Biomedical subjects
Publications and source records attributed to G Shaked.
A 30-year-old man was admitted because of fatigue, vertigo and 2 episodes of melena. Endoscopy showed a tumor in the gastric antrum which appeared benign, as was also its appearance on barium meal. The source of the bleeding was the mucosa overlying the tumor. Antrectomy was performed with Billroth I anastomosis. Histopathological examination revealed the tumor to be an ectopic pancreas in the gastric wall.
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Induction of acute acalculous cholecystitis was studied in dogs. Designed models included ligation of the cystic artery and/or duct separately or combined and injection of colonic flora into the gallbladder. Cholecystectomy was performed 72 h later. Histological studies of the gallbladders and bile cultures demonstrated various degrees of cholecystitis, the severest form occurring as a result of cystic artery ligation, whereas the mildest was produced by injection of bacteria. Secondary infection was a constant feature of our experimental models.