08 (14.5%). Incision drainage was required in 7 (12.7%) patients. Percutaneous aspiration of breast abscess through a wide bore (14-gauge) I/V cannula is a simple alternative to incision and drainage.

  18. Dentoalveolar abscess among children attending a dental clinic in Nigeria.

    PubMed

    Azodo, C C; Chukwumah, N M; Ezeja, E B

    2012-09-01

    To determine the incidence and causes of dentoalveolar abscess among children attending an outpatient dental clinic in Nigeria. This is a retrospective study of paediatric dental patients treated in University of Benin Teaching Hospital, Benin City from October 2010 to September 2011. The incidence of dentoalveolar abscess was 6.4% (53/824). However only 42 cases had their case notes retrieved for final research analysis. It occurred mostly in the lower right quadrant of the mouth. The affected children were majorly males and first or second child of monogamous family. A total 17 (40.5%) of the affected children were in the 6-11 years age group. This was the first dentist consultation among 35 (83.3%) of the children. The presenting complaint was toothache among two-thirds of the children. History of asthma, tonsillitis, peptic ulcer disease and previous surgery were medical history elicited from 6 (14.3) of the patients. The most implicated tooth was deciduous first molar. The causes of abscess include untreated dental caries 35 (83.3%), trauma 5 (11.9%), failed restoration 1 (2.4%) and periodontal diseases 1 (2.4%). Periapical radioluscency was predominant radiological finding among affected children. Tooth extraction was commonest treatment done. The incidence of dentoalveolar abscess among children was significant. The high frequency of untreated dental caries as the cause of dentoalveolar abscess indicates the need for school and community-based preventive strategies like encouraging infant oral health and preventive dentistry programs and early treatment intervention and dental health education.

  19. Melioidosis: A Rare Cause of Liver Abscess

    PubMed Central

    Teh, Catherine S. C.; Casupang, Ma. Amornetta J.

    2016-01-01

    Case Presentation. This is a case of a 44-year-old male, farmer, known to be diabetic, presenting with two-week history of vague abdominal pain associated with high grade fever. Abdominal CT scan showed localized liver abscess at segment 8 measuring 7.5 × 6.8 × 6.1 cm. Patient subsequently underwent laparoscopic ultrasound guided pigtail insertion for drainage of abscess. Culture studies showed moderate growth of Burkholderia pseudomallei in which the patient completed seven days of IV Meropenem. On follow-up after 12 weeks of oral Sulfamethoxazole/Trimethoprim, taken twice a day, the patient remained asymptomatic with no residual findings based on the abdominal ultrasound. Discussion. Diagnosis of melioidosis, a known “great masquerader,” relies heavily on culture studies. Consensus with regard to the management of liver abscess caused by Burkholderia pseudomallei has not yet been established due to the rarity of cases. Surgical intervention through either a percutaneous or open drainage has shown good outcomes compared to IV antibiotics alone. In Philippines, the possibility of underreporting is highly plausible. This write-up serves not only to report a rare presentation of melioidosis but also to add to the number of cases reported in the country, possibly indicative of disease emergence. PMID:27529039

  20. Melioidosis: A Rare Cause of Liver Abscess.

    PubMed

    Martin, Peter Franz M San; Teh, Catherine S C; Casupang, Ma Amornetta J

    2016-01-01

    Case Presentation. This is a case of a 44-year-old male, farmer, known to be diabetic, presenting with two-week history of vague abdominal pain associated with high grade fever. Abdominal CT scan showed localized liver abscess at segment 8 measuring 7.5 × 6.8 × 6.1 cm. Patient subsequently underwent laparoscopic ultrasound guided pigtail insertion for drainage of abscess. Culture studies showed moderate growth of Burkholderia pseudomallei in which the patient completed seven days of IV Meropenem. On follow-up after 12 weeks of oral Sulfamethoxazole/Trimethoprim, taken twice a day, the patient remained asymptomatic with no residual findings based on the abdominal ultrasound. Discussion. Diagnosis of melioidosis, a known "great masquerader," relies heavily on culture studies. Consensus with regard to the management of liver abscess caused by Burkholderia pseudomallei has not yet been established due to the rarity of cases. Surgical intervention through either a percutaneous or open drainage has shown good outcomes compared to IV antibiotics alone. In Philippines, the possibility of underreporting is highly plausible. This write-up serves not only to report a rare presentation of melioidosis but also to add to the number of cases reported in the country, possibly indicative of disease emergence.

  1. Dense gas and star formation in individual Giant Molecular Clouds in M31

    NASA Astrophysics Data System (ADS)

    Viaene, S.; Forbrich, J.; Fritz, J.

    2018-04-01

    Studies both of entire galaxies and of local Galactic star formation indicate a dependency of a molecular cloud's star formation rate (SFR) on its dense gas mass. In external galaxies, such measurements are derived from HCN(1-0) observations, usually encompassing many Giant Molecular Clouds (GMCs) at once. The Andromeda galaxy (M31) is a unique laboratory to study the relation of the SFR and HCN emission down to GMC scales at solar-like metallicities. In this work, we correlate our composite SFR determinations with archival HCN, HCO+, and CO observations, resulting in a sample of nine reasonably representative GMCs. We find that, at the scale of individual clouds, it is important to take into account both obscured and unobscured star formation to determine the SFR. When correlated against the dense-gas mass from HCN, we find that the SFR is low, in spite of these refinements. We nevertheless retrieve an SFR-dense-gas mass correlation, confirming that these SFR tracers are still meaningful on GMC scales. The correlation improves markedly when we consider the HCN/CO ratio instead of HCN by itself. This nominally indicates a dependency of the SFR on the dense-gas fraction, in contradiction to local studies. However, we hypothesize that this partly reflects the limited dynamic range in dense-gas mass, and partly that the ratio of single-pointing HCN and CO measurements may be less prone to systematics like sidelobes. In this case, the HCN/CO ratio would importantly be a better empirical measure of the dense-gas content itself.

  2. Kinetic modeling of secondary organic aerosol formation: effects of particle- and gas-phase reactions of semivolatile products

    NASA Astrophysics Data System (ADS)

    Chan, A. W. H.; Kroll, J. H.; Ng, N. L.; Seinfeld, J. H.

    2007-08-01

    The distinguishing mechanism of formation of secondary organic aerosol (SOA) is the partitioning of semivolatile hydrocarbon oxidation products between the gas and aerosol phases. While SOA formation is typically described in terms of partitioning only, the rate of formation and ultimate yield of SOA can also depend on the kinetics of both gas- and aerosol-phase processes. We present a general equilibrium/kinetic model of SOA formation that provides a framework for evaluating the extent to which the controlling mechanisms of SOA formation can be inferred from laboratory chamber data. With this model we examine the effect on SOA formation of gas-phase oxidation of first-generation products to either more or less volatile species, of particle-phase reaction (both first- and second-order kinetics), of the rate of parent hydrocarbon oxidation, and of the extent of reaction of the parent hydrocarbon. The effect of pre-existing organic aerosol mass on SOA yield, an issue of direct relevance to the translation of laboratory data to atmospheric applications, is examined. The importance of direct chemical measurements of gas- and particle-phase species is underscored in identifying SOA formation mechanisms.

  3. Kinetic modeling of Secondary Organic Aerosol formation: effects of particle- and gas-phase reactions of semivolatile products

    NASA Astrophysics Data System (ADS)

    Chan, A. W. H.; Kroll, J. H.; Ng, N. L.; Seinfeld, J. H.

    2007-05-01

    The distinguishing mechanism of formation of secondary organic aerosol (SOA) is the partitioning of semivolatile hydrocarbon oxidation products between the gas and aerosol phases. While SOA formation is typically described in terms of partitioning only, the rate of formation and ultimate yield of SOA can also depend on the kinetics of both gas- and aerosol-phase processes. We present a general equilibrium/kinetic model of SOA formation that provides a framework for evaluating the extent to which the controlling mechanisms of SOA formation can be inferred from laboratory chamber data. With this model we examine the effect on SOA formation of gas-phase oxidation of first-generation products to either more or less volatile species, of particle-phase reaction (both first- and second-order kinetics), of the rate of parent hydrocarbon oxidation, and of the extent of reaction of the parent hydrocarbon. The effect of pre-existing organic aerosol mass on SOA yield, an issue of direct relevance to the translation of laboratory data to atmospheric applications, is examined. The importance of direct chemical measurements of gas- and particle-phase species is underscored in identifying SOA formation mechanisms.

  4. [The odontogenic abscess. Aetiology, treatment and involvement in the orofacial region].

    PubMed

    Spijkervet, F K; Vissink, A; Raghoebar, G M

    2004-04-01

    Odontogenic infections are a common problem in daily practice. Occasionally, an odontogenic infection evolves an abscess. This article discusses the aetiology, the treatment and the involvement of odontogenic abscesses in the oro-facial region. Their occurrence, course and treatment are depending on the patient's immune response, and on microbial and environmental factors.

  5. Contribution of CT scan and CT-guided aspiration in the management of retropharyngeal abscess in children based on a series of 18 cases.

    PubMed

    Martin, C A; Gabrillargues, J; Louvrier, C; Saroul, N; Mom, T; Gilain, L

    2014-11-01

    This study was designed to analyse the contribution of CT scan to the management of retropharyngeal abscess in children and the place of CT-guided percutaneous aspiration as an alternative to surgical drainage. Retrospective study including 18 children with a mean age of 38 months [range: 5-67 months] presenting with retropharyngeal infection between 2006 and 2011. All cases were initially assessed by contrast-enhanced CT scan of the neck. Clinical, radiological treatment and bacteriological data were collected. Radiological results were correlated with surgical and percutaneous aspiration findings (presence or absence of an abscess). The initial CT scan detected 14 abscesses, 3 cases of non-suppurative lymphadenitis and one case of retropharyngeal oedema. One case of non-suppurative lymphadenitis progressed to abscess after failure of antibiotic therapy and was treated surgically. Surgical drainage revealed a purulent collection in 11 cases and no collection in 3 cases. Four CT-guided percutaneous aspirations were successfully performed. Three cases were treated by antibiotics alone (2 cases of lymphadenitis and 1 case of retropharyngeal oedema). Bacteriological examinations revealed the presence of Streptococcus pyogenes in 78.5% of cases. The positive predictive value of the initial CT scan was 78.8% in our series. Contrast-enhanced neck CT scan confirmed the diagnosis of retropharyngeal abscess and the indication for surgical drainage. It must be performed urgently, on admission. When it is decided to treat the patient with antibiotics alone, follow-up imaging should be performed in the absence of improvement 24 to 48 hours after starting antibiotics. CT-guided percutaneous aspiration is both a diagnostic modality confirming abscess formation of an inflammatory lesion of the retropharyngeal space as well as a therapeutic tool, sometimes avoiding the need for surgical drainage. Copyright © 2014 Elsevier Masson SAS. All rights reserved.

  6. Streptococcus oralis cerebral abscess following monkey bite in a 2-month-old infant.

    PubMed

    Thiagarajan, Srinivasan; Krishnamurthy, Sriram; Raghavan, Renitha; Mahadevan, Subramanian; Madhugiri, Venkatesh S; Sistla, Sujatha

    2016-05-01

    Although cerebral abscesses caused by animal bites have been reported, they are extremely rare in infants and have not been described following monkey bite. A 55-day-old male infant presented with a multi-loculated Streptococcus oralis cerebral abscess following a monkey bite on the scalp. There was a clinical response to antibiotic therapy and repeated surgical aspiration followed by a ventriculoperitoneal shunt. This is the first report of a patient with a brain abscess following a monkey bite.

  7. [Lung abscess and thoracic empyema: retrospective analysis in an internal medicine department].

