Franzjosef Schweiger

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Gastric outlet obstruction caused by a large gallstone in the duodenum or pylorus (Bouveret's syndrome) is a rare complication of gallstone disease. The presenting symptoms are often nonspecific and include nausea, vomiting, epigastric pain and a history of gallbladder disease. Although the diagnosis is established only at surgery in many cases,(More)
The case of a previously healthy man who developed primary non-Hodgkin's lymphoma of the liver is presented. Biopsy confirmed that the tumour was of the diffuse large cell type and was of apparent T-cell origin. The diagnosis of these rare tumours is suggested by the presence of a hepatic mass without lymphadenopathy, splenomegaly or bone marrow(More)
Infliximab, a monoclonal antibody directed against tumour necrosis factor-alpha, is an effective therapy for Crohn's disease. Though uncommon, serious opportunistic infections, including reactivation of tuberculosis, have occurred in patients after infliximab administration.Meningitis caused by Listeria monocytogenes developed in a 37-year-old man six days(More)
Fistulous communication between the pancreas and the portal venous system is extremely rare and is usually a complication of chronic pancreatitis or pancreatic pseudocysts. A patient who presented with abdominal pain and ascites secondary to a pancreaticoportal fistula and portal system thrombosis is described. The diagnosis was made by endoscopic(More)
Gastric diverticula are usually single and most frequently occur in the juxta-cardiac region of the stomach. Prepyloric diverticula generally are rare, single, and usually acquired. We describe a patient with multiple prepyloric diverticula and pyloric stenosis diagnosed by upper gastrointestinal x-ray studies and endoscopy. To our knowledge, this(More)
Infection with Dicrocoelium dendriticum in humans is rarely reported in the medical literature. This liver fluke, which commonly infects ruminants, has a complex life cycle with two intermediate hosts--the land snail and the ant. True human infection occurs by ingestion of the second intermediate host, but spurious infections have occurred after consumption(More)
Bacterial oesophagitis is an uncommon and poorly described entity affecting particularly the immunosuppressed patient. The diagnosis rests on the demonstration of bacterial invasion of the oesophageal wall in the absence of other pathological processes. The causative organisms usually are Gram-positive cocci and there may be associated bacteraemia. The case(More)
Black esophagus or acute esophageal necrosis rarely occurs after severe hemodynamic compromise or low-flow states. Other contributing factors may include corrosive injury from gastric contents and diminished mucosal repair mechanisms. Ischemic cholangitis, another rare clinical entity, is also usually the result of a significant vascular and/or hypotensive(More)
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