Biomedical subjects
J Farman
Publications and source records attributed to J Farman.
Proximal duodenal deformities due to pancreatitis.
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Further observations on calcified medullary bone lesions in chronic pancreatitis.
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AIDS-related cholangiopancreatographic changes.
The cholangiographic and pancreatographic appearances of the acquired immunodeficiency syndrome (AIDS) associated cholangitis were evaluated in 26 patients. Twenty-four patients were diagnosed by retrograde cholangiography or endoscopic cholangiopancreatography (ERC or ERCP). One patient was diagnosed by T-tube cholangiography and another patient by transhepatic cholangiography. The radiographic findings ranged from intrahepatic ductal abnormalities with or without involvement of the extrahepatic biliary tree (eight patients) to irregularities and strictures involving the ampulla of Vater or the intrapancreatic portion of the common bile duct (CBD) with proximal dilatation (18 patients). Significant strictures involving the juxta-ampullary pancreatic duct were identified in six of 12 patients. Twenty-one of the 26 patients had associated infections which included: Cryptosporidium (CS), Mycobacterium avium intracellulare (MAI), cytomegalovirus (CMV), Microsporidium (MSP), and Isospora (ISP). Three patients were operated upon for acute acalculous cholecystitis. In each instance, organisms were identified in both the bile duct and the inflamed gallbladder.
Volvulus of the Kock reservoir.
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Carcinoma of the appendix: report of two cases.
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Colitis cystica profunda, an unusual solitary tumor: Report of three cases.
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Radiopathologic correlation in pseudomembranous colitis: report of a case.
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Gastric sarcoidosis.
Sarcoidosis of the gastrointestinal tract is uncommon even though involvement of the liver, spleen, and adenopathy are becoming recognizable entities on computed tomography (CT). Involvement of the stomach, the most common site of sarcoidosis of the gastrointestinal tract, is usually associated with pulmonary disease. The radiologic appearances of gastric involvement are variable. Positive biopsies may be obtained in a radiologically normal stomach. Ulceration resembling peptic ulcer disease may occur, and mucosal enlargement may be minor, diffusely nodular, or significant enough to mimic Menetrier disease. In its most dramatic form, a linitis plastica appearance resembling scirrhous carcinoma has been reported.
Leiomyoblastoma: varied CT appearance.
Leiomyoblastoma is an uncommon tumor of the stomach. Usually exogastric in site, the tumor may grow to a significant size before it becomes symptomatic. Various appearances of the tumor include cystic and solid forms as well as a combination of both. Tumor hypervascularity may be identified on computed tomography (CT). The development of calcification in this tumor is rare. Late recurrence of the tumor may occur. The differential diagnosis should include leiomyosarcoma, leiomyoma, pancreatic pseudocyst, and cystadenoma.
Abdominal manifestations of sarcoidosis. CT appearances.
Sarcoidosis frequently involves the abdomen, although imaging studies often fail to demonstrate disease. The most common computed tomography (CT) findings in abdominal sarcoidosis are hepatosplenomegaly and retroperitoneal adenopathy, followed by focal low-attenuation lesions of the liver and spleen. Other abdominal viscera are involved infrequently. We present four cases of abdominal sarcoidosis demonstrating a range of CT findings.
CT of pancreatitis with renal and juxtarenal manifestations.
Involvement of the juxtarenal spaces and kidneys in pancreatitis has been well known. Although delineation of the regions of accumulation of exudate has been elegantly confirmed with the advent and advance of refined computerized tomography (CT) there has been relatively little description in the earlier literature of these phenomena. This essay serves to illustrate the wide range of findings that have been encountered and recorded more recently.
Bouveret's syndrome: diagnosis by helical CT scan.
Calculous cholecystitis severe enough to result in pyloric outlet obstruction is a rare occurrence. Impaction of a large calculus in the duodenum or stomach as a consequence of fistula formation is usually diagnosed on upper gastrointestinal series. Computed tomography is uncommonly used to diagnose this condition and was diagnostic in our patient.
CT features of presacral mass: an unusual focus of extramedullary hematopoiesis.
A case of beta-thalassemia with an unusual focus of extramedullary hematopoiesis is reported. The presacral area was involved producing a significant mass effect on the rectum.
CT demonstration of giant choledochal cysts in adults.
The initial diagnosis for three adult patients with giant choledochal cysts was confused because of the enormous size of the cysts. Jaundice in association with marked upper gastrointestinal displacement was the dominant feature in two of our cases. Intrahepatic ductal dilatation is common when choledochal cysts present in the adult. The malignant potential of choledochal cysts is discussed.