    PubMed

    Monteiro, Rita; Alfaro, Tiago M; Correia, Lurdes; Simão, Adélia; Carvalho, Armando; Costa, J Nascimento

    2011-12-01

    Lung abscess is a collection of necrotic and suppurated tissue located at the pulmonary parenchyma. Empyema is defined as the presence of pus in the pleural space. To study the clinical and microbiological characteristics, treatment and prognosis of patients with lung abscess and/or empyema admitted to an Internal Medicine ward. A retrospective analysis of medical records was performed, including all patients admitted to an Internal Medicine ward for lung abscess or empyema, between 2000 and 2008. Thirty patients were included (22 males/ eight females), accounting for 0.18% of all patients admitted in this ward in the same period. Three patients had pulmonary abscess, 18 empyema, and nine both diseases. The average age was 68.5 years (31 to 90). The most frequent complaints were dyspnoea (90%), fever (73.3%), cough (66.7%), weight loss (60%) and chest pain (53.3%). The most frequent associated disorders were stroke associated disability (46.7%), heart failure (43.3%) and arterial hypertension (33.3%). Thoracentesis was performed in all patients with empyema. In one patient with lung abscess an anaerobic microorganism was identified. In patients with empyema, cultures were positive in 61.1% of cases, with a slight predominance of methicillin-resistant Staphylococcus aureus (27.3%) and Prevotella intermedia (18.2%). In patients with both abscess and empyema, cultures of the abscess were positive in 44.4% and of the pleural fluid in 33.3%, with no predominant microorganism. Empiric antimicrobial therapy was started in all patients and later adapted to the antibiotic sensitivity test results. Surgery was performed in three patients. Seven patients (23.3%) died during admission. The average age of the patients who died was 81.3 years and of those who survived was 64.5 years. Lung abscess and empyema are infrequent diseases in an Internal Medicine ward, affect mostly males and have unspecific clinical manifestations. The chest X-ray, computed tomography (CT) and

  8. A rare constellation of empyema, lung abscess, and mediastinal abscess as a complication of endobronchial ultrasound-guided transbronchial needle aspiration.

    PubMed

    Huang, Chun-Ta; Chen, Chung-Yu; Ho, Chao-Chi; Yu, Chong-Jen

    2011-07-01

    The introduction of endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) brought about significant advancement in the field of bronchoscopy. The major indications for EBUS-TBNA are lung cancer staging and diagnosis of mediastinal lymphadenopathy. This procedure is minimally invasive and cost saving, and no complications have been described in large-scale studies. In this report, we present a case of empyema, lung abscess, and mediastinal abscess that developed in a patient undergoing EBUS-TBNA; the patient subsequently recovered uneventfully after aggressive surgical debridement and antimicrobial therapy. Copyright © 2010 European Association for Cardio-Thoracic Surgery. Published by Elsevier B.V. All rights reserved.

  9. [Clinical analysis of diagnosis and treatment on retro-esophageal space abscess].

    PubMed

    Chen, Ze; Zhong, Zhaotang; Liang, Minzhi

    2014-12-01

    To explore the clinical manifestations and treatments of retro-esophageal space abscess. The clinical data of 27 cases with retro-esophageal space abscess were analyzed retrospectively. Twenty-one cases (77. 78%) were secondary to acute injury of esophageal meatus caused by foreign bodies. 2 cases (7. 41%)were secondary to old foreign body infection in retro-esophageal space, 3 cases (11. 11%) after secondary to pharyngeal abscess, and 1 case (3. 70%) was unknown to etiology. All patients were confirmed by sectional medicalimageology. Six cases(Conservation group, C group) were treated conservatively and 6 cases (Oropharyngeal incision group, OI group) were performed with oropharyngeal incision drainage. 15 cases(Extra-neck incision group, ENI group)were performed with extra-neck incision and vacuum sealing drainage. In C group, 6 cases were cured with conservative therapy and the average hospital stay was 15. 6 days. In OI group, 5 cases were healed with oropharyngeal drainage but aspiration pneumonia complicated with septic shock occurred in 2 cases, and 1 case dead from septic shock secondary to mediastinum and lung abscess. The average hospital stay was 18. 8 days. In ENI group, 15 patients were cured with extra-neck drainage without complication and the average hospital stay was 9. 5 days. The main causes of retro-esophageal space abscess are foreign body injury of upper esophagus and remnant of retro-esophageal space. Sectional medicalimageology can be of important value of diagnosis and treatment for displaying the retro-esophageal space abscess and other deep cervical fascia space sufficiently. Incision and vacuum sealing drainage via extra-neck is an effective therapy while oropharyngeal drainage is less effective and is not advocated as a primary treatment because of aspiration pneumonia complication . Conservative cure is a choice for patients without dyspnoea and background diseases, and it is necessary to recognize and treat severe complications early.

  10. Impact on Clinical Management of After-Hours Emergent or Urgent Breast Ultrasonography in Patients with Clinically Suspected Breast Abscesses

    PubMed Central

    Moseley, Tanya W.; Stanley, Ashley; Wei, Wei; Parikh, Jay R.

    2018-01-01

    Newly diagnosed breast abscesses are generally treated as a medical emergency that may necessitate immediate interventional treatment. At our institution, there is no in-house after-hours coverage for breast ultrasonography. We could find no peer-reviewed studies on the cost-effectiveness or clinical management impact of on-call ultrasound technologist coverage for imaging of breast abscesses. The purposes of this study were to determine the incidence of breast abscess in patients with clinical findings highly suggestive of abscess, identify clinical factors associated with breast abscess in such patients, and determine the impact of after-hours emergent or urgent breast ultrasonography on the clinical management of breast abscesses in both outpatients and inpatients. We retrospectively reviewed 100 after-hours breast ultrasound studies performed at our tertiary care center from 2011 to 2015 for evaluation of a suspected breast abscess. Only 26% of our patients with clinically suspected abscess ultimately had a confirmed abscess. Factors associated with breast abscess were a palpable abnormality and a history of breast surgery within the eight weeks before presentation. After-hours diagnosis of an abscess was associated with after-hours clinical intervention. Of the 74 patients in whom after-hours ultrasound imaging showed no evidence of abscess, only three patients underwent after-hours drainage. Our findings support overnight and weekend breast ultrasound coverage in large tertiary care centers. PMID:29473859

  11. Post-traumatic hepatic artery pseudo-aneurysm combined with subphrenic liver abscess treated with embolization.

    PubMed

    Sun, Long; Guan, Yong-Song; Wu, Hua; Pan, Wei-Min; Li, Xiao; He, Qing; Liu, Yuan

    2006-05-07

    A 23-year-old man with post-traumatic hepatic artery pseudo-aneurysm and subphrenic liver abscess was admitted. He underwent coil embolization of hepatic artery pseudo-aneurysm. The pseudo-aneurysm was successfully obstructed and subphrenic liver abscess was controlled. Super-selective trans-catheter coil embolization may represent an effective treatment for hepatic artery pseudo-aneurysm combined with subphrenic liver abscess in the absence of other therapeutic alternatives.

  12. Multiple splenic abscesses in a rather healthy woman: a case report.

    PubMed

    Saber, Aly

    2009-07-23

    Abscess of the spleen is a rather clinical rarity with reported mortality rate up to 47%. The timely and widespread use of imaging methods facilitates early diagnosis and guides treatment, thus improving the prognosis. Most of patients were with recognized risk factors including conditions that compromise the immune system, trauma and intravenous drug abuse in addicts. The surgical treatment by splenectomy is usually the first choice of treatment. A healthy 45-year-old woman presented to the outpatient clinic with fever, 39 degrees C together with persistent upper-left-quadrant abdominal pain. Her past medical history was free from any chronic debilitating diseases or other predisposing factors. Imaging included chest and abdominal X-ray, followed by a CT scan of the upper abdomen. Splenic abscess is an unusual and potentially life-threatening disease with a diagnostic challenge due to the nonspecific clinical picture and diagnosis confirmed based mostly on imaging studies. Multiple splenic abscesses are very rarely encountered in surgical practice with a reported high mortality rate in neglected and untreated cases. Splenectomy is a safe procedure for patients with splenic abscess.

  13. Primary pulmonary lymphoma mimicking a refractory lung abscess: A case report.

    PubMed

    Matsumoto, Takeshi; Otsuka, Kojiro; Funayama, Yuki; Imai, Yukihiro; Tomii, Keisuke

    2015-04-01

    The current study presents a case of primary pulmonary lymphoma (PPL) mimicking refractory lung abscess that was diagnosed at autopsy. An 80-year-old male with clinically inapparent aspiration presented with a large cavitated mass and pleural effusion. A lung abscess and empyema was diagnosed, therefore, antibiotics were administered and the pleural effusion was drained. Various examinations, including a biopsy, yielded no specific diagnosis. The lesion was considered inoperable due to the poor general condition of the patient. Subsequently, the mass that had been diagnosed as a refractory lung abscess became enlarged and a repeat biopsy resulted in a diagnosis of diffuse large B-cell lymphoma. The patient succumbed to sudden respiratory failure, and the final diagnosis of PPL was confirmed at autopsy. PPL is a rare disease that accounts for 0.45% of all pulmonary malignant tumors and is difficult to diagnose in inoperable cases. Therefore, patients with PPL who do not undergo surgery can be misdiagnosed and consequently treated inappropriately. PPL should therefore be considered in the differential diagnosis of a refractory lung abscess.

  14. Pediatric pyogenic liver abscess.

    PubMed

    Israeli, Rafi; Jule, Jose Ernesto; Hom, Jeffrey

    2009-02-01

    Pyogenic liver abscess (PLA) is a rare pediatric disease. Typically, PLA is found in adults with biliary disease. There are no typical physical findings or symptoms. Often, pathogenic organisms are not recovered for identification. This case illustrates a teenager presenting with prolonged episodes of fever and vomiting. With percutaneous drainage and month-long antibiotic therapy, the PLA resolved. This case illustrates that a high index of suspicion is needed for diagnosis.

  15. Association of gas hydrate formation in fluid discharges with anomalous hydrochemical profiles

    NASA Astrophysics Data System (ADS)

    Matveeva, T.

    2009-04-01

    Numerous investigations worldwide have shown that active underwater fluid discharge produces specific structures on the seafloor such as submarine seepages, vents, pockmarks, and collapse depressions. Intensive fluxes of fluids, especially of those containing hydrocarbon gases, result in specific geochemical and physical conditions favorable for gas hydrate (GH) formation. GH accumulations associated with fluid discharge are usually controlled by fluid conduits such as mud volcanoes, diapirs or faults. During last decade, subaqueous GHs become the subject of the fuel in the nearest future. However, the expediency of their commercial development can be proved solely by revealing conditions and mechanisms of GH formation. Kinetic of GH growth (although it is incompletely understood) is one of the important parameters controlling their formation among with gas solubility, pressure, temperature, gas quantity and others. Original large dataset on hydrate-related interstitial fluids obtained from different fluid discharge areas at the Sea of Okhotsk, Black Sea, Gulf of Cadiz, Lake Baikal (Eastern Siberia) allow to suggest close relation of the subaqueous GH formation process to anomalous hydrochemical profiles. We have studied the chemical and isotopic composition of interstitial fluids from GH-bearing and GH-free sediments obtained at different GH accumulations. Most attention was paid to possible influence of the interstitial fluid chemistry on the kinetic of GH formation in a porous media. The influence of salts on methane solubility within hydrate stability zones was considered by Handa (1990), Zatsepina & Buffet (1998), and later by Davie et al. (2004) from a theoretical point of view. Our idea is based on the experimentally proved fact that fugacity coefficient of methane dissolved in saline gas-saturated water which is in equilibrium with hydrates, is higher than that in more fresh water though the solubility is lower. Therefore, if a gradient of water salinity

  16. Actinomyces bacteremia in association with tubo-ovarian abscesses and hysteroscopic sterilization.

    PubMed

    Pakish, Janelle B; West, Loyd

    2014-08-01

    Actinomyces infection is well-documented in intrauterine devices but has not been previously associated with hysteroscopic sterilization using coil inserts. Additionally, abscesses associated with these implants have been observed in few cases. A 31-year-old multiparous woman with a history of hysteroscopic sterilization with coil inserts 18 months previously presented with several weeks of pelvic pain. Despite percutaneous drainage of intra-abdominal abscesses, her pain and fevers persisted. Blood cultures were positive for Actinomyces infection, and exploratory laparotomy demonstrated abscesses at both coil sites. When a causative organism cannot be identified or the when patient does not respond to standard antibiotic therapy, Actinomyces infection should be considered because prolonged antibiotic therapy is necessary.

  17. Unexpected inhibition of CO 2 gas hydrate formation in dilute TBAB solutions and the critical role of interfacial water structure

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Nguyen, Ngoc N.; Nguyen, Anh V.; Nguyen, Khoi T.

