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Biomedical subjects

J G Rabinowitz

Publications and source records attributed to J G Rabinowitz.

At least 55 records · Page 3Linked to original sources
PubMed1981

Ultrasonography and computed tomography of gastric wall lesions.

The ultrasonographic features of gastric wall lesions were studied in 40 patients and correlated with the CT findings in 14. Features diagnostic of tumor included (a) an infiltrative lesion causing thickening of the gastric wall, which can be localized or diffuse and smooth or irregular; (b) a globular mass, nodular or irregular, poorly or irregularly echogenic or containing a necrotic cavity; and (c) a combination of both, resulting in a rather complicated configuration. Gastritis and gastric ulcers also cause thickening of the gastric wall, but to a lesser extent.

Carcinoma↗
PubMed1981

Displaced paraspinal line: role of CT and lymphography.

Demonstration of involvement of lower mediastinal paravertebral nodes in lymphomatous or metastatic disease may alter the mode of treatment or localization of fields for radiotherapy. Displacement of paraspinal lines in a posteroanterior chest radiograph may indicate such adenopathy. In 20 selected cases in which computed tomography and/or lymphography were performed, 13 of 16 lymphograms and 11 of 11 CT scans helped confirm a paraspinal mass, suggesting adenopathy. Paraspinal line displacement, CT criteria of adenopathy, and the greater sensitivity of CT in the paraspinal area are discussed.

Female↗
PubMed1980

Abnormalities of the liver and other organs.

The liver may undergo pathologic changes as a result of an overall disease process that also affects other organs. This article focuses on those diseases in which abnormalities of the liver are only one part of the process, and in which radiographic investigation of the liver is diagnostically important.

Abnormalities, Multiple↗
PubMed1980

Ultrasonography and computed tomography of the liver.

Both CT scanning and ultrasonography are diagnostic modalities of choice for the evaluation of the liver. The physical principles of these studies differ and, therefore, so do the techniques used and the information provided. A comparison of the results obtained from each of them in the investigation of such processes as jaundice, tumors, hematomas, and diffuse parenchymal disease is offered.

Biopsy↗
PubMed1978

The relationship between HLA-B27 positive peripheral arthritis and sacroiliitis.

HLA typing for B27 antigen is a helpful diagnostic aid in the classification of peripheral arthritis patients (especially young patients) who are rheumatoid factor negative. We studied 109 patients with seronegative peripheral arthritis belonging to various clinical categories; 23% proved to be B27 positive in comparison to 7% of normal controls. In spite of a paucity of spinal manifestations there was a high prevalence of sacroiliitis (83%) in the B27 positive peripheral arthritis patients as opposed to only 21% in those without B27 antigen. HLA-B27 typing and radiographs of the sacroiliac joints are important differential tests.

Adolescent↗
PubMed1978

Loculated interlobar air-fluid collection in congestive heart failure.

Two patients are described who had congestive heart failure with loculated interlobar air-fluid collections. Although pseudotumor (interlobar effusion) is a well-known finding in congestive heart failure, the additional presence of air is unique. Both are somewhat related to the underlying failure.

Aged↗
PubMed1977

Fibrous mediastinitis: a late manifestation of mediastinal histoplasmosis.

Fibrosing mediastinitis is an uncommon manifestation of histoplasmosis that occurs primarily in younger patients. Findings include tracheobronchial narrowing, compromise of the main pulmonary artery and veins, and circumferential narrowing of the esophagus. The initial chest radiograph is often diagnostic, although additional studies including tomography and angiography help clarify the extent and severity of the disease process.

Adolescent↗
PubMed1977

The radiologic spectrum of cardiopulmonary amyloidosis.

Amyloidosis, either primary or related to other pathologic states, may mimic a variety of disorders and produce a multitude of appearances demonstrable on radiographic examinations of the chest. All intrathoracic tissues and organs may be affected, but the major abnormalities most commonly involve the heart and lungs. The radiographic appearances in ten patients are described and correlated with the underlying gross and microscopic pathologic findings. No specific pattern of pulmonary involvement could be determined, aside from tracheobronchial amyloidosis. The final diagnosis is dependent upon the awareness of the clinical and radiologic spectrum and the final microscopic examination of involved tissue.

