The abnormal chest radiograph is often perplexing, but abnormal findings can be interpreted easily with a systematic and methodical approach. The companion cases presented this month highlights two basic, but often forgotten or confused findings that have...

The mediastinal lines visible at conventional radiography represent the interfaces between the mediastinum and adjacent lung parenchyma. Preservation, obliteration, thickening and distortion of these lines represent the key to detecting and localising mediastinal abnormalities on chest radiographs. The learning objectives of this review are to: illustrate ...

Thirty-five college athletes with lower leg pain underwent radiography and radionuclide studies to rule out a stress fracture. Their asymptomatic extremities and 13 pain-free athletes served as controls. Four main patterns were observed: (a) sharply marginated scintigraphic abnormalities and positive radiographs; (b) sharply marginated scintigraphic ...

We compared the chest radiographic findings of patients with pulmonary paragonimiasis in the Lao People's Democratic Republic (PDR) with a report from Korea. The clinical and radiological characteristics of 50 confirmed Laotian pleuropulmonary paragonimiasis patients were studied between March 2003 and June 2007. In 49 patients, the chest ...

/sup 99m/Technetium skeletal scintigraphy performed at the time of diagnosis was compared with pain and radiographs in 24 children with acute lymphocytic leukemia. Localized intense uptake of the labeled compound in one or several metaphyses and increased uptake in diaphyses were typical findings by scintigraphy. The skeleton of each child was subdivided ...

OBJECTIVE: To determine whether workers in Ontario who had been exposed to silica dust and who have radiographic abnormalities are at increased risk of lung cancer. DESIGN: Cohort and case-control studies of rates of death from lung cancer and cancer incidence rates; data were obtained from the Ontario Silicosis Surveillance Registry. Follow-up was through ...

One thousand patients had both CT of the head and a conventional skull series of radiographs. Radiographic findings were abnormal in 250 patients (25%), but only 64 patients (6.4%) had diagnostically significant abnormalities at radiography that were not detected by CT. If the 163 patients who ...

Primitive ducts, tubules, and cysts often communicate with the pelvocalyceal systems of dysplastic kidneys, and may sometimes be filled in retrograde fashion with radiographic contrast material. Their size, shape, and distribution provide a variable radiographic appearance that must be distinguished from other causes of intrarenal reflux. When reflux ...

Patients with esophageal symptoms following drug ingestion underwent double-contrast upper gastrointestinal studies, and radiographic findings are described. Superficial esophageal ulceration and subtle mucosal abnormalities, which have not been seen on single-contrast radiographs, were confirmed on double-contrast ...

Herein we describe the thoracic radiographic appearance of confirmed pulmonary lymphoma. Patients with thoracic radiographs and cytologically or histologically confirmed pulmonary lymphoma were sought by contacting American College of Veterinary Radiology members. Seven cats and 16 dogs met the inclusion criteria, ranging in age from 4 to 15 years. Method ...

The authors review the normal anatomy and discuss characteristic findings of soft-tissue abnormalities of the external auditory canal (EAC). The indications for computed tomography (CT) of the temporal bone have been significantly expanded with the inclusion of soft-tissue abnormalities of the external ear and the auditory canal. CT ...

Radionuclide images and skeletal radiographs of 51 patients with multiple myeloma were compared to assess the sensitivity of scintigraphy in detecting radiographically evident disease. Comparable studies were available for 562 sites. The radionuclide image was relatively insensitive in detecting myeloma; it failed to show ...

Bone scintigraphy and radiography were performed in seven children with back pain. Six of the children with radiographic evidence of a pars interarticularis defect also had abnormal scintigrams. Increased uptake of the bone imaging agent occurred at six of the ten sites of radiographic pars interarticularis defects, implying increased ...

Bone scintigraphy was used to evaluate 34 patients with the physical findings and history of stress fracture of the lower extremity. Of the 34, 21 had abnormal studies, 11 involving the femoral neck, 9 the tibia, and 1 the femur. All of these had abnormal scintiscans prior to or at the time of the appearance of ...

Back pain is common in horses, but there has been no large-scale in-depth study describing radiographic changes of the spinous processes, the relationship between radiographic and scintigraphic findings, and the effect of size, age, breed, or discipline. The objectives were to investigate the frequency of occurrence in horses with ...

The report reflects the results of a study that was conducted to identify the indications recorded by physicians ordering skull, chest, and upper gastrointestinal tract (UGI) x-ray examinations. These indications were then statistically analyzed to determine criteria associated with a high yield of abnormal radiographic findings.

Urography was performed on 153 patients with urinary schistosomiasis. All urograms were abnormal. The most frequent finding (116 of 128 examinations) was postvoiding retention of urine; 93 patients had obstruction. Ureteral stenosis, ureterolithiasis, and...

The book illustrates and discusses general principles including bone growth, dysplasia, trauma, infection, positional abnormalities, and metabolic disease, followed by detailed consideration of each region of the extremities and then the trunk. Those radiographic findings of orthopedic importance are emphasized, with images selected ...

Inflammation in the paranasal sinus is often observed in seasonal allergic rhinitis or with colds, but is also an indication for odontogenic tumors, carcinoma of the maxillary sinus or a maxillary cyst. The detection of those findings in dental panoramic radiographs is not difficult for radiologists, but general dentists may miss the ...

A multilayered patella is a characteristic radiographic finding of recessive multiple epiphyseal dysplasia (rMED) caused by DTDST mutations. However it has been recently reported in a dominant MED case with a COL9A2 mutation. We report on a new radiographic patellar finding in a patient with pseudoachondroplasia ...