    Gas hydrates formed under moderated conditions open up novel approaches to tackling issues related to energy supply, gas separation, and CO 2 sequestration. Several additives like tetra-n-butylammonium bromide (TBAB) have been empirically developed and used to promote gas hydrate formation. Here we report unexpected experimental results which show that TBAB inhibits CO 2 gas hydrate formation when used at minuscule concentration. We also used spectroscopic techniques and molecular dynamics simulation to gain further insights and explain the experimental results. They have revealed the critical role of water alignment at the gas-water interface induced by surface adsorption of tetra-n-butylammonium cation (TBAmore » +) which gives rise to the unexpected inhibition of dilute TBAB solution. The water perturbation by TBA + in the bulk is attributed to the promotion effect of high TBAB concentration on gas hydrate formation. We explain our finding using the concept of activation energy of gas hydrate formation. Our results provide a step toward to mastering the control of gas hydrate formation.« less

  18. Multiple cortical brain abscesses due to Listeria monocytogenes in an immunocompetent patient.

    PubMed

    Khan, Sadia; Kumar, Anil; Kale, Satyajit; Kurkure, Nitin; Nair, Gulsiv; Dinesh, Kavitha

    2018-04-01

    Listeria monocytogenes is an intracellular organism which is well recognised for its ability to cause meningeal infections in neonates, immunosuppressed, debilitated and elderly individuals. 1 Other less common central nervous system (CNS) infections caused by Listeria spp. include rhomboencephalitis, cerebritis and abscesses in the brain, brain stem and spinal cord. The neuroradiological appearance of Listeria brain abscesses is similar to other types and may also mimic primary or metastatic brain tumours. 2 , 3 We report a case of Listeria brain abscesses in a patient who was being treated for atypical parkinsonism. A good clinical outcome was achieved after appropriate antimicrobial therapy.

  19. Evaluation of Continuous Irrigation and Drainage with a Double-Cavity Sleeve Tube to Treat Brain Abscess.

    PubMed

    Yang, Zhenxing; Du, Li; Liu, Renzhong; Jian, Zhihong; Wan, Yu

    2017-10-01

    Brain abscesses carries a high morbidity and mortality, and despite medical advances, it continues to pose diagnostic and therapeutic challenges worldwide. The traditional surgical approaches to treating brain abscess (burr hole aspiration and craniotomy) have both advantages and disadvantages and remain controversial. Here we report a single institution's experience with a new surgical approach for brain abscess. We retrospectively analyzed 46 patients with intracranial abscess who underwent continuous irrigation and drainage through a double-cavity sleeve tube placed surgically in conjunction with a 4-week course of intravenous cefotaxime and metronidazole at Renmin Hospital of Wuhan University between January 2008 and December 2016. The patients' medical records were analyzed for demographic data, clinical presentation, predisposing factors, imaging findings, microbiological test results, treatments, surgical techniques, and outcomes. The 46 patients included 29 males and 17 females, ranging in age from 22 to 74 years. A single abscess was detected in 34 patients, whereas 12 patients had multiple abscesses. The average duration of hospitalization was 12.6 days. After treatment, 38 of the 46 patients resumed a normal life despite minor deficits (Glasgow Outcome Score [GOS] 5), 6 patients exhibited slight neurologic deficits (GOS 4), and 2 patients died of severe systemic infection and multiorgan failure. In particular, a patient with a brain abscess broken into the ventricle recovered well (GOS 5). No patient required repeat aspiration or surgical excision. Continuous brain abscess cavity irrigation and drainage with a double-cavity sleeve tube is an effective treatment for brain abscess and produces excellent results, especially for an abscess broken into the ventricle. It combines the advantages of burr hole aspiration and open craniotomy excision. It is easy to perform and reduces costs and damage to the patient, and also shortens hospitalization time and

  20. MOLECULAR GAS AND STAR-FORMATION PROPERTIES IN THE CENTRAL AND BAR REGIONS OF NGC 6946

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Pan, Hsi-An; Sorai, Kazuo; Kuno, Nario

    In this work, we investigate the molecular gas and star-formation properties in the barred spiral galaxy NGC 6946 using multiple molecular lines and star-formation tracers. A high-resolution image (100 pc) of {sup 13}CO (1–0) is created for the inner 2 kpc disk by the single-dish Nobeyama Radio Observatory 45 m telescope and interferometer Combined Array for Research in Millimeter-wave Astronomy, including the central region (nuclear ring and bar) and the offset ridges of the primary bar. Single-dish HCN (1–0) observations were also made to constrain the amount of dense gas. The physical properties of molecular gas are inferred from (1)more » the large velocity gradient calculations using our observations and archival {sup 12}CO (1–0), {sup 12}CO(2–1) data, (2) the dense gas fraction suggested by the luminosity ratio of HCN to {sup 12}CO (1–0), and (3) the infrared color. The results show that the molecular gas in the central region is warmer and denser than that of the offset ridges. The dense gas fraction of the central region is similar to that of luminous infrared galaxies/ultraluminous infrared galaxies, whereas the offset ridges are close to the global average of normal galaxies. The coolest and least-dense region is found in a spiral-like structure, which was misunderstood to be part of the southern primary bar in previous low-resolution observations. The star-formation efficiency (SFE) changes by about five times in the inner disk. The variation of SFE agrees with the prediction in terms of star formation regulated by the galactic bar. We find a consistency between the star-forming region and the temperature inferred by the infrared color, suggesting that the distribution of subkiloparsec-scale temperature is driven by star formation.« less

  1. A dynamical model for the formation of gas rings and episodic starbursts near galactic centres

    NASA Astrophysics Data System (ADS)

    Krumholz, Mark R.; Kruijssen, J. M. Diederik

    2015-10-01

    We develop a simple dynamical model for the evolution of gas in the centres of barred spiral galaxies, using the Milky Way's Central Molecular Zone (CMZ, i.e. the central few hundred pc) as a case study. We show that, in the presence of a galactic bar, gas in a disc in the central regions of a galaxy will be driven inwards by angular momentum transport induced by acoustic instabilities within the bar's inner Lindblad resonance. This transport process drives turbulence within the gas that temporarily keeps it strongly gravitationally stable and prevents the onset of rapid star formation. However, at some point the rotation curve must transition from approximately flat to approximately solid body, and the resulting reduction in shear reduces the transport rates and causes gas to build up, eventually producing a gravitationally unstable region that is subject to rapid and violent star formation. For the observed rotation curve of the Milky Way, the accumulation happens ˜100 pc from the centre of the Galaxy, in good agreement with the observed location of gas clouds and young star clusters in the CMZ. The characteristic time-scale for gas accumulation and star formation is of the order of 10-20 Myr. We argue that similar phenomena should be ubiquitous in other barred spiral galaxies.

  2. Gas bubble formation in fused silica generated by ultra-short laser pulses.

    PubMed

    Cvecek, Kristian; Miyamoto, Isamu; Schmidt, Michael

    2014-06-30

    During processing of glass using ultra-fast lasers the formation of bubble-like structures can be observed in several glass types such as fused silica. Their formation can be exploited to generate periodic gratings in glasses but for other glass processing techniques such as waveguide-writing or glass welding by ultra-fast lasers the bubble formation proves often detrimental. In this work we present experiments and their results in order to gain understanding of the origins and on the underlying formation and transportation mechanisms of the gas bubbles.

  3. Self-Assembled Gold Nano-Ripple Formation by Gas Cluster Ion Beam Bombardment.

    PubMed

    Tilakaratne, Buddhi P; Chen, Quark Y; Chu, Wei-Kan

    2017-09-08

    In this study, we used a 30 keV argon cluster ion beam bombardment to investigate the dynamic processes during nano-ripple formation on gold surfaces. Atomic force microscope analysis shows that the gold surface has maximum roughness at an incident angle of 60° from the surface normal; moreover, at this angle, and for an applied fluence of 3 × 10 16 clusters/cm², the aspect ratio of the nano-ripple pattern is in the range of ~50%. Rutherford backscattering spectrometry analysis reveals a formation of a surface gradient due to prolonged gas cluster ion bombardment, although the surface roughness remains consistent throughout the bombarded surface area. As a result, significant mass redistribution is triggered by gas cluster ion beam bombardment at room temperature. Where mass redistribution is responsible for nano-ripple formation, the surface erosion process refines the formed nano-ripple structures.

  4. Staphylococcus aureus Prostatic abscess: a clinical case report and a review of the literature.

    PubMed

    Carroll, David E; Marr, Ian; Huang, G Khai Lin; Holt, Deborah C; Tong, Steven Y C; Boutlis, Craig S

    2017-07-21

    Prostatic abscess is a rare complication of acute bacterial prostatitis and is most commonly caused by Enterobacteriaceae. We report on a case of prostatic abscess caused by Staphylococcus aureus and conduct a review of the literature. We present a case of S. aureus prostatic abscess that was successfully treated with a combination of antibiotic and surgical therapy. The isolate was non–multidrug-resistant, methicillin-resistant Staphylococcus aureus and was genotyped as clonal complex 5, an emerging regional clone that is trimethoprim resistant and Panton-Valentine leukocidin positive. This current case report is the first to describe the use of clindamycin step-down therapy. A literature review identified a further 39 cases of S. aureus prostatic abscesses, of which 26 were methicillin resistant. S. aureus is an uncommon cause of prostatic abscess. Optimal management includes both antibiotic therapy and surgical drainage. Our use of clindamycin as step-down therapy was guided by its excellent prostatic penetration.

  5. Epidemiology and mortality of liver abscess in end-stage renal disease dialysis patients: Taiwan national cohort study.

    PubMed

    Hong, Chon-Seng; Chung, Kun-Ming; Huang, Po-Chang; Wang, Jhi-Joung; Yang, Chun-Ming; Chu, Chin-Chen; Chio, Chung-Ching; Chang, Fu-Lin; Chien, Chih-Chiang

    2014-01-01

    To determine the incidence rates and mortality of liver abscess in ESRD patients on dialysis. Using Taiwan's National Health Insurance Research Database, we collected data from all ESRD patients who initiated dialysis between 2000 and 2006. Patients were followed until death, end of dialysis, or December 31, 2008. Predictors of liver abscess and mortality were identified using Cox models. Of the 53,249 incident dialysis patients identified, 447 were diagnosed as having liver abscesses during the follow-up period (224/100,000 person-years). The cumulative incidence rate of liver abscess was 0.3%, 1.1%, and 1.5% at 1 year, 5 years, and 7 years, respectively. Elderly patients and patients on peritoneal dialysis had higher incidence rates. The baseline comorbidities of diabetes mellitus, polycystic kidney disease, malignancy, chronic liver disease, biliary tract disease, or alcoholism predicted development of liver abscess. Overall in-hospital mortality was 10.1%. The incidence of liver abscess is high among ESRD dialysis patients. In addition to the well known risk factors of liver abscess, two other important risk factors, peritoneal dialysis and polycystic kidney disease, were found to predict liver abscess in ESRD dialysis patients.

  6. Human Listeriosis Presenting as Breast Abscess: Report of a Rare Case.

    PubMed

    Kandi, Venkataramana

    2017-02-01

    An abscess is defined as a collection of pus in various tissues of the body including skin and other organs. Abscesses most commonly are formed on the skin under the armpits, groin areas, and rectal areas. Most abscesses involve microbial infections with few remaining sterile. The treatment of abscesses includes both medical and surgical intervention. In the era of multidrug resistance, isolation and identification of the causative microbe and testing for antimicrobial susceptible patterns assume greater significance for the better management of patients, thereby reducing the resultant morbidity and mortality. Listeria spp. are a group of aerobic and non-spore forming gram-positive bacilli. They are present in the environment, soil, and water. Listeria spp. have also been noted to be present as a normal intestinal flora of animals. They are known for their ability to thrive under both cold and hot environmental conditions. Human infections with Listeria spp. have not been frequently reported, mostly because of the difficulty in laboratory identification and complex clinical presentations. In humans, Listeria spp. have been frequently responsible for food poisoning and neonatal meningitis. Although not considered as a classic pathogen, Listeria spp. are associated with infections in elderly people, pregnant women, newborns, and persons with weakened immune systems. This report presents a case of breast abscess caused by Listeria spp. in a young lactating female belonging to rural India.

  7. [The Continued Breastfeeding Experiences of Women Who Suffer From Breast Abscess].

