Fig. 5From: Adenocarcinoma arising