Radiographic identification of an abnormal lesion in the esophagus routinely occurs during workup of patients with symptomatic dysphagia. Leiomyoma is the most common benign finding; however, plexiform leiomyoma, a distinctive but rare variant, follows an unusual pattern of growth which can be a challenging surgical resection. A review ...

Abnormalities of the posterior arch, including congenitally absent cervical pedicle and cervical spondylolysis, are rare entities that are usually found incidentally on neck radiographs. It is important to recognize these characteristic radiological features because their radiographic appearance may cause them to be confused with more ...

Ventilation-perfusion (V-P) lung scans obtained in 114 patients in a screening program for the early detection of lung cancer were reviewed, and abnormalities were correlated with radiographic and surgical findings. Eighty-seven patients eventually had a tissue diagnosis of carcinoma; 65 (75%) had a perfusion defect and 56 (67%) had a ...

The femoral heads of 38 normal and 20 abnormal patients were evaluated using magnetic resonance imaging (MRI). Anatomic structures can be identified on all scanning sequences if the examinations are technically satisfactory, although images with the best clarity and detail are obtained by using short echo times. MRI of patients with ischemic necrosis revealed areas of low ...

ObjectiveThe purpose of this study was to evaluate the chest radiographic and CT findings of novel influenza A (H1N1) virus infection in children, the population that is more vulnerable to respiratory infection than adults.Materials and MethodsThe study population comprised 410 children who were diagnosed with an H1N1 infection from August 24, 2009 to ...

Congenital generalized lipodystrophy (CGL) is a rare genetic disease characterized by the absence of body fat from birth. Focal bone lesions have also been reported, but their pathophysiology is poorly understood. To characterize skeletal abnormalities further in 3 patients with CGL, we employed whole-body radiographic skeletal surveys, magnetic resonance ...

Systemic lupus erythematosus in the elderly has a different clinical and serologic course from that in young patients. Radiographic findings in patients in whom the diagnosis was made after age 50 were compared with findings in younger patients to see if the radiologic patterns are also different. The only significant ...

The results of ventilation-perfusion (V-Q) imaging and pulmonary angiography were retrospectively analyzed in 146 patients with suspected pulmonary embolism (PE) to define the frequency of PE associated with various scintigraphic patterns. When the radionuclide images demonstrated at least two moderate-sized or one large area of V-Q mismatch, the probability of PE was 92%. However, only one of ...

Although decreased hip range of motion has been detected in many soccer players with noncontact anterior cruciate ligament (ACL), it is not clear whether it is associated with bone spurs, capsular soft tissue stiffness or both. Our aim was to investigate abnormal radiographic findings in soccer players with limited hip range of motion ...

AbstractPharyngocutaneous fistulae are a common complication after total laryngectomy. Our study evaluates the correlation of postoperative radiographic swallowing studies and clinical symptoms. We also propose a grading system to classify leaks radiographically. The records of 45 patients who underwent total laryngectomy were retrospectively reviewed. All ...

A case of primary intestinal lymphangiectasia is presented in which multiple blind peroral jejunal biopsies were unable to document any abnormality, despite strongly suggestive clinical history and radiographic findings. Endoscopically directed biopsy was necessary to document the characteristic pathologic lesion. This report documents ...

Shows abnormal radiolucencies in a series of panographic radiographs, discussing etiology and treatment.

In recent years, noninvasive evaluation of Caroli's disease has been demonstrated by computed tomography, ultrasonography, and nuclear scintigraphy. Confirmation of Caroli's disease requires invasive procedures such as percutaneous transhepatic cholangiography or endoscopic retrograde cholangiography. All of the techniques give valuable information making it easier to diagnose ...

The radiographic findings on barium enema in 42 patients with endometriosis were reviewed and correlated with those at surgical and laparoscopic examination. Radiographic abnormalities were detected in 27 patients. In nine patients, purely extrinsic mass effect was identified; bowel wall involvement in these ...

Background and objectives: Management of incidental renal artery and kidney abnormalities in patients undergoing computed tomography scans is a clinical challenge because their frequency in healthy subjects has not been precisely estimated. Therefore, the prevalence and management of these abnormalities were determined among a large cohort of potential ...

Users of CT pulmonary angiography recognized that ancillary findings on CT pulmonary angiograms of patients in whom PE was excluded often provided useful information.(1-5) Some ancillary findings on the CT angiogram, such as peripheral wedge-shaped densities, may suggest the need for ...

A 7 mo old, 2.4 kg, intact female kitten was evaluated for an inability to walk after falling out of the owner's arms. Diagnostic testing abnormalities included hypocalcemia, low ionized calcium, and elevated intact parathyroid hormone concentration. The 25-hydroxyvitamin D level was normal. Radiographic abnormalities included ...

The aim of this study was to determine the radiologic findings associated with admission to the intensive care unit (ICU) and the development of acute respiratory distress syndrome (ARDS) in patients with pH1N1 infection. One hundred and four patients (15-96�years) with laboratory-confirmed pH1N1 infection seen at the Emergency Department from July to December 2009 who ...

Possible correlations were investigated between the clinical and urodynamic findings in 77 neutered female dogs with urinary incontinence refractory to standard medical management. The clinical data used in the analysis were age, bodyweight, breed, the characteristics of the dribbling of urine and whether it developed before or after neutering, the type of response to previous ...

Between 1974 and 1989 we prospectively observed 530 patients with brucellosis. The findings for 62 patients (42 males and 20 females; mean age, 34.7 years) with 63 episodes in which the sacroiliac joint was involved (the most frequent osteoarticular location [11.7%]) were analyzed. Ten of the older patients (mean age, 55.3 years) had concomitant spondylitis. Systemic symptoms ...

Lumbar spine radiographs and radionuclide images were compared and correlated with clinical histories of 20 athletes with low back pain. Radiographs were classified as: Normal (Type 0); showing a healing stress fracture (an irregular lucent line) with sclerosis (Type I); as an evolving or healed stress injury with either sclerosis, narrowing, or ...