    PubMed

    Liu, Yu-Yan; Chen, Wei-Chih; Chen, Shu-Ling

    2016-04-01

    Up to 11% of women with mastitis develop a breast abscess, which obviously affects breastfeeding. Therefore, this is a potentially significant issue for women's health. Women with breast abscesses suffer from severe pain. Pain is the most significant factor causing the termination of breastfeeding. The experience of women with breast abscesses who continued to breastfeed may provide valuable insights/guidance to women who are currently in the same or similar situations. This study explores the continuous breastfeeding experience of women with breast abscesses. We collected qualitative data from 10 qualified female participants using 60-90 minute, in-depth interviews that were conducted between April 2012 and June 2012 in a central medical center. All interviews were recorded and transcribed verbatim. Content analysis was used to analyze and categorize the major themes. Results were generalized into the following seven themes: (1) experiencing uncomfortable breast pain; (2) feeling helpless to manage the abnormal breast symptoms; (3) relying on the concept of motherhood to support continued breastfeeding; (4) feeling shocked about the process of diagnosis and treatment; (5) facing the doubts and difficulties regarding continuing to breastfeed; (6) experiencing the assistance of the support system for breastfeeding; (7) returning to a normal pattern of life. The findings provide nurses with a deeper understanding of the biological and psychological behaviors and social support system experiences of women with breast abscesses who continue to breastfeed. Study results may serve as a reference for nurses in providing mother-centered breastfeeding care.

  8. Endoscopic Endonasal Transsphenoidal Drainage of a Spontaneous Candida glabrata Pituitary Abscess.

    PubMed

    Strickland, Ben A; Pham, Martin; Bakhsheshian, Joshua; Carmichael, John; Weiss, Martin; Zada, Gabriel

    2018-01-01

    Noniatrogenic pituitary abscess remains a rare clinical entity, and is the indication for surgery in <1% of transsphenoidal approaches. Correct diagnosis of this rare entity is often delayed. Without timely treatment, morbidity and mortality are high. Of the 200 cases reported to date, less than one-half have identified a causative organism. We report the second case of a pituitary abscess caused by Candida species, and also provide an intraoperative video showing the endoscopic management of this pathology. A 33-year-old woman presented with headache, hypopituitarism, and vision loss in the setting of diabetic ketoacidosis, and was found to have multiple abscesses in the liver, lung, kidney, and uterus. Brain magnetic resonance imaging revealed a 15-mm cystic sellar mass with restricted diffusion. The patient underwent urgent evacuation of the abscess via an endoscopic endonasal transsphenoidal route, with obvious purulent material filling the sella, later identified as Candida glabrata. Antimicrobial therapy was refined appropriately, and she exhibited significant improvement in neurologic function, although endocrinopathy has persisted. With timely management, including a combination of surgical drainage and appropriate antimicrobial therapy, neurologic outcomes are good in most cases of pituitary abscess; however, endocrinopathy often does not improve. Although most reported cases with identified causative organisms speciate bacteria, some cases are of fungal etiology and require different antimicrobial agents. This further underscores the importance of identifying the causative agent. Copyright © 2017 Elsevier Inc. All rights reserved.

  9. Post-traumatic hepatic artery pseudo-aneurysm combined with subphrenic liver abscess treated with embolization

    PubMed Central

    Sun, Long; Guan, Yong-Song; Wu, Hua; Pan, Wei-Min; Li, Xiao; He, Qing; Liu, Yuan

    2006-01-01

    A 23-year-old man with post-traumatic hepatic artery pseudo-aneurysm and subphrenic liver abscess was admitted. He underwent coil embolization of hepatic artery pseudo-aneurysm. The pseudo-aneurysm was successfully obstructed and subphrenic liver abscess was controlled. Super-selective trans-catheter coil embolization may represent an effective treatment for hepatic artery pseudo-aneurysm combined with subphrenic liver abscess in the absence of other therapeutic alternatives. PMID:16718774

  10. Characteristics of superior orbital subperiosteal abscesses in children.

    PubMed

    Quintanilla-Dieck, Lourdes; Chinnadurai, Sivakumar; Goudy, Steven L; Virgin, Frank W

    2017-03-01

    Superior pediatric orbital subperiosteal abscesses (SPAs) are less common than medial ones, and clinical features specific to patients with superior SPAs have not been well defined. Clinical characteristics between patients with superior and medial SPAs are compared to determine whether superior location is a risk factor for surgical intervention. Retrospective cohort study. The target population consisted of patients diagnosed with an SPA and seen by the pediatric otolaryngology service at a tertiary children's hospital between January 2010 and October 2014. Imaging characteristics including proptosis, hypoglobus, intraorbital air, and abscess volume as well as treatment interventions were reviewed. Forty patients between 5 and 17 years of age treated for an orbital SPA were identified. Thirteen patients were identified as having superior SPAs; 27 had medial SPAs. The average ages in the two groups were 10.92 and 9.26 years, respectively. The odds ratio for surgical treatment per each increasing year of age was 1.5 (P = .004). The proportion of patients requiring surgery was significantly different between the groups (12/13 superior vs. 13/27 medial, P = .01). The predominant organism group cultured in surgical patients was Streptococcus anginosus (8/24, 29.17%). Superior SPA patients had significantly more proptosis, hypoglobus, and abscess volume on computed tomography scan. Patients with superior SPAs may present with more advanced disease, leading to a higher rate of characteristics such as proptosis, hypoglobus, and intraorbital air, factors that would predispose to surgical drainage. We found that abscess volume was the most predictive of surgery. 4 Laryngoscope, 127:735-740, 2017. © 2016 The American Laryngological, Rhinological and Otological Society, Inc.

  11. Radiographic bone fill following debridement of a periodontal abscess. A case report.

    PubMed

    Khocht, A; Faldu, M G

    1998-01-01

    A periodontal abscess often develops in association with deepened periodontal pockets. Traditional management is by establishing drainage and prescribing antibiotics. This is usually followed by surgical pocket reduction. This case report discusses the remarkable healing of a periodontal abscess by establishing drainage alone without resorting to surgical pocket reduction. A 42-year-old white male presented with swollen gingivae associated with the mesiolingual of tooth #23. Increased probing depth and suppuration were evident. Radiographic bone loss on mesial #23 was present. A diagnosis of periodontal abscess was established. The abscess was drained through the orifice of the pocket. The patient failed to return for follow-up as instructed. A year later, the patient came back. Clinical evaluation showed healthy gingival tissues with probing depth of 3 mm on the mesiolingual of tooth #23. Radiographic evaluation showed bone fill of the osseous defect on the mesial of #23. The results of this case suggest that sufficient time should be allowed for healing prior to surgical pocket reduction.

  12. Nitric oxide nanoparticles: pre-clinical utility as a therapeutic for intramuscular abscesses.

    PubMed

    Schairer, David; Martinez, Luis R; Blecher, Karin; Chouake, Jason; Nacharaju, Parimala; Gialanella, Philip; Friedman, Joel M; Nosanchuk, Joshua D; Friedman, Adam

    2012-01-01

    Nitric oxide (NO) is a critical component of host defense against invading pathogens; however, its therapeutic utility is limited due to a lack of practical delivery systems. Recently, a NO-releasing nanoparticulate platform (NO-np) was shown to have in vitro broad-spectrum antimicrobial activity and in vivo pre-clinical efficacy in a dermal abscess model. To extend these findings, both topical (TP) and intralesional (IL) NO-np administration was evaluated in a MRSA intramuscular murine abscess model and compared with vancomycin. All treatment arms accelerated abscess clearance clinically, histologically, and by microbiological assays on both days 4 and 7 following infection. However, abscesses treated with NO-np via either route demonstrated a more substantial, statistically significant decrease in bacterial survival based on colony forming unit assays and histologically revealed less inflammatory cell infiltration and preserved muscular architecture. These data suggest that the NO-np may be an effective addition to our armament for deep soft tissue infections.

  13. Lung abscess as a complication of bronchial thermoplasty.

    PubMed

    Balu, Anandh; Ryan, Dorothy; Niven, Robert

    2015-09-01

    Bronchial thermoplasty (BT) is an emerging treatment modality for patients with difficult to treat asthma. It has been shown to be beneficial for symptom control and improves quality of life and reduces frequency of hospitalization. Safety data from the two major trials of BT indicate that patients who undergo these procedures are most likely to experience adverse respiratory events in the first six weeks post treatment. Lung abscess has never been reported as a direct complication of BT. In this case; we report a lung abscess as an immediate complication of BT, which we believe may be the first case. We describe a forty three year old Caucasian female presented three days post-bronchial thermoplasty with left sided chest pain radiating to the back associated with shortness of breath, wheeze and dry cough. She had also started to feel hot and cold and generally unwell. It remains unclear why this patient developed a lung abscess so acutely post BT treatment. It is important that safety data continues to be collated and published as the procedure becomes more widely available with further long term follow-up in particular.

  14. Tolerance of brightness and contrast adjustments on chronic apical abscess and apical granuloma interpretation

    NASA Astrophysics Data System (ADS)

    Purnamasari, L.; Iskandar, H. H. B.; Makes, B. N.

    2017-08-01

    In digitized radiography techniques, adjusting the image enhancement can improve the subjective image quality by optimizing the brightness and contrast for diagnostic needs. To determine the value range of image enhancement (brightness and contrast) on chronic apical abscess and apical granuloma interpretation. 30 periapical radiographs that diagnosed chronic apical abscess and 30 that diagnosed apical granuloma were adjusted by changing brightness and contrast values. The value range of brightness and contrast adjustment that can be tolerated in radiographic interpretations of chronic apical abscess and apical granuloma spans from -10 to +10. Brightness and contrast adjustments on digital radiographs do not affect the radiographic interpretation of chronic apical abscess and apical granuloma if conducted within the value range.

  15. Isolated tuberculous liver abscess in an immunocompetent adult patient: A case report and literature review.

    PubMed

    Chen, Tsung-Chia; Chou, Ling-Tai; Huang, Chen-Cheng; Lai, An-Bang; Wang, Jen-Hsien

    2016-06-01

    Tuberculous liver abscess is a rare disease entity even in endemic areas of Mycobacterium tuberculosis. It is usually accompanied by pulmonary tuberculosis or enteric tuberculosis. Further, an isolated tuberculous liver abscess is extremely rare. The disease is diagnosed by laparotomy or postmortem autopsy in most cases, and some authors adopted a 9-month antituberculosis regimen. We herein report a case of an isolated tuberculous liver abscess that initially manifested as persistent fever and general malaise, which was diagnosed by liver biopsy and treated successfully with a 6-month antituberculosis regimen and percutaneous abscess drainage. Copyright © 2013. Published by Elsevier B.V.

  16. Streptococcus sanguinis brain abscess as complication of subclinical endocarditis: emphasizing the importance of prompt diagnosis.

    PubMed

    Kassis, Hayah; Marnejon, Thomas; Gemmel, David; Cutrona, Anthony; Gottimukkula, Rajashree

    2010-06-01

    A 19-year-old male patient was diagnosed with S. sanguinis brain abscess of unknown etiopathology as a complication of subclinical endocarditis. While viridans streptococci are implicated in dental seeding to the heart, S. sanguinis brain abscesses are rare. Six previous cases of S. sanguinis brain abscess in the literature reported dental procedures and maxillofacial trauma. In our patient, there was no obvious source of infective endocarditis preceding the development of brain abscess. This demonstrates the importance of prompt diagnosis and initiation of antimicrobial therapy given the potential for long-term sequelae such as focal deficits and seizures.

  17. Gas cluster ion beam assisted NiPt germano-silicide formation on SiGe

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Ozcan, Ahmet S., E-mail: asozcan@us.ibm.com; Lavoie, Christian; Jordan-Sweet, Jean

    We report the formation of very uniform and smooth Ni(Pt)Si on epitaxially grown SiGe using Si gas cluster ion beam treatment after metal-rich silicide formation. The gas cluster ion implantation process was optimized to infuse Si into the metal-rich silicide layer and lowered the NiSi nucleation temperature significantly according to in situ X-ray diffraction measurements. This novel method which leads to more uniform films can also be used to control silicide depth in ultra-shallow junctions, especially for high Ge containing devices, where silicidation is problematic as it leads to much rougher interfaces.

  18. Formation resistivity measurements from within a cased well used to quantitatively determine the amount of oil and gas present

    DOEpatents

    Vail, III, William Banning

    2000-01-01

    Methods to quantitatively determine the separate amounts of oil and gas in a geological formation adjacent to a cased well using measurements of formation resistivity. The steps include obtaining resistivity measurements from within a cased well of a given formation, obtaining the porosity, obtaining the resistivity of formation water present, computing the combined amounts of oil and gas present using Archie's Equations, determining the relative amounts of oil and gas present from measurements within a cased well, and then quantitatively determining the separate amounts of oil and gas present in the formation. Resistivity measurements are obtained from within the cased well by conducting A.C. current from within the cased well to a remote electrode at a frequency that is within the frequency range of 0.1 Hz to 20 Hz.