Amyloidosis↗
PubMed1976

Air embolus following pulmonary interstitial emphysema in hyaline membrane disease.

Two cases of hyaline membrane disease are presented complicated by severe, interstitial emphysema and resulting in death from air embolus. This is consistent with the experimental evidence of other investigators that shows that such an air embolus may be more common complication of hyaline membrane disease than previously expected.

Embolism, Air↗
PubMed1976

Renal cortical outline evaluation in excretory urography.

Capillary phase nephrogram films and tomography were used to evaluate renal cortical outlines and renal parenchymal masses. The method of examination and the results are presented, showing the capillary phase film to be beneficial and to play a significant role in excretory urography. No increase in the incidence of side effects was noted with the rapid injection technique.

Adult↗
PubMed1976

Pulmonary manifestations of blastomycosis. Radiological support of a new concept.

The pulmonary manifestations of blastomycosis were observed in 51 patients and correlated with their location in the lungs and the clinical appearance of the patient. Blastomycosis is primarily an airbone infection that occurs in both acute and chronic forms and follows a specific pathway within the lungs. It must be strongly considered in the differential diagnosis of pulmonary lesions in geographical areas endemic to the disease.

Blastomycosis↗
PubMed1976

Lung abscess and osteomyelitis of rib due to Yersinia enterocolitica.

The first reported case of infection of the lung and bone with Yersinia enterocolitica is described. This organism has only recently been known to infect humans. Although a wide spectrum of diseases has been described, all have appeared to be relatively benign; however, in our case a rapid necrotizing process occurred. Therefore, the aggressive nature of this organism outside its usual surroundings, eg, the gastrointestinal tract, is worth noting.

Aged↗
PubMed1976

Roentgenology-pathology correlative study of neovascularity.

In an attempt to evaluate the histologic picture of what is shown on angiograms as neovascularity, several benign and malignant tumors were examined. New vessels (neovascularity) are large capillaries or sinusoids, and neither contain smooth muscle in their walls. The walls may contain some fibrous connective tissue. Puddling, laking, and staining represent the collection of contrast medium in small capillaries or sinusoids. Some tumors, such as hemangioma of the liver, cystadenoma of the pancreas, and angiomyolipoma of the kidney contained abnormal vascularity, but this was not composed of vessels which had arisen or developed anew, as there was smooth muscle in their walls, and this indicates that those vessels had been there from birth. In xanthogranulomatous pyelonephritis and chronic renal disease, the appearance of increased vascularity is the result of rearrangement of the normal vascular structures.

Angiography↗
PubMed1976

Changing clinical and roentgenographic patterns of necrotizing enterocolitis.

Necrotizing enterocolitis (NEC) occasionally deviates from the classical presentation of the disease. Small bowel dilatation and pneumatosis are frequently present prior to the actual onset of the clinical presentation. Pneumatosis intestinalis, an important diagnostic sign of NEC, is quite variable; it may be present, persist, worsen, or disappear; or at times it may not be present at all. A severe complication of necrotizing enterocolitis is perforation which in 50 percent of the cases presented without obvious free intra-abdominal air. Accumulation of fluid in the abdomen is stressed as strong evidence for perforation and a strong indication for surgery. The varying features indicate that NEC has a clinical spectrum that extends from benign to severe, and recognition of all these variations will lead to better diagnosis and to a better understanding of the disease. The clinical and roentgenologic variations make classification difficult but the variety most likely represents the combination of a great number of susceptible children and a greater recognition of the disease.

Air↗
PubMed1976

Intestinal perforations secondary to nasojejunal feeding tubes.

Infant alimentation by nasojejunal tube feeding has been successfully used since 1973. A significant complication is small bowel perforation by the tube; three cases are presented. The differential diagnosis includes spontaneous gastric perforation and necrotizing enterocolitis. Nasojejunal tube perforation almost always occurs in the distal duodenum. It is likely the result of peristaltic activity which propels the tube along the relatively rigid duodenal loop. Thus it is preferable to position the tube end distal to the ligament of Treitz.

Duodenal Diseases↗