Annular pancreas; peptic ulcer as late postoperative sequela.

Two cases of annular pancrease with late postoperative sequelae of duodenal and gastric ulcer are presented. In each case operation was limited to the annulus. Because symptoms are not permanently relieved by this procedure and subsequent peptic ulceration is not prevented, it is suggested that partial gastric resection be performed and decompression of the duodenal stump be effected by resection of the pancreatic ring.