  19. Breast abscess due to Actinomyces europaeus.

    PubMed

    Silva, W A; Pinheiro, A M; Jahns, B; Bögli-Stuber, K; Droz, S; Zimmerli, S

    2011-06-01

    Actinomyces europaeus was first described in 1997 as a new species causing predominantly skin and soft-tissue infections. Mastitis due to A. europaeus is an unusual condition. This article reports a case of primary breast abscess caused by A. europaeus in a postmenopausal woman.

  20. Distinguishing the Source of Natural Gas Accumulations with a Combined Gas and Co-produced Formation Water Geochemical Approach: a Case Study from the Appalachian Basin

    EPA Pesticide Factsheets

    The purpose of this study is to discuss the use of gas and co-produced formation water geochemistry for identifying the source of natural gas and present gas geochemistry for the northern Appalachian Basin.

  1. Performance of (UNS 8028) production tubing material in sour service environment of Khuff gas formation

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Al-Maslamani, M.

    Khuff gas formation is one of the largest reservoirs of non-associated gas in the world. Recent developments in exploration and production from Khuff gas formation at the Qatar North Field required materials of construction with long periods of production without work over and chemical inhibition. Gas produced contains corrosive constituents such as 1% H{sub 2}S, 4% CO{sub 2} and brine at pressures exceeding 300 barg (CITHP). For operational reasons, two of the 16 wells drilled were needed to work over after 2 years of service and showed evidence of crevice pitting corrosion and thread galling on the Corrosion Resistance Alloymore » (CRA) tubing material. Full inspection and analysis of the problem are addressed in this paper.« less

  2. [Bacteriologic study of abscesses caused by bites of snakes of the genus Bothrops].

    PubMed

    de Andrade, J G; Pinto, R N; de Andrade, A L; Martelli, C M; Zicker, F

    1989-01-01

    The bacterial flora of 99 cases of abscesses following Bothrops snakebite were analysed. They corresponded to 61.1% of all snakebite abscesses observed in 1030 patients attending the Hospital de Doenças Tropicais de Goiánia in Goiás, Brazil, from January 1984 to April 1988. An exsudate sample of each abscess was examined by Gram stain, culture and susceptibility tests. The Gram negative bacillis, Morganella morganii, Escherichia coli and Providencia sp were the most frequent bacterias isolated. They were identified in 44.4%, 20.2% and 13.1% of the samples respectively. This flora was similar to those described in snake mouth and venom by other researchers. Based on the results of the susceptibility tests the authors suggested the use of chloramphenicol for the treatment of those abscesses which do not respond to simple drainage.

  3. Molecular gas mass and star formation of 12 Virgo spiral galaxies along the ram pressure time sequence

    NASA Astrophysics Data System (ADS)

    Chung, Eun Jung; Kim, S.

    2014-01-01

    The ram pressure stripping is known as one of the most efficient mechanisms to deplete the ISM of a galaxy in the clusters of galaxies. As being affected continuously by ICM pressure, a galaxy may lose their gas that is the fuel of star formation, and consequently star formation rate would be changed. We select twelve Virgo spiral galaxies according to their stage of the ram pressure stripping event to probe possible consequences of star formation of spiral galaxies in the ram pressure and thus the evolution of galaxies in the Virgo cluster. We investigate the molecular gas properties, star formation activity, and gas depletion time along the time from the ram pressure peak. We also discussed the evolution of galaxies in the cluster.

  4. Sedimentary facies and gas accumulation model of Lower Shihezi Formation in Shenguhao area, northern Ordos basin, China

    NASA Astrophysics Data System (ADS)

    Lin, Weibing; Chen, Lin; Lu, Yongchao; Zhao, Shuai

    2017-04-01

    The Lower Shihezi formation of lower Permian series in Shenguhao develops the highest gas abundance of upper Paleozoic in China, which has already commercially produced on a large scale. The structural location of Shenguhao belongs to the transition zone of Yimeng uplift and Yishan slope of northern Ordos basin, China. Based on the data of core, well logging and seismic, the sedimentary facies and gas accumulation model have been studied in this paper. Sedimentary facies analysis shows that the braided delta is the major facies type developed in this area during the period of Lower Shihezi formation. The braided delta can be further divided into two microfacies, distributary channel and flood plain. The distributary channel sandbody develops the characteristics of scour surface, trough cross beddings and normal grading sequences. Its seismic reflection structure is with the shape of flat top and concave bottom. Its gamma-ray logging curve is mainly in a box or bell shape. The flood plain is mainly composed of thick mudstones. Its seismic reflection structure is with the shape of parallel or sub-parallel sheet. Its gamma-ray logging curve is mainly in a linear tooth shape. On the whole, the distribution of sandbody is characterized by large thickness, wide area and good continuity. Based on the analysis of the sea level change and the restoration of the ancient landform in the period of Lower Shihezi formation, the sea level relative change and morphology of ancient landform have been considered as the main controlling factors for the development and distribution of sedimentary facies. The topography was with big topographic relief, and the sea level was relatively low in the early stage of Low Shihezi formation. The sandbody distributed chiefly along the landform depressions. The sandbody mainly developed in the pattern of multiple vertical superpositions with thick layer. In the later stage, landform gradually converted to be flat, and strata tended to be gentle

  5. Eikenella corrodens brain abscess after repeated periodontal manipulations cured with imipenem and neurosurgery.

    PubMed

    Asensi, V; Alvarez, M; Carton, J A; Lago, M; Maradona, J A; Asensi, J M; Arribas, J M

    2002-08-01

    Eikenella corrodens is a facultatively anaerobic gram-negative rod that colonizes the oral cavity and very rarely produces central nervous system (CNS) infections. Frontal lobe abscesses are occasionally associated with a dental source of infection. We report a case of an adult man with overzealous dental cleaning habits who developed a right frontal brain abscess caused by E. corrodens. He underwent neurosurgical drainage of the pus and was successfully treated with imipenem 4 g/i.v./day for 4 weeks with no complications. Repeated periodontal trauma could explain the Eikenella brain abscess in this case.

  6. [A case of liver abscess caused by Fusobacterium nucleatum in a patient with recurrent periodontal diseases].

    PubMed

    Kim, Yong Hwan; Yoon, Hee Jung; Park, Chan Woong; Kim, Jung Ho; Lee, Min Kyung; Kim, Ki Bang; Na, Dong Jib; Kim, Ji Myung

    2011-01-01

    Fusobacteria are anaerobic gram-negative, non-spore forming bacilli found in normal flora of the oral cavity, urogenital tract, and gastrointestinal tract. Fusobacterium nucleatum has been seldom reported as a cause of liver abscess, particularly in immunocompetent hosts. A 55-year-old man with frequent periodontal disease visited our hospital with intermittent fever and headache for 2 months. Abdominal CT scan revealed an 8.2 × 6 cm mass in the right hepatic lobe with central low density. Abscess culture revealed F. nucleatum as the causative organism. Percutaneous abscess drainage and intravenous administration of antibiotics for 4 weeks improved symptoms and decreased the abscess size. We report a rare case of liver abscess due to F. nucleatum in an immunocompetent man with periodontal disease.

  7. Epidemiology and Mortality of Liver Abscess in End-Stage Renal Disease Dialysis Patients: Taiwan National Cohort Study

    PubMed Central

    Huang, Po-Chang; Wang, Jhi-Joung; Yang, Chun-Ming; Chu, Chin-Chen; Chio, Chung-Ching; Chang, Fu-Lin; Chien, Chih-Chiang

    2014-01-01

    Background and Objectives To determine the incidence rates and mortality of liver abscess in ESRD patients on dialysis. Design, Setting, Participants, & Measurements Using Taiwan’s National Health Insurance Research Database, we collected data from all ESRD patients who initiated dialysis between 2000 and 2006. Patients were followed until death, end of dialysis, or December 31, 2008. Predictors of liver abscess and mortality were identified using Cox models. Results Of the 53,249 incident dialysis patients identified, 447 were diagnosed as having liver abscesses during the follow-up period (224/100,000 person-years). The cumulative incidence rate of liver abscess was 0.3%, 1.1%, and 1.5% at 1 year, 5 years, and 7 years, respectively. Elderly patients and patients on peritoneal dialysis had higher incidence rates. The baseline comorbidities of diabetes mellitus, polycystic kidney disease, malignancy, chronic liver disease, biliary tract disease, or alcoholism predicted development of liver abscess. Overall in-hospital mortality was 10.1%. Conclusions The incidence of liver abscess is high among ESRD dialysis patients. In addition to the well known risk factors of liver abscess, two other important risk factors, peritoneal dialysis and polycystic kidney disease, were found to predict liver abscess in ESRD dialysis patients. PMID:24551077

  8. Gas Hydrate Formation Probability Distributions: The Effect of Shear and Comparisons with Nucleation Theory.

    PubMed

    May, Eric F; Lim, Vincent W; Metaxas, Peter J; Du, Jianwei; Stanwix, Paul L; Rowland, Darren; Johns, Michael L; Haandrikman, Gert; Crosby, Daniel; Aman, Zachary M

    2018-03-13

    Gas hydrate formation is a stochastic phenomenon of considerable significance for any risk-based approach to flow assurance in the oil and gas industry. In principle, well-established results from nucleation theory offer the prospect of predictive models for hydrate formation probability in industrial production systems. In practice, however, heuristics are relied on when estimating formation risk for a given flowline subcooling or when quantifying kinetic hydrate inhibitor (KHI) performance. Here, we present statistically significant measurements of formation probability distributions for natural gas hydrate systems under shear, which are quantitatively compared with theoretical predictions. Distributions with over 100 points were generated using low-mass, Peltier-cooled pressure cells, cycled in temperature between 40 and -5 °C at up to 2 K·min -1 and analyzed with robust algorithms that automatically identify hydrate formation and initial growth rates from dynamic pressure data. The application of shear had a significant influence on the measured distributions: at 700 rpm mass-transfer limitations were minimal, as demonstrated by the kinetic growth rates observed. The formation probability distributions measured at this shear rate had mean subcoolings consistent with theoretical predictions and steel-hydrate-water contact angles of 14-26°. However, the experimental distributions were substantially wider than predicted, suggesting that phenomena acting on macroscopic length scales are responsible for much of the observed stochastic formation. Performance tests of a KHI provided new insights into how such chemicals can reduce the risk of hydrate blockage in flowlines. Our data demonstrate that the KHI not only reduces the probability of formation (by both shifting and sharpening the distribution) but also reduces hydrate growth rates by a factor of 2.

  9. The multistep road to ventilator-associated lung abscess: A retrospective study of S.aureus ventilator-associated pneumonia

    PubMed Central

    Mounier, Roman; Lobo, David; Voulgaropoulos, Julia; Martin, Mathieu; Aït-Mamar, Bouziane; Bitot, Valérie; Jost, Paul-Henri; Birnbaum, Ron; Nebbad, Biba; Cook, Fabrice; Dhonneur, Gilles

    2017-01-01

    Object We observed some cases of lung abscess (LA) in ICU patients suffering S.aureus ventilator-associated pneumonia (S.aureus-VAP). We aimed to assess which of the host and/or bacteria-related features are associated with LA. Methods We conducted a retrospective study from January 2009 to July 2013 in a trauma surgical ICU within a teaching hospital. All adult patients presenting with S.aureus-VAP were included. We compared two groups of patients according to the formation or not of LA concomitantly to S.aureus-VAP. Results Seventy-nine S.aureus-VAP patients, predominantly males (85%) of rather young age (mean [SD]: 35yr [21–64]) with severe trauma (initial Simplified Acute Score II = 42 [32–52]) related-ICU admission, were included. Among them, 10 (14%) developed LA. Patient’s characteristics significantly associated with LA development were: a younger age (p = 0.003), road traffic accidents admission (p = 0.017), head injury (p = 0.002), lower Glasgow Coma Scale (p = 0.009), blunt chest trauma (p = 0.01) pneumothorax (p = 0.01) and lung contusions (p = 0.002). No microbiological factors were significantly associated with LA formation. Abscesses were mostly bilateral, ≥5 cm of diameter and with a posterior location. Conclusions Our results do not favor a specific virulence of S.aureus, but rather highlight the role of multiple insults to the lung, promoting LA formation. Despite a similar severity score, patients with LA had more serious trauma, combining severe both chest and head insults. PMID:29261721

  10. A squamous cell lung carcinoma with abscess-like distant metastasis.

    PubMed

    Dursunoğlu, Neşe; Başer, Sevin; Evyapan, Fatma; Kiter, Göksel; Ozkurt, Sibel; Polat, Bahattin; Karabulut, Nevzat

    2007-01-01

    This is a metastatic spread of squamous cell lung carcinoma to lungs, liver, lymph node, bone and subcutanous region as multiple abscess-like lesions. A fifty-five years old man admitted to the out-patient clinic with fever, cough, hemopthysis, night sweats, chest pain, abdominal pain and weight loss. In a short period of time abcess like lesions developed in his lungs, liver, lymph node, bone and subcutanous region. Though the clinical presentation is suggestive for an infectious condition, no success to antimicrobial treatment and negative results of microbiological studies have arised a need to further investigations. Histopathological studies of the abscess wall ultimately gave the definitive diagnosis as metastatic squamous cell carcinoma. We believe that case report is interesting because of the uncommon metastatic lesions masquerading the abscesses and also wide-spread multiple distant invasions of a squamous cell lung carcinoma in a short time period.

