Carcinoma of gastric stump causing afferent loop obstruction and acute pancreatitis.

We report a case of a 79-year-old man who had undergone partial gastrectomy with Billroth-II (B-II) anastomosis 42 years ago for benign peptic ulcer. He presented with abdominal pain, distention and acute pancreatitis. Esophagogastroduodenoscopy showed a malignant mass obstructing the afferent stoma; surgical resection was performed. Pathogenesis of acute pancreatitis in this case and the problem of gastric stump carcinoma are discussed.