The radiographs and charts of 18 patients were reviewed to determine if sacroiliac joint tomography clarified the equivocal or clinically inconsistent findings of other imaging procedures. In six of eight patients with proven sacroiliitis, tomography detected joint erosions or sclerosis that were not detected on routine pelvis ...

Fourteen gallium scans were obtained in 11 patients suspected of having amiodarone lung toxicity on the basis of clinical findings, pulmonary function tests, and chest radiographs. All 11 patients had abnormal scans. Gallium accumulates in various inflammatory and neoplastic lesions, but despite this nonspecificity, the ...

A case of indolent carcinoma of the breast metastatic to bone is presented. Radiographic findings showed dramatic osteoblastic activity throughout the skeleton, but the bone scan was mildly abnormal in only one of these areas. A superscan appearance was excluded by a whole-body retention study.

Extraocular muscle enlargement can result from a wide variety of disease processes. Although observations of the pattern of muscle involvement, muscle shape and enhancement, superior ophthalmic vein and cavernous sinus enlargement, sinus and bony wall abnormalities, and proptosis can lead to a limited differential diagnosis in some cases, no radiographic ...

Sixty-four consecutive patients were studied for possible reflex sympathetic dystrophy syndrome (RSDS). They were divided into five groups, based upon specific clinical criteria, and the radiographic and scintigraphic findings in each group were examined. Osteoporosis was the most common radiographic abnormality. ...

/sup 99m/Tc pyrophosphate studies in 21 children with acute hematogenous osteomyelitis were compared with radiographic, clinical and surgical findings. Eleven /sup 99m/Tc studies revealed obvious abnormalities, four showed subtle abnormalities, two were misleading, and four were normal. No consistent explanation ...

These regulations concern chest X-ray examinations. Definitions are followed by provisions concerning chest radiographs of miners and new miners; plans and approval of plans for these examinations; transfer of affected miners to less dusty areas; occupational history questionnaire and miners' identification documents; specifications for performing chest X-ray ...

Background. Contrary to what may be expected, finding abnormalities in complex images like pulmonary nodules in chest radiographs is not dominated by time-consuming search strategies but by an almost immediate global interpretation. This was already known in the nineteen-seventies from experiments with briefly flashed chest ...

Radiophosphate bone scans readily disclosed osteoid osteomas in 20 symptomatic patients, including nine patients whose radiographic findings had been negative. In five of the nine patients adjuvant radiogallium imaging was performed, and four showed a disproportionately low uptake relative to radiophosphate. When this occurs, osteoid osteoma can be ...

A 1-year-old half-Arabian colt was referred for evaluation of a cranial cervical abnormality. Physical examination revealed the left wing of the atlas to be more ventral than the right wing. A head tilt, with the pole deviated to the left, was present because of the malpositioned atlas. Neurologic examination identified symmetrical weakness, ataxia, and proprioceptive deficits ...

Despite the increased use of CT imaging, chest radiography remains a very important diagnostic modality in the evaluation of lung parenchymal and mediastinal diseases, providing a vast amount of useful information. This information is generally derived from the relationships among the normal anatomic structures of the mediastinum, pleura, and lungs, which represent the basis of the "cardiac ...

The purpose of this article is to describe the clinical features of otodental syndrome. A 9-year-old boy presented with dental abnormalities that have been described for otodental syndrome. The characteristic findings included large bulbous crowns in canine and molar teeth of both dentitions, deep vertical enamel fissures separating the cusps of affected ...

For many years, there were no guidelines for evaluating patients with chronic neck pain. However, in the past 15 years, considerable research has led to recommendations regarding whiplash-associated disorders. This article summarizes the American College of Radiology Appropriateness Criteria for chronic neck pain. Imaging plays an important role in evaluating patients with chronic neck pain. Five ...

A mother and daughter with clinical and radiographic findings typical of the Kniest syndrome are reported. It is apparent that this syndrome is dominantly inherited and that sporadic cases may represent fresh mutations. Abnormally high keratan sulfate excretion was found, indicating that the Kniest syndrome is a ...

A suprahepatic, anteriorly displaced gallbladder in association with an inverted liver is an extremely rare congenital anomaly. We report the clinical and radiologic findings associated with a 78-year-old woman presenting with shortness of breath, desaturation, hypercapnia and hypoxemia. An abnormal chest radiograph demonstrated right ...

The chest radiograph is the basic tool for identifying occupational and environmental lung diseases; however, its sensitivity and specificity for the diagnosis of occupational and environmental lung diseases are low. High-resolution CT is the optimal method of recognizing parenchymal abnormalities in occupational and environmental disease. With the ...

Fibrosing alveolitis and bronchiolitis obliterans are two of the many pulmonary manifestations of the connective tissue disorders. When shortness of breath is the main complaint, it is often difficult to diagnose the individual causative lesion from the clinical examination, lung function tests, and chest radiographic findings. In such cases high ...

This atlas was compiled to provide the neophyte as well as the experienced radiologist and the nuclear medicine physician with a reference on normal skeletal scintigraphy as an aid in distinguishing normal variations in skeletal uptake from abnormal findings. Each skeletal scintigraph is labeled, and utilizing an identical scale, a relevant skeletal ...

The potentially fatal interstitial pneumonia of Pneumocystis carinii is a frequent opportunistic invader of patients treated for malignancy with immunosuppressive and cytotoxic agents. Generalized Ga-67 pulmonary localization which is markedly disproportionate to the clinical and radiographic findings has led to earlier diagnoses by open lung biopsy in ...

Skeletal growth is a dynamic process. A knowledge of the structure and function of the normal growth plate is essential in order to understand the pathophysiology of abnormal skeletal growth in various diseases. In this well-illustrated article, the authors provide a radiographic classification of abnormal growth plates and discuss ...

This book provides an organizational arrangement by radiographic abnormalities which is particularly valuable in those cases in which the diagnosis is not clearly established and the physician is faced with an abnormality which may be pivotal to the diagnosis. The book includes the newer techniques of computed tomography and ...

Smith-Magenis syndrome (SMS) is a multiple congenital anomaly, mental retardation (MCA/MR) syndrome associated with deletion of chromosome 17 band p11.2. As part of a multi-disciplinary clinical, cytogenetic, and molecular approach to SMS, detailed clinical studies including radiographic neurologic, developmental, ophthalmologic, otolaryngologic, and audiologic evaluations ...

In 1940, the first report appeared describing a pulmonary disorder associated with occupational exposures in the cemented tungsten carbide industry. The disease, known as "hard metal disease," has subsequently been characterised in detail and comprises a wide range of clinical signs and symptoms. In this report, clinical findings in a group of 41 hard metal workers employed ...

Diatomaceous earth is a noncrystalline form of silica; in processing, calcining leads to formation of cristobalite, a form of crystalline silica. Four hundred ninety-two currently employed diatomaceous earth workers in a large mine and processing facility had chest radiographs performed and interpreted by the International Labour Office (ILO) system. Two hundred sixty-seven ...

Erlenmeyer flask bone deformity (EFD) is a long-standing term used to describe a specific abnormality of the distal femora. The deformity consists of lack of modeling of the di-metaphysis with abnormal cortical thinning and lack of the concave di-metaphyseal curve resulting in an Erlenmeyer flask-like appearance. Utilizing a literature review and cohort ...

Mantle irradiation is often part of the treatment for Hodgkin's disease. Localized pneumonitis and fibrosis are well-known sequelae of this treatment. We report nine patients with unusual thoracic radiographic findings following treatment for Hodgkin's disease. All nine had mediastinal widening. Seven of these patients received combined ...

The aim of our study was to analyze the imaging findings of femoroacetabular impingement (FAI). Eight consecutive patients [age range, 19-46 years (mean, 28.6 years); M/F ratio=7:1] who underwent operation for FAI were analyzed. We analyzed bump, acetabular retroversion and protrusion, and osteoarthritis in the radiographs. In MR arthrography, we analyzed ...

BACKGROUND--Several chest radiographic abnormalities have been described in pulmonary sarcoidosis, but a diffuse ground glass pattern is extremely rare. METHODS--The chest radiographs of more than 1600 patients with sarcoidosis evaluated in our service between 1976 and 1991 were reviewed to determine the prevalence of this pattern on ...

BackgroundMore than half of all health care workers (HCWs) in high TB-incidence, low and middle income countries are latently infected with tuberculosis (TB). We determined radiological lesions in a cohort of HCWs with latent TB infection (LTBI) in India, and determined their association with demographic, occupational and T-cell immune response variables.MethodologyWe obtained chest ...

Hip resurfacing arthroplasty is an increasingly common procedure for osteoarthritis. Conventional radiographs are used routinely for follow-up assessment, however they only provide limited information on the radiological outcome. Various complications have been reported in the scientific literature although not all are fully understood. In an effort to investigate problematic ...

This study was undertaken to determine the effect of chronicity of infection on the sensitivity of In-111-labeled leukocyte scanning. A total of 332 scans on 290 patients were reviewed retrospectively. The diagnosis of infection was based on culture results and other laboratory data, autopsy findings, radiographic studies, and clinical course. Duration of ...

Historically, radiographical identification has been done by comparing conventional antemortem and postmortem X-ray images. The advent of new technologies such as multislice computed tomography (MSCT) is making traditional antemortem examination increasingly less frequent. The authors present the results of MSCT study of 35 corpses, which demonstrated features potentially ...

Plain chest radiographs of 788 Pilbara iron-ore miners from Western Australia have been examined by two independent observers for evidence of pneumoconiosis. The prevalence of any radiographic abnormality (a profusion grade of 0/1 or greater on the International Labour Office [ILO] scale) was 6.7% for Reader 1 and 9.9% for Reader 2. ...

Eleven common radiographic signs of mediastinal hemorrhage were evaluated by two observers for the following three patient groups: normal subjects, patients with mediastinal hemorrhage and no arterial injury, and patients with major thoracic arterial injury. Supine chest radiographs were studied in all cases. Four major conclusions can be made based upon ...

Eighteen patients with multiple myeloma were studied using radiographs of the skeletal system, technetium phosphate bone scans, and gallium-67 scintigraphy. A total of 94 sites were used as the basis for comparison in these 18 patients. Radiographic sensitivity on a patient basis was 94%, and was 82% on a site basis. Bone scans were positive in 78% of ...

A cross-sectional study of 788 male employees of an aluminum production company examined the relationship of radiographic abnormalities to smoking and dust exposure from the mining and refining of bauxite to alumina. Among the aluminas produced were low temperature range transitional forms. The present analyses were limited to nonsmokers and current ...

Laryngocele is an uncommon disease defined as an abnormal dilatation or herniation of the laryngeal saccule, forming an air-filled cavity. Radiologic evaluation of a suspected laryngocele generally includes plain radiographs, CT, and MRI. There are very few reports in the literature on sonographic findings of laryngocele. Trumpet ...

Sixty-eight patients with various types of gastritis, 23 patients with normal stomachs, and four patients with other gastric diseases were examined in a prospective study to assess the sensitivity and specificity of single-contrast (SC) and double-contrast (DC) upper gastrointestinal examinations in the evaluation of gastritis. All patients underwent endoscopy with biopsy followed first by DC and ...

With the general improvement in environmental controls in workplaces where asbestos is used, an increasing number of workers are seen who exhibit isolated pleural plaques. The question as to whether these are associated with respiratory impairment independently of parenchymal disease remains unresolved. The question was reinvestigated using quantitative gallium-67 lung scanning to take into ...

The report discusses six abnormal occurrences, none involving a nuclear power plant. There were five abnormal occurrences at NRC licensees: (1) deficiencies in brachytherapy program; (2) a radiation overexposure of a radiographer; (3) a medical diagnostic...

Unsuspected sacral fractures may present with confusing clinical, radiographic, and scintigraphic findings. Sacral fractures were diagnosed by radionuclide bone scans in 23 patients, most of whom were osteopenic and had only minor or no trauma. Symptoms usually consisted of low back pain, sometimes with radiculopathy, but some of the patients were ...

We conducted a 15-year retrospective cohort study to determine the prevalence of restrictive lung disease prior to allogeneic hematopoietic cell transplant (HCT), and to assess whether this was a risk factor for poor outcomes. 2545 patients were eligible for the analysis. Restrictive lung disease was defined as a total lung capacity (TLC) <80% of predicted normal. Chest x-rays and /or computed ...

A patient with thyroid carcinoma had abnormal accumulation of I-131 in the areas of both feet and hands on whole body scan. The sites of abnormal accumulation of I-131 were similar to those on bone scintigraphy. The radiographic examination of the lesions showed characteristic findings of rheumatoid arthritis, and ...

Because of their rarity, primary malignant tumors of the heart continue to evade clinical preoperative diagnosis. In five cases of malignant heart tumor that were reviewed from the diagnostic point of view, the clinical symptoms and radiographic abnormalities were found to be similar to those produced by more common heart diseases. The diagnosis of ...

Eleven HIV-infected and 30 otherwise healthy children hospitalized for H1N1 influenza were studied. Leukopenia was recorded in 64% of HIV-infected and in 20% of healthy children (P = 0.01). Chest radiograph was abnormal in 18 (46%) children. Interstitial pneumonia was more frequent in HIV-positive children and consolidation was more frequent in ...

ObjectivesX-linked hypohidrotic ectodermal dysplasia (XLHED) occurs in several species, including humans, mice, cattle and dogs. The orofacial manifestations of ectodermal dysplasia in humans and mice have been extensively studied, but documentation of dental abnormalities in dogs is lacking. The current study describes the results of clinical and ...

Clinical manifestations of heartworm disease in cats are variable; most cats seem to tolerate the infection well for extended periods. Heartworm-infected cats may undergo spontaneous self-cure due to the natural death of parasites without any symptomatology, or they may suddenly show dramatic and acute symptoms. Sudden death in apparently healthy cats is not a rare event. Thoracic ...

Golden Retriever muscular dystrophy is an inherited, degenerative myopathy due to the absence of dystrophin and is used as a model of Duchenne muscular dystrophy of young boys. This report describes the radiographic abnormalities of Golden Retriever muscular dystrophy in 26 dogs. The thoracic abnormalities included diaphragmatic ...

Review of 1,441 bone scans performed on 242 breast cancer patients without known skeletal metastases identified 239 scans with new abnormalities. Findings on 54 of these 239 scans (23%) represented bone metastases. The proportion of scans reflecting metastases, grouped by the number of new abnormalities, was: (1) 20/182 (11%); (2) 9/26 ...

A 78-year-old man was referred to our department because of an abnormal shadow on the chest radiograph and liver dysfunction after lung resection for lung cancer. Following the operation, loxoprofen sodium was administered to control his chest pain. A chest radiograph on admission showed airspace consolidation in the right lower lung ...

A study was conducted to estimate the exposure-response relationship for tremolite-actinolite fiber exposure and radiographic findings among 184 men employed at a Montana vermiculite mine and mill. Workers were included if they had been employed during 1975-1982 and had achieved at least 5 years tenure at the Montana site. Past fiber exposure was ...

Bone scintigraphs obtained with both technetium-99m polyphosphate and technetium-99m pyrophosphate have been abnormal at the sacroiliac joints of 44 patients with definite ankylosing spondylitis (AS). Because of the normal registration of the sacroiliac joints on bone scintigraphy, it has been necessary to develop a profile-scan technique to quantify the ...

The bone scan is a sensitive screening device that is frequently used to stage the condition of patients with known or suspected malignant disease. Abnormal findings on bone scan are associated with corresponding normal findings on radiographs in approximately 50% of cases. Definitive tissue diagnosis of the bone ...

A 37-year-old woman was referred to our department because of an abnormal shadow on her chest radiograph as well as multiple subcutaneous nodules on both her lower legs. She had had a history of Cushing syndrome due to right adrenal adenoma, which was successfully treated by unilateral adrenalectomy two years before her admission to our department; ...

The radiographic and magnetic resonance imaging (MRI) findings for four dogs with herniation of the Cd1-Cd2 intervertebral disc are described. All dogs were 7 years of age at the time of presentation, with one neutered male and three neutered females. Breeds included one Beagle, one Bassett hound, and two large, mixed breed dogs. All dogs had tail pain on ...

Background:Upper respiratory tract problems, eg, acute sinusitis are frequently occurring illnesses in returned travelers. The most accurate and cost-effective method for diagnosing these upper respiratory tract illnesses in hospital-based settings remains an area of uncertainty. In the present retrospective cohort study, the usefulness of routine sinus radiography in the diagnostic work-up of ill ...

BACKGROUND:: Locking proximal humerus plate (LPHP) fixation has recently become available for the treatment of proximal humeral fractures. However, the preliminary results were contradictory. The technical requirements for success when using LPHP remain to be defined. Maybe the approach to the proximal humerus plays an important role, not the implants. We analyzed two surgical approaches to ...

A variety of congenital and acquired etiologies can give rise to the radiographic finding of a unilateral hyperlucent lung. An unusual case of congenital lobar emphysema diagnosed in a young adult following the initial discovery of a hyperexpanded, hyperlucent lung is reported. Although subsequent bronchoscopy and radiologic studies detailed extensive ...

Intestinal pneumatosis is a relatively rare condition that has been associated with a wide variety of abnormalities. Traditionally, this entity has been diagnosed by radiographic films, contrast series, or more accurately by computed tomography. However, reports describing findings of intestinal pneumatosis on sonographic examination, ...

Biopsy of lymph nodes at mediastinoscopy has been the method of diagnosis of tuberculosis in 14 patients; Mycobacterium tuberculosis was cultured from the nodes in nine cases, and in five there was histological evidence of the disease but cultural confirmation was lacking. All patients had radiographic abnormality of the superior mediastinum, and a ...

Craniofacial fibrous dysplasia (CFD) may show arterial displacement or increased uptake during arterial, capillary, venous, and blood-pool phases of radionuclide angiography. Extensive single or multiple areas of uptake are present on brain and bone images. These findings are probably due to the highly vascular bone often found in CFD. The distribution of the areas of ...

Hemifacial microsomia (HFM) is the commonest asymmetrical craniofacial deformity leading to underdevelopment of the craniofacial skeleton and soft tissues on the affected side. Timing of reconstructive surgery is based on a comprehensive analysis and classification of the deformity. Lateral cephalometric radiographs are of limited value because of superimposition of normal and ...

Breast imaging is not frequently performed in women aged 35 years or younger for several reasons. Approximately half of the radiographic examinations of a breast symptom give normal results because the expected density of the breast in younger women may obscure abnormalities. Results from biopsies performed subsequent to positive mammogram ...

Four young patients who presented with pain over the anterior compartment of the legs, gave a recent athletic history suggesting stress fractures. Although radiographs were initially normal in all four cases, the bone scintigrams were positive. The individual findings, however, were quite different. In one there was a single focal area of increased ...

About one-third of patients with acoustic tumor (AT) initially seek medical attention for nonaudiologic complaints. The nonspecific early symptoms of AT require the inclusion of AT in many neurologic differential diagnoses. Advances in electrophysiologic and radiographic tests have allowed earlier diagnosis of AT at a time when abnormal physical ...

A 69-year-old man with a history of exposure to asbestos was admitted because of a chest radiographic abnormality. Subsequent findings from computed tomography and a thoracoscopic biopsy suggested malignant mesothelioma. Punctate calcification was observed in the pleural tumor on computed tomography scanning. The patient underwent ...

... cell count revealed relative monocytosis and basophilia. Survey radiographs showed truncation and lysis of the caudal vertebrae ... evaluated. No abnormalities were found on full-body radiographs. Initial...

... swelling of the left shoulder. Radiographs of the left wing revealed boney proliferation of the left proximal humerus. ... other physical abnormalities were observed. Radiographs of the left wing revealed...

... time included a plasma biochemical profile, whole-body radiographs, and cloacal endoscopy. No abnormalities were identified in ... showed high numbers of Candida organisms, and survey radiographs demonstr...

A case of thyroid acropachy secondary to Graves' disease is described. Radiographic abnormalities were found to correlate with those in a /sup 99m/Tc-pyrophosphate bone scan. Abnormal tracer concentrations were observed in the diaphyses of the metacarpals and phalanges of both hands and also in regions of pretibial myxedema. ...

Radionuclide bone scan findings are described and correlated with pathology in 23 patients with giant cell tumor (GCT) of the bone. The degree of radionuclide activity was markedly increased in 20 (87%), minimally increased in three (13%), and decreased in none of the patients. Of the 23 patients with increased radioactivity, the pattern was diffuse in 11 (48%) and doughnut in ...

The occurrence and determinants of thickened interlobar fissures were assessed in 147 insulators, in order to test the hypothesis that radiographic abnormalities in minor (FMN) and/or major (FMJ) interlobar fissures are associated with restrictive respiratory impairment, which may reflect early parenchymal lung fibrosis. According to the diagnostic ...

We present the first report of the development of characteristic radiologic appearances of long bones during the first year of life in an infant with type V osteogenesis imperfecta (OI). We show the evolution of metaphyseal abnormalities from a rickets-like appearance to the classically described dense metaphyseal bands. These abnormalities suggest that ...

Use of modern materials and methods has given bone scintiscanning a larger role in clinical medicine. The safety and ready availability of newer agents have led to its greater use in investigating both benign and malignant disease of bone and joint. Present evidence suggests that abnormal accumulation of /sup 99m/Tc-polyphosphate and its analogues results from ionic deposition ...

Bone scintigraphy with Tc-99m HEDP was performed in 30 patients on maintenance hemodialysis, and the results of quantitative analysis were compared wth those of a normal group. To permit this comparison, elevated background activity due to the absence of renal radiotracer excretion was reduced by hemodialysis to levels found in the normals. Histologic proof of renal osteodystrophy had been ...

SummaryObjectiveMagnetic resonance imaging (MRI) has greater sensitivity to detect osteoarthritis (OA) damage than radiographs but it is uncertain which MRI findings in early OA are clinically important. We examined MRI abnormalities detected in knees without radiographic OA and their association with incident knee ...

BackgroundAlthough World Health Organization guidelines recommend clinical judgment and chest radiography for diagnosing tuberculosis in HIV-infected adults with unexplained cough and negative sputum smears for acid-fast bacilli, the diagnostic performance of this approach is unknown. Therefore, we sought to assess the accuracy of symptoms, physical signs, and radiographic ...

Bone scintigraphy and radiography were performed in seven children with back pain. Six of the children with radiographic evidence of a pars interarticularis defect also had abnormal scintigrams. Increased uptake of the bone imaging agent occurred at six of the ten sites of radiographic pars interarticularis defects, implying increased ...

A 76-year-old man was admitted because of dry cough and dyspnea two weeks after VATS lobectomy for lung cancer. Chest radiographs and computed tomography showed interstitial shadows in the only operative lung side. Although antibiotic drugs were given because we believed it to be postoperative pneumonia, abnormal shadows on chest ...

Ribbing disease is a rare form of sclerosing dysplasia characterized by benign endosteal and periosteal bone growth confined to the diaphyses of the long bones, usually the tibiae and femora. The onset is usually after puberty and the most common presentation is pain that is usually self-limited, but may progress. The etiology and optimal treatment for the disease are unknown. We present the case ...

Lung scintigrams and pulmonary angiograms of 111 patients with suspected pulmonary embolism who had matching perfusion defects and radiographic abnormalities (infiltrate, atelectasis, or effusion) were reviewed. In 14 patients perfusion defects were substantially smaller than the corresponding radiographic opacity; only 1 (7%) had ...

Purpose:To assess the frequency and spectrum of abnormalities on routine screening chest radiographs in the pre-employment evaluation of health care workers with positive tuberculin skin test (TST) results.Materials and Methods:The institutional review board approved this HIPAA-compliant retrospective study and waived the need for written informed patient ...

OBJECTIVE--To evaluate the effectiveness of routine ultrasound scanning at 19 weeks' gestation in an unselected population in terms of accuracy of detection of fetal structural abnormality and the effect on obstetric and neonatal care. DESIGN--Prospective study over four years. Scans performed by radiographers with overall supervision by a radiologist. ...

Clinical and radiation studies were made on all available former dial painters and others exposed to radium. Of the 80 cases studied, 6 died during 1959 and 1960. In laboratory studies, 2 abnormalities were frequent: increased erythrocyte sedimentation rate and nonconsistent alterations in serum globulin patterns. Radiographic and histologic ...

Definition of masses and malformations at the foramen magnum has been less than optimal with traditional radiographic techniques. The use of intrathecal metrizamide with computed tomographic (CT) scanning improves contrast resolution and facilitates detection of abnormalities that may not be apparent on Pantopaque cisternography, plain films, or ...

Two chest radiographs of each of 687 coal-face workers, obtained during two surveys two and a half years apart at eight pits in South Wales, have been assessed according to their technical quality as �acceptable�, �black�, �grey�, or �white�. The effect of variations in quality on the reading of the category of simple pneumoconiosis (independently carried out) ...

This large format text is the requisite reference for identifying diseases through the use of radiographs. The text designates diseases by grouping them according to their etiology. Particular features of each disorder are delineated through well defined radiographs to assist the radiologist in deciphering elusive radiographic ...

In 17 patients with histologically proven histiocytosis X radiographs and bone scans were compared. The radiographic skeletal survey is superior to bone scanning for the primary detection of bony lesions. In contrast, skeletal scans are more reliable in follow-up examinations and for the detection of recurrences.

The diagnosis of discospondylitis is based on radiographic changes in the vertebrae. The limitations of this method are the time gap between the onset of clinical signs and the first appearance of the radiographic findings, as well as the disassociation between the clinical and radiographic signs during recovery. ...

...disease. (1) Pathology report of tissue biopsy; (2) If laboratory or radiographic tests exist: (i) Abnormal plasma creatinine values; (ii) Abnormal glomerular filtration rate (by either measured creatinine or iothalamate clearance...

...disease. (1) Pathology report of tissue biopsy; (2) If laboratory or radiographic tests exist: (i) Abnormal plasma creatinine values; and (ii) Abnormal glomerular filtration rate (by either measured creatinine or iothalamate...

The diagnosis of upper thoracic spinal fractures in multiple-trauma patients remains a challenge. The clinical findings are often difficult to detect, especially in the presence of other (extremity) fractures, head injuries or in patients on respiratory support. The findings of chest radiographs and plain spinal films are described in ...

The purpose of this study was to evaluate the cost-effectiveness of routine wrist radiography in the evaluation of patients with a wrist ganglion. In the setting of a University-based hand surgery practice, 103 consecutive patients with a dorsal or volar wrist ganglion underwent posteroanterior, lateral, and oblique radiographs of the involved wrist. There were 24 men and 79 ...

The purpose of this study was to evaluate the cost-effectiveness of routine wrist radiography in the evaluation of patients with a wrist ganglion. In the setting of a University-based hand surgery practice, 103 consecutive patients with a dorsal or volar wrist ganglion underwent posteroanterior, lateral, and oblique radiographs of the involved wrist. There were 24 men and 79 ...

The results of bone scanning with the newer technetium-99m complexes were correlated with clinical, laboratory, and radiographic findings in 26 patients with malignant lymphoma (10 with Hodgkin's disease and 16 with non-Hodgkin's lymphomas). Abnormalities on bone scan compatible with lymphomatous involvement of the ...

Computer Aided Detection (CADe) and Computer Aided Diagnosis (CADx) are relatively recent areas of research that attempt to employ feature extraction, pattern recognition, and machine learning algorithms to aid radiologists in detecting and diagnosing abnormalities in medical images. However, these computational methods are based on the assumption that there are distinct ...

To evaluate the usefulness of 111In-leukocyte scintigraphy for identifying osteomyelitis in the presence of soft-tissue infection, the author prospectively studied 45 bone sites adjacent to soft-tissue infection in patients with abnormal findings on radiographs and 99mTc bone scans that were suggestive of osteomyelitis. 111In-leukocyte ...

OBJECTIVE: To identify the high-resolution CT (HRCT) patterns of Herpes-Simplex-Virus 1 (HSV) pneumonia in immunocompromised patients and correlate findings to outcome and radiographic follow-up until death or complete resolution of findings. PATIENTS AND METHODS: HRCT data-sets and plain radiographic follow-ups ...

Forty two of 125 former workers in a factory in Syracuse, New York, which manufactured hard metal parts from tungsten carbide and cobalt, were studied by chest radiographs, spirometry, and plethysmographically determined lung volumes. The plant was closed in 1982 and the studies were performed in 1983-5. Recorded measurements of carbide dust concentrations were only mildly ...

This study describes radiographic changes associated with mycobacterial infection in 33 domestic cats confirmed by culture or interferon-gamma testing. Infection was seen most frequently in adult (average age 5.7years; range 1.5-12years), non-pedigree (87%; 27/31), neutered male cats (69%; 22/32). The most common infections were Mycobacterium microti (60%; 18/30) and ...

A cine radiographic technique is being developed by using an inert rocket motor to simulate a burning rocket motor. If the development effort progresses to success, it would be possible to radiographically visualize propellant grain burning surfaces and thereby determine velocity of burn as well as to image any abnormal conditions ...

To characterize the computed tomography (CT) features of thoracic lesions caused by infection with Angiostrongylus vasorum, pre- and postcontrast CT was performed in six experimentally infected Beagles 13 weeks postinoculation and in four of these 9 weeks postchemotherapy. Findings were compared with survey radiographs and necropsy ...

Melorheostosis is a rare mesodermal disease affecting the skeleton and adjacent soft tissues. Often it is incidentally detected on radiographs. In the standard radiology and orthopedics literature, melorheostosis is described as a "flowing hyperostosis, resembling dripping candle wax as an incidental radiographic finding." A ...

The authors describe a number of abnormalities that were incidentally found in a series of 132 scintigraphic studies performed for acute gastrointestinal hemorrhage. These incidental abnormalities involved the vascular system, reticuloendothelial system, and soft tissues. Correlative radiographs and computed tomographic scans are ...

Evaluation of 100 consecutive Tc-99m MDP bone scans revealed in 36 patients a well defined area of increased accumulation of radiotracer at the Angle of Louis--the palpable ridge along the anterior surface of the sternum at the fibrocartilaginous junction of the sternum and manubrium. Twenty-five of the 36 patients had comparison radiographs; all were normal. None had sternal ...

A 17-year-old male, who gave up his favorite sport cricket and started playing football, presented with one-year history of slowly progressive atrophic weakness of forearms and hands. Neurological examination showed weak and wasted arms, forearms and hand but no evidence of pyramidal tract, spinothalmic tract and posterior column lesions. Plain cervical spine radiographs ...

Hallermann-Streiff syndrome (HSS) is a rare congenital disorder characterized by significant craniofacial findings. Dyscephaly, microphthalmia, cataracts, hypotrichosis, cutaneous atrophy, thin pinched nose, and a typical bird-like face are the main features of the syndrome. Additional features of the syndrome include dental anomalies, micrognathia, skeletal defects, and short ...

Eight patients with ulcerative colitis, three with colitis indeterminate, and 15 patients with Crohn disease were studied by computed tomography (CT) to establish CT criteria for each disorder in hopes of providing a new diagnostic perspective useful in the radiographic evaluation of inflammatory colitis. The CT findings in ulcerative colitis included ...

Nine patients with facial pain were evaluated with limited bone scans. The scintigrams correlated with microscopy in all patients, although radiographs correlated with microscopy in only five patients. The degenerative disease process in the temporomandibular joint was more extensive in the patients with radiographic and scintigraphic ...

Immunocompromised patients are susceptible to infections by organisms that infect individuals with normal immunity and by organisms that affect only those with abnormalities in their immune system. Using the radiographic findings and incorporating clinical information allows for the creation of a useful list differential diagnoses. The ...

In response to the terrorist attacks of September 11, 2001, at the World Trade Center and Pentagon, almost 50,000 rescue workers and approximately 300 search and rescue dogs participated in rescue and recovery operations. The dogs were exposed to the same hazards as the human workers, but did not have any of the personal protective gear. This prospective double cohort observational study compared ...

BackgroundThe Japanese Respiratory Society guidelines propose a differential diagnosis for atypical pneumonia and bacterial pneumonia using a scoring system for the selection of appropriate antibiotic. In order to improve this scoring system, the guidelines are seeking new specific parameter. The purpose of this study was to clarify the pattern of abnormalities with Mycoplasma ...

PURPOSE: Neurofibromatosis 1 (NF1) is a neurocutaneous-skeletal disorder with variable phenotypic expression and an incidence of 1:3,000 worldwide. The objective was to characterize the NF1-related radiologic alterations found in the jaws of these patients. PATIENTS AND METHODS: In total, 102 patients with NF1 were included in the present study. Six patients had a plexiform neurofibroma in the ...

Most of the interstitial lung diseases are rare, chronic, progressive and fatal disorders, especially in familial form. The etiology of the majority of interstitial lung disease is still unknown. Host susceptibility, genetic and environmental factors may influence clinical expression of each disease. With familial interstitial lung diseases, mutations of surfactant protein B and surfactant protein ...

Paget's disease of bone is a focal skeletal disorder characterized by the formation of structurally abnormal bone, skeletal deformities, and other complications leading to bone pain and significant disability. It can involve one or more areas in a single bone (monostotic) or multiple bones (polyostotic). Most of the time the disease is asymptomatic and the diagnosis is made ...