  11. Clinical features and outcome of cerebral abscess in congenital heart disease.

    PubMed

    Mehnaz, Atiq; Syed, Ahmed Umair; Saleem, Allana Salman; Khalid, Chishti N

    2006-01-01

    Cerebral abscess is a serious life threatening complication of several diseases. The objective of this study was to look at the clinical profile, microbiology and outcome of children with cerebral abscess having an underlying congenital heart disease as compared to other predisposing conditions. Thirty children aged less than 15 years were reviewed. There were 15 males and 15 females. The mean age of presentation was 5.6 +/- 4.4 years. The duration of illness at the time of admission was 17.6 +/- 24.6 days. Typically patients presented with fever, vomiting, headache and seizures. The predisposing conditions found were cyanotic congenital heart disease in 11 (37%) of children, meningitis in 6 (20%), septicemia in 7 (23%) and no underlying cause was found in 5 (17%) children. The most common microbe in children with cyanotic congenital heart disease was of the Streptococcus milleri group (52%). Computerized tomography confirmed the diagnosis and the most common location of the abscess was the parietal lobe of the cerebral hemisphere. All abscesses were large, more than 2 cm in diameter and were aspirated surgically. Excision was performed in 6 children. Five children expired, one due to a intracranial bleeding and the others due to severe cerebral edema and tentorial herniation. Complications were seen in 20 children and 16 had sequelae, hemiparesis in 11 and seizure disorder in 5. Brain abscess is a serious infection with poor outcome if diagnosed late. Delayed surgical drainage has high morbidity and mortality. The threshold for diagnosis should be low particularly in children with a predisposing condition like cyanotic congenital heart disease.

  12. Klebsiella Pneumoniae Liver Abscess: A Case Series of Six Asian Patients

    PubMed Central

    Oikonomou, Katerina G.; Aye, Myint

    2017-01-01

    Case series Patient: Female, 60 • Male, 45 • Male, 56 • Male, 65 • Female, 57 • Male, 35 Final Diagnosis: Klebsiella pneumoniae liver abscess Symptoms: Fever Medication: — Clinical Procedure: — Specialty: Infectious Diseases Objective: Rare co-existance of disease or pathology Background: Liver abscesses represent a serious infection of hepatic parenchyma and are associated with significant morbidity and mortality. The emergence of a new hypervirulent variant of Klebsiella pneumoniae, which can cause serious infections in the Asian population, is under investigation. We report a case series of six Asian patients hospitalized at our institution from January 2013 to November 2015 for liver abscess due to Klebsiella pneumoniae. Case Report: Charts of six Asian patients were retrospectively reviewed. Four patients were male and two were female. The mean age was 53 years (range: 35–64 years). All patients had no known past medical history of immunodeficiency. Three patients had multiple liver abscesses at the time of initial presentation. In five patients, the source of entry of the pathogenic microorganism was unknown and in one patient the suspected source of entry was the gastrointestinal tract. In three patients there was also concomitant Klebsiella pneumoniae bacteremia. The mean duration of antibiotic treatment was seven weeks and the mean duration of hospital stay was 13.5 days. Conclusions: Liver abscess should always be included in the differential diagnosis in cases of sepsis without obvious source and/or in the clinical scenarios of fever, abdominal pain, and liver lesions. PMID:28947732

  13. Ultrasound features of purulent skin and soft tissue infection without abscess.

    PubMed

    Nelson, Courtney E; Chen, Aaron E; Bellah, Richard D; Biko, David M; Ho-Fung, Victor M; Francavilla, Michael L; Xiao, Rui; Kaplan, Summer L

    2018-06-06

    Ultrasound (US) aids clinical management of skin and soft tissue infection (SSTI) by differentiating non-purulent cellulitis from abscess. However, purulent SSTI may be present without abscess. Guidelines recommend incision and drainage (I & D) for purulent SSTI, but US descriptions of purulent SSTI without abscess are lacking. We retrospectively reviewed pediatric emergency department patients with US of the buttock read as negative for abscess. We identified US features of SSTI with adequate interobserver agreement (kappa > 0.45). Six independent observers then ranked presence or absence of these features on US exams. We studied association between US features and positive wound culture using logistic regression models (significance at p < 0.05). Of 217 children, 35 patients (16%) had cultures positive for pathogens by 8 h after US and 61 patients (32%) had cultures positive by 48 h after US. We found kappa > 0.45 for focal collection > 1.0 cm (κ = 0.57), hyperemia (κ = 0.57), swirling with compression (κ = 0.52), posterior acoustic enhancement (κ = 0.47), and cobblestoning or branching interstitial fluid (κ = 0.45). Only cobblestoning or interstitial fluid was associated with positive wound cultures in logistic regression models at 8 and 48 h. Cobblestoning or interstitial fluid on US may indicate presence of culture-positive, purulent SSTI in patients without US appearance of abscess. Although our study has limitations due to its retrospective design, this US appearance should alert imagers that the patient may benefit from early I & D.

  14. Liver abscess in ancient Greek and Greco-Roman texts.

    PubMed

    Papavramidou, Niki; Samara, Anastasia; Christopoulou-Aletra, Helen

    2014-01-01

    This paper presents liver abscesses, as studied in the ancient Greek and Greco-Roman bibliography. Numerous references concerning this entity can be found in the writings of the Hippocratic doctors (5th cent. B.C.), Archigenes of Apamea (1st cent. A.D.), Galen (2nd cent. A.D.), Aretaeus of Cappadocia (2nd cent. A.D), Oribasius (4th cent. A.D.), Theophilus Protospatharius (7th cent. A.D.), and Paulus Nicaeensis (7th-10th cent. A.D.). In most cases the clinical manifestations, the prognosis and the method of treatment are presented. In all ancient writings we studied, the rupture of a liver abscess is also part of the main theme. In specific, the path that the fluid would follow after a rupture was considered to be a main prognostic factor, i.e. if the fluid "coursed into the stomach", the patient would definitely die. In this work, an attempt is also made to correlate the ancient descriptions to modern medical entities, such as amebic or pyogenic liver abscess.

  15. Pneumothorax Secondary to Septic Pulmonary Emboli in a Long-term Hemodialysis Patient with Psoas Abscess.

    PubMed

    Okabe, Masahiro; Kasai, Kenji; Yokoo, Takashi

    2017-12-01

    Pneumothorax secondary to septic pulmonary embolism (SPE) is rare but life-threatening. We herein report a long-term hemodialysis patient with psoas abscess caused by methicillin-resistant Staphylococcus aureus, associated with other muscle and splenic abscesses and SPE. Intravenous vancomycin treatment and percutaneous drainage of the psoas abscess rapidly improved her condition. However, the SPE lesions continued to increase, and right-sided pneumothorax occurred 10 days after treatment. The pneumothorax resolved after two months and SPE and all abscesses after four months of treatment. Since late-onset pneumothorax caused by SPE can occur despite successful treatment of the primary infection, care should be taken with such patients.

  16. Idiopathic bilateral male breast abscess.

    PubMed

    Sinha, Rajan Kumar; Sinha, Mithilesh Kumar; Gaurav, Kumar; Kumar, Amar

    2014-03-10

    A 38-year-old man presented with bilateral breast swelling, along with pain and redness for 7 days. Bilateral axillary nodes were also palpable; which were multiple and discrete. A provisional diagnosis of bilateral breast abscess was made with suspicion of underlying malignancy. Incision and drainage through subareolar incision was performed and the adjoining tissue was excised and sent for histopathological examination.

  17. Bilateral Breast Abscess Caused by E. coli in a Non-lactating Woman: A Rare Case.

    PubMed

    Şimşek, Gürcan; Gündeş, Ebubekir; Tekin, Şakir; Tavlı, Şakir

    2014-07-01

    Breast abscess usually occurs during lactation and the responsible organism is often S. Aureus . Breast abscess in non-lactating women is extremely rare and limited data is available in the literature regarding this entity. In our study, a 36-year-old non-lactating female patient who developed bilateral breast abscess due to E. coli infection without any predisposing factors has been discussed in light of the literature.

  18. Cavernosal Abscess due to Streptococcus Anginosus: A Case Report and Comprehensive Review of the Literature

    PubMed Central

    Dugdale, Caitlin M.; Tompkins, Andrew J.; Reece, Rebecca M.; Gardner, Adrian F.

    2013-01-01

    Corpus cavernosum abscesses are uncommon with only 23 prior reports in the literature. Several precipitating factors for cavernosal infections have been described including injection therapy for erectile dysfunction, trauma, and priapism. Common causal organisms include Staphylococcus aureus, Streptococci, and Bacteroides. We report a unique case of a corpus cavernosum abscess due to proctitis with hematological seeding and review the literature on cavernosal abscesses. PMID:24917758

  19. Project ARGO: Gas phase formation in simulated microgravity

    NASA Technical Reports Server (NTRS)

    Powell, Michael R.; Waligora, James M.; Norfleet, William T.; Kumar, K. Vasantha

    1993-01-01

    The ARGO study investigated the reduced incidence of joint pain decompression sickness (DCS) encountered in microgravity as compared with an expected incidence of joint pain DCS experienced by test subjects in Earth-based laboratories (unit gravity) with similar protocols. Individuals who are decompressed from saturated conditions usually acquire joint pain DCS in the lower extremities. Our hypothesis is that the incidence of joint pain DCS can be limited by a significant reduction in the tissue gas micronuclei formed by stress-assisted nucleation. Reductions in dynamic and kinetic stresses in vivo are linked to hypokinetic and adynamic conditions of individuals in zero g. We employed the Doppler ultrasound bubble detection technique in simulated microgravity studies to determine quantitatively the degree of gas phase formation in the upper and lower extremities of test subjects during decompression. We found no evidence of right-to-left shunting through pulmonary vasculature. The volume of gas bubble following decompression was examined and compared with the number following saline contrast injection. From this, we predict a reduced incidence of DCS on orbit, although the incidence of predicted mild DCS still remains larger than that encountered on orbit.

  20. Microbial consortia controlling biogenic gas formation in the Qaidam Basin of western China

    NASA Astrophysics Data System (ADS)

    Shuai, Yanhua; Zhang, Shuichang; Grasby, Stephen E.; Hou, Weiguo; Chen, Zhuoheng; Huang, Ling; Kui, Mingqing; Xu, Yirui; Wang, Yang

    2016-08-01

    Knowledge of what controls the activity of subsurface microbial communities is critical for assessing and managing biogenic methane resources. In this study, 19 formation waters and five gas samples were collected at depths of 800 to 1900 m from Quaternary biogenic gas fields of the Qaidam Basin, China. The formation waters were brines with chloride (Cl) concentrations from 1200 to 2700 mM. Bacterial 16S rRNA gene copies ranged from 3.75 × 104 to 2.23 × 106 copies mL-1 of water, and those of archaea ranged from 2.44 × 103 to 4.66 × 107 copies mL-1 of water. Both bacterial and archaea 16 s rRNA gene copies were negatively correlated with Cl concentration. The microbial community structure differed significantly depending on Cl concentrations. At high Cl waters (>1800 mM), the microbial community showed a halophilic signature made up of several abundant taxonomic groups within Firmicules, γ-Proteobacteria, and methylotrophic Methanosarcinales. At low Cl, Firmicules and hydrogenotrophic methanogens were dominant members. The proportion of inferred hydrogenotrophic methanogens decreased from 89% to 14% of total archaeal reads with increasing Cl concentration; in contrast, methylotrophic species increased from 11% to 85%. Given that the proportion of hydrogenotrophic species was positively correlated with the archaeal gene abundances, we suggest that Cl concentrations primarily constrain the activity of archaea catalyzing H2 reduction of CO2. Our results show that dilution of formation waters is critical in the process of biogenic gas formation, suggesting that an engineered decrease in Cl concentrations may induce methanogenesis as a potential method to increase gas reserves in such areas in the future.

  1. Lateral orbitotomy for treatment of an orbital abscess in a dog.

    PubMed

    Vallefuoco, R; Molas, C; Moissonnier, P; Chahory, S

    2014-10-01

    A two-year-old Jack Russell terrier was diagnosed with a retrobulbar abscess and orbital cellulitis. The diagnosis was confirmed by ultrasound, magnetic resonance imaging examination and ultrasound-guided fine-needle aspiration. Transoral ventral drainage was attempted but was unsuccessful. The abscess was successfully treated by open drainage through a lateral orbitotomy. Despite the exposure of the orbital structures, the orbital soft tissues healed by second intention without further complications. The open drainage was well tolerated and resulted in immediate reduction of inflammation and pain, allowing a quick recovery. This report describes the diagnosis and, surgical management and the long-term (3 years) follow-up of an unusual case of orbital abscess associated with diffuse periorbital cellulitis successfully treated by open drainage through a lateral orbitotomy. © 2014 British Small Animal Veterinary Association.

  2. Minimally invasive image-guided keyhole aspiration of cerebral abscesses.

    PubMed

    Meng, Xiang-Hui; Feng, Shi-Yu; Chen, Xiao-Lei; Li, Chong; Zhang, Jiashu; Zhou, Tao; Jiang, Jinli; Wang, Fuyu; Ma, Xiaodong; Bu, Bo; Yu, Xin-Guang

    2015-01-01

    Despite the low incidence of brain abscesses in Western nations (1-2%), the incidence in developing countries is as high as 8%. We evaluate a minimally invasive image-guided keyhole aspiration of cerebral abscesses and compare it with a series of cases treated with surgical excision. 23 patients (20 male and 3 female, aged 7-67 years) underwent image-guided burr hole aspiration of single or multiple cerebral abscesses. Patient characteristics, perioperative, and postoperative data were analyzed and compared with a second group of 22 patients (14 male and 8 female, aged 12-72) treated for cerebral abscesses with open surgical excision. In all cases, the surgical procedure was performed successfully without complication. 8 of the 23 aspiration cases were performed with the aid of iMRI. A comparison of patient demographics, duration of hospital stay, duration of antibiotic therapy, postoperative neurological recovery time, intraoperative blood loss, operative duration, length of incision, postoperative fever, repeat surgery, and mortality was performed between the aspiration and excision groups. Intraoperative blood loss, operative duration, length of incision, and postoperative fever were all significantly reduced in the aspiration group. Though, duration of hospital stay and antibiotic therapy and postoperative neurological recovery time were all increased in the aspiration group, and statistical significance was observed in all except the duration of hospital stay. This technique is a feasible and comparable minimally invasive alternative to open surgical excision and may provide reduced intraoperative blood loss, shortened operative duration, improved cosmetic outcomes, and a lessened incidence of postoperative fever.

  3. Formation and coalescence of nanobubbles under controlled gas concentration and species

    NASA Astrophysics Data System (ADS)

    Li, Chenliang; Zhang, A.-Man; Wang, Shiping; Cui, Pu

    2018-01-01

    Using molecular dynamics simulations, the effects of gas concentration and species on the coalescence and growth of nanobubbles were systematically investigated. With increasing gas concentration, not only surface nanobubbles but also bulk nanobubbles are formed. The bulk nanobubble in water is less explored so far. Here, its coalescence, stability, movement trajectory and velocity are discussed. A comparison of the motion and coalescence of the bulk nanobubble to the surface nanobubble, directly demonstrates that the three-phase contact line plays a crucial role for surface nanobubble stability. Compared with the bubble size, the distance between surface nanobubbles is a more important factor to decide the merging order among three nanobubbles. The study also shows that three factors including the oversaturated gas concentration, the distance between surface nanobubbles, and the stronger solid-gas interactions influence the formation of the gas-enrichment layer at the solid-liquid interface. The result has an important significance to enhancing the boundary slip due to the presence of nanobubbles.

  4. Pitfalls of CT for deep neck abscess imaging assessment: a retrospective review of 162 cases.

    PubMed

    Chuang, S Y; Lin, H T; Wen, Y S; Hsu, F J

    2013-01-01

    To investigate the diagnostic value of contrast-enhanced computed tomography (CT) for the prediction of deep neck abscesses in different deep neck spaces and to evaluate the false-positive results. We retrospectively analysed the clinical charts, CT examinations, surgical findings, bacteriology, pathological examinations and complications of hospitalised patients with a diagnosis of deep neck abscess from 2004 to 2010. The positive predictive values (PPV) for the prediction of abscesses by CT scan in different deep neck spaces were calculated individually on the basis of surgical findings. A total of 162 patients were included in this study. All patients received both intravenous antibiotics and surgical drainage. The parapharyngeal space was the most commonly involved space. The overall PPV for the prediction of deep neck abscess with contrast-enhanced CT was 79.6%. The PPV was 91.3% when more than one deep neck space was involved but only 50.0% in patients with isolated retropharyngeal abscesses. In the false-positive group, cellulitis was the most common final result, followed by cystic degeneration of cervical metastases. Five specimens taken intra-operatively revealed malignancy and four of these were not infected. There are some limitations affecting the differentiation of abscesses and cellulitis, particularly in the retropharyngeal space. A central necrotic cervical metastatic lymph node may sometimes also mimic a simple pyogenic deep neck abscess on both clinical pictures and CT images. Routine biopsy of the tissue must be performed during surgical drainage.

  5. Primary tuberculosis of the breast manifested as abscess: a rare case report.

    PubMed

    Gupta, Samita; Singh, Vikram J; Bhatia, Gaurav; Dhuria, Kshitiz

    2014-01-01

    Primary breast tuberculosis is a rare entity. We are reporting a case of primary breast tuberculosis, which presented as breast abscess. On histopathology, it was diagnosed as breast tuberculosis. Aspiration cytology was not done due breast abscess. Patient was put on anti-tubercular drugs. In follow up, after 3 months patient condition was improved.

  6. A Model for the Onset of Self-gravitation and Star Formation in Molecular Gas Governed by Galactic Forces. I. Cloud-scale Gas Motions

    NASA Astrophysics Data System (ADS)

    Meidt, Sharon E.; Leroy, Adam K.; Rosolowsky, Erik; Kruijssen, J. M. Diederik; Schinnerer, Eva; Schruba, Andreas; Pety, Jerome; Blanc, Guillermo; Bigiel, Frank; Chevance, Melanie; Hughes, Annie; Querejeta, Miguel; Usero, Antonio

    2018-02-01

    Modern extragalactic molecular gas surveys now reach the scales of star-forming giant molecular clouds (GMCs; 20–50 pc). Systematic variations in GMC properties with galaxy environment imply that clouds are not universally self-gravitating objects, decoupled from their surroundings. Here we re-examine the coupling of clouds to their environment and develop a model for 3D gas motions generated by forces arising with the galaxy gravitational potential defined by the background disk of stars and dark matter. We show that these motions can resemble or even exceed the motions needed to support gas against its own self-gravity throughout typical galactic disks. The importance of the galactic potential in spiral arms and galactic centers suggests that the response to self-gravity does not always dominate the motions of gas at GMC scales, with implications for observed gas kinematics, virial equilibrium, and cloud morphology. We describe how a uniform treatment of gas motions in the plane and in the vertical direction synthesizes the two main mechanisms proposed to regulate star formation: vertical pressure equilibrium and shear/Coriolis forces as parameterized by Toomre Q ≈ 1. As the modeled motions are coherent and continually driven by the external potential, they represent support for the gas that is distinct from that conventionally attributed to turbulence, which decays rapidly and thus requires maintenance, e.g., via feedback from star formation. Thus, our model suggests that the galaxy itself can impose an important limit on star formation, as we explore in a second paper in this series.

  7. Quantifying Hydrate Formation in Gas-rich Environments Using the Method of Characteristics

    NASA Astrophysics Data System (ADS)

    You, K.; Flemings, P. B.; DiCarlo, D. A.

    2015-12-01

    Methane hydrates hold a vast amount of methane globally, and have huge energy potential. Methane hydrates in gas-rich environments are the most promising production targets. We develop a one-dimensional analytical solution based on the method of characteristics to explore hydrate formation in such environments (Figure 1). Our solution shows that hydrate saturation is constant with time and space in a homogeneous system. Hydrate saturation is controlled by the initial thermodynamic condition of the system, and changed by the gas fractional flow. Hydrate saturation increases with the initial distance from the hydrate phase boundary. Different gas fractional flows behind the hydrate solidification front lead to different gas saturations at the hydrate solidification front. The higher the gas saturation at the front, the less the volume available to be filled by hydrate, and hence the lower the hydrate saturation. The gas fractional flow depends on the relative permeability curves, and the forces that drive the flow. Viscous forces (the drive for flow induced from liquid pressure gradient) dominate the flow, and hydrate saturation is independent on the gas supply rates and the flow directions at high gas supply rates. Hydrate saturation can be estimated as one minus the ratio of the initial to equilibrium salinity. Gravity forces (the drive for flow induced from the gravity) dominate the flow, and hydrate saturation depends on the flow rates and the flow directions at low gas supply rates. Hydrate saturation is highest for upward flow, and lowest for downward flow. Hydrate saturation decreases with the flow rate for upward flow, and increases with the flow rate for downward flow. This analytical solution illuminates how hydrate is formed by gas (methane, CO2, ethane, propane) flowing into brine-saturated sediments at both the laboratory and geological scales (Figure 1). It provides an approach to generalize the understanding of hydrate solidification in gas

  8. MOLECULAR GAS AND STAR FORMATION IN NEARBY DISK GALAXIES

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Leroy, Adam K.; Munoz-Mateos, Juan-Carlos; Walter, Fabian

    2013-08-01

    We compare molecular gas traced by {sup 12}CO (2-1) maps from the HERACLES survey, with tracers of the recent star formation rate (SFR) across 30 nearby disk galaxies. We demonstrate a first-order linear correspondence between {Sigma}{sub mol} and {Sigma}{sub SFR} but also find important second-order systematic variations in the apparent molecular gas depletion time, {tau}{sub dep}{sup mol}={Sigma}{sub mol}/{Sigma}{sub SFR}. At the 1 kpc common resolution of HERACLES, CO emission correlates closely with many tracers of the recent SFR. Weighting each line of sight equally, using a fixed {alpha}{sub CO} equivalent to the Milky Way value, our data yield a molecularmore » gas depletion time, {tau}{sub dep}{sup mol}={Sigma}{sub mol}/{Sigma}{sub SFR}{approx}2.2 Gyr with 0.3 dex 1{sigma} scatter, in very good agreement with recent literature data. We apply a forward-modeling approach to constrain the power-law index, N, that relates the SFR surface density and the molecular gas surface density, {Sigma}{sub SFR}{proportional_to}{Sigma}{sub mol}{sup N}. We find N = 1 {+-} 0.15 for our full data set with some scatter from galaxy to galaxy. This also agrees with recent work, but we caution that a power-law treatment oversimplifies the topic given that we observe correlations between {tau}{sub dep}{sup mol} and other local and global quantities. The strongest of these are a decreased {tau}{sub dep}{sup mol} in low-mass, low-metallicity galaxies and a correlation of the kpc-scale {tau}{sub dep}{sup mol} with dust-to-gas ratio, D/G. These correlations can be explained by a CO-to-H{sub 2} conversion factor ({alpha}{sub CO}) that depends on dust shielding, and thus D/G, in the theoretically expected way. This is not a unique interpretation, but external evidence of conversion factor variations makes this the most conservative explanation of the strongest observed {tau}{sub dep}{sup mol} trends. After applying a D/G-dependent {alpha}{sub CO}, some weak correlations between {tau

  9. Spatially Resolved Dust, Gas, and Star Formation in the Dwarf Magellanic Irregular NGC 4449

    NASA Astrophysics Data System (ADS)

    Calzetti, D.; Wilson, G. W.; Draine, B. T.; Roussel, H.; Johnson, K. E.; Heyer, M. H.; Wall, W. F.; Grasha, K.; Battisti, A.; Andrews, J. E.; Kirkpatrick, A.; Rosa González, D.; Vega, O.; Puschnig, J.; Yun, M.; Östlin, G.; Evans, A. S.; Tang, Y.; Lowenthal, J.; Sánchez-Arguelles, D.

    2018-01-01

    We investigate the relation between gas and star formation in subgalactic regions, ∼360 pc to ∼1.5 kpc in size, within the nearby starburst dwarf NGC 4449, in order to separate the underlying relation from the effects of sampling at varying spatial scales. Dust and gas mass surface densities are derived by combining new observations at 1.1 mm, obtained with the AzTEC instrument on the Large Millimeter Telescope, with archival infrared images in the range 8–500 μm from the Spitzer Space Telescope and the Herschel Space Observatory. We extend the dynamic range of our millimeter (and dust) maps at the faint end, using a correlation between the far-infrared/millimeter colors F(70)/F(1100) (and F(160)/F(1100)) and the mid-infrared color F(8)/F(24) that we establish for the first time for this and other galaxies. Supplementing our data with maps of the extinction-corrected star formation rate (SFR) surface density, we measure both the SFR–molecular gas and the SFR–total gas relations in NGC 4449. We find that the SFR–molecular gas relation is described by a power law with an exponent that decreases from ∼1.5 to ∼1.2 for increasing region size, while the exponent of the SFR–total gas relation remains constant with a value of ∼1.5 independent of region size. We attribute the molecular law behavior to the increasingly better sampling of the molecular cloud mass function at larger region sizes; conversely, the total gas law behavior likely results from the balance between the atomic and molecular gas phases achieved in regions of active star formation. Our results indicate a nonlinear relation between SFR and gas surface density in NGC 4449, similar to what is observed for galaxy samples. Based on observations obtained with the Large Millimeter Telescope Alfonso Serrano—a binational collaboration between INAOE (Mexico) and the University of Massachusetts–Amherst (USA).

  10. [DIFFERENTIAL DIAGNOSIS OF TUMOROID-LIKE ABSCESS AND LUNG CANCER].

    PubMed

    Churylin, R

    2015-01-01

    The purpose of work is development and clarification of roentgenology displays of tumoroidea variant of abscess of lungs for differential diagnostics him with the cancer of lungs. Practically in most cases abscess of lungs there is a necessity of leadthrough of differential diagnostics with in a number of nosology forms, including with the cavernous form of peripheral cancer of lungs. The features of flow of roentgenologic picture of tumoroidea variant are resulted, alike symptoms, differ ences and signs which allow to set a correct diagnosis, are resulted, the value of follow-up of roent genologic research and use of computed tomography is underlined.

  11. "Klebsiella Pneumonia" Liver Abscess Syndrome: Case Presentation to a College Student Health Clinic

    ERIC Educational Resources Information Center

    Woll, Christopher; Spotts, P. Hunter

    2016-01-01

    The authors describe a case of "Klebsiella pneumoniae" liver abscess (KPLA) in a student presenting to a university student health center. The authors also provide a review of KPLA and invasive "Klebsiella pneumoniae" liver abscess syndrome (IKPLAS), including epidemiology, common clinical manifestations, standard diagnostic…

  12. Cervical spinal epidural abscess following acupuncture and wet-cupping therapy: A case report.

    PubMed

    Yao, Yindan; Hong, Wenke; Chen, Huimin; Guan, Qiongfeng; Yu, Hu; Chang, Xianchao; Yu, Yaoping; Xu, Shanhu; Fan, Weinv

    2016-02-01

    Report of an uncommon complication of acupuncture and wet cupping. A 54-year-old man presented with neck pain and fever. Magnetic resonance imaging of the cervical spine revealed an epidural abscess at C4 to T2. The symptoms related to epidural abscess resolved partially after treatment with antibiotics. Acupuncture and wet-cupping therapy should be taken into consideration as a cause of spinal epidural abscesses in patients who present with neck pain and fever. Furthermore, acupuncture and wet-cupping practitioners should pay attention to hygienic measures. Copyright © 2015 Elsevier Ltd. All rights reserved.

  13. Formation of new stellar populations from gas accreted by massive young star clusters.

    PubMed

    Li, Chengyuan; de Grijs, Richard; Deng, Licai; Geller, Aaron M; Xin, Yu; Hu, Yi; Faucher-Giguère, Claude-André

    2016-01-28

    Stars in clusters are thought to form in a single burst from a common progenitor cloud of molecular gas. However, massive, old 'globular' clusters--those with ages greater than ten billion years and masses several hundred thousand times that of the Sun--often harbour multiple stellar populations, indicating that more than one star-forming event occurred during their lifetimes. Colliding stellar winds from late-stage, asymptotic-giant-branch stars are often suggested to be triggers of second-generation star formation. For this to occur, the initial cluster masses need to be greater than a few million solar masses. Here we report observations of three massive relatively young star clusters (1-2 billion years old) in the Magellanic Clouds that show clear evidence of burst-like star formation that occurred a few hundred million years after their initial formation era. We show that such clusters could have accreted sufficient gas to form new stars if they had orbited in their host galaxies' gaseous disks throughout the period between their initial formation and the more recent bursts of star formation. This process may eventually give rise to the ubiquitous multiple stellar populations in globular clusters.

  14. Bilateral Breast Abscess Caused by E. coli in a Non-lactating Woman: A Rare Case

    PubMed Central

    Şimşek, Gürcan; Gündeş, Ebubekir; Tekin, Şakir; Tavlı, Şakir

    2014-01-01

    Breast abscess usually occurs during lactation and the responsible organism is often S. Aureus. Breast abscess in non-lactating women is extremely rare and limited data is available in the literature regarding this entity. In our study, a 36-year-old non-lactating female patient who developed bilateral breast abscess due to E. coli infection without any predisposing factors has been discussed in light of the literature. PMID:28331665

  15. Intra-abdominal abscess demonstrating an unusually large intra-abdominal pattern on an indium-111 leukocyte scan

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Black, R.R.; Fernandez-Ulloa, M.; ter Penning, B.

    1988-12-01

    Indium-111 WBC imaging of a patient with occult septicemia revealed a large focal pattern of radiopharmaceutical distribution within the abdominal cavity at 24 hours post radiopharmaceutical administration. This finding was felt to represent a large intra-abdominal abscess. A five liter peritoneal abscess was found at surgery. This case illustrates an unusual presentation of an intra-abdominal abscess.

  16. Scedosporium apiospermum causing brain abscess in a renal allograft recipient.

    PubMed

    Sharma, Amit; Singh, Divya

    2015-11-01

    Scedosporium apiospermum is the asexual form of a rare fungus Pseudallescheria boydii that is usually present in the soil, sewage and dirty water. In immunocompromised patients, it is a rare infection involving multiple organs. We present a case of renal allograft recipient who developed fever two weeks post renal transplant. He was initially found to have dengue fever. After five days, he became drowsy and developed right-sided hemiparesis. Magnetic resonance imaging of the brain revealed multiple irregular masses with associated edema consistent with fungal brain abscesses. Left parietal abscess was drained and he was started on voriconazole. His cyclosporine was stopped. Drained pus revealed fungal hyphae on potassium hydroxide stain and Scedosporium apiospermum on culture. Unfortunately, the patient died after five days. Scedosporium infections should be kept as a possibility in transplant recipients with disseminated infections, especially with a brain abscess. Despite antifungal therapy and surgical drainage, mortality rates are high.

  17. Local anticorrelation between star formation rate and gas-phase metallicity in disc galaxies

    NASA Astrophysics Data System (ADS)

    Sánchez Almeida, J.; Caon, N.; Muñoz-Tuñón, C.; Filho, M.; Cerviño, M.

    2018-06-01

    Using a representative sample of 14 star-forming dwarf galaxies in the local Universe, we show the existence of a spaxel-to-spaxel anticorrelation between the index N2 ≡ log ([N II]λ 6583/H α ) and the H α flux. These two quantities are commonly employed as proxies for gas-phase metallicity and star formation rate (SFR), respectively. Thus, the observed N2 to H α relation may reflect the existence of an anticorrelation between the metallicity of the gas forming stars and the SFR it induces. Such an anticorrelation is to be expected if variable external metal-poor gas fuels the star-formation process. Alternatively, it can result from the contamination of the star-forming gas by stellar winds and SNe, provided that intense outflows drive most of the metals out of the star-forming regions. We also explore the possibility that the observed anticorrelation is due to variations in the physical conditions of the emitting gas, other than metallicity. Using alternative methods to compute metallicity, as well as previous observations of H II regions and photoionization models, we conclude that this possibility is unlikely. The radial gradient of metallicity characterizing disc galaxies does not produce the correlation either.

  18. New particle formation in the fresh flue-gas plume from a coal-fired power plant: effect of flue-gas cleaning

    NASA Astrophysics Data System (ADS)

    Mylläri, Fanni; Asmi, Eija; Anttila, Tatu; Saukko, Erkka; Vakkari, Ville; Pirjola, Liisa; Hillamo, Risto; Laurila, Tuomas; Häyrinen, Anna; Rautiainen, Jani; Lihavainen, Heikki; O'Connor, Ewan; Niemelä, Ville; Keskinen, Jorma; Dal Maso, Miikka; Rönkkö, Topi

    2016-06-01

    Atmospheric emissions, including particle number and size distribution, from a 726 MWth coal-fired power plant were studied experimentally from a power plant stack and flue-gas plume dispersing in the atmosphere. Experiments were conducted under two different flue-gas cleaning conditions. The results were utilized in a plume dispersion and dilution model taking into account particle formation precursor (H2SO4 resulted from the oxidation of emitted SO2) and assessment related to nucleation rates. The experiments showed that the primary emissions of particles and SO2 were effectively reduced by flue-gas desulfurization and fabric filters, especially the emissions of particles smaller than 200 nm in diameter. Primary pollutant concentrations reached background levels in 200-300 s. However, the atmospheric measurements indicated that new particles larger than 2.5 nm are formed in the flue-gas plume, even in the very early phases of atmospheric ageing. The effective number emission of nucleated particles were several orders of magnitude higher than the primary particle emission. Modelling studies indicate that regardless of continuing dilution of the flue gas, nucleation precursor (H2SO4 from SO2 oxidation) concentrations remain relatively constant. In addition, results indicate that flue-gas nucleation is more efficient than predicted by atmospheric aerosol modelling. In particular, the observation of the new particle formation with rather low flue-gas SO2 concentrations changes the current understanding of the air quality effects of coal combustion. The results can be used to evaluate optimal ways to achieve better air quality, particularly in polluted areas like India and China.

  19. Clostridium septicum gas gangrene in the orbit: a case report.

    PubMed

    Fejes, I; Dégi, R; Végh, M

    2013-02-01

    Our report presents a case of Clostridium septicum gas gangrene in an unusual, orbital localization. The predisposing factors are typical: colon tumour and lymphatic malignancy. Most probably bacteria from the intestinal flora entered the bloodstream through the compromised intestinal wall and settled in the orbit resulting in the development of an abscess containing gas. At the site of the gas gangrene, an indolent B cell lymphoma was present. After surgery and antibiotic treatment, the patient healed from the C. septicum infection; but subsequently died as a consequence of the tumour.

  20. Lung abscess combined with chronic osteomyelitis of the mandible successfully treated with video-assisted thoracoscopic surgery.

    PubMed

    Arai, Hiromasa; Inui, Kenji; Watanabe, Keisuke; Watanuki, Kei; Okudela, Koji; Tsuboi, Masahiro; Masuda, Munetaka

    2015-04-01

    With the progress of antibiotic therapy, the mortality of lung abscess has been improved, and surgical intervention has declined. However, surgery is still required in selected cases that are intractable to antibiotic treatment. Video-assisted thoracoscopic surgery (VATS) is beneficial for treatment and/or diagnosis of pulmonary disease as it provides a less invasive surgical technique and reduces prolongation of post-operative recovery. However, the indication of VATS lobectomy for lung abscess is controversial as a result of particular complications, i.e. wet lung, intrapleural adhesion and ease of bleeding. We herein report a rare combination of lung abscess and osteomyelitis of mandible resulting from the same pathogen successfully treated with VATS lobectomy. We propose VATS lobectomy for lung abscess. This procedure might be the best treatment candidate for selected cases of lung abscess. © 2014 John Wiley & Sons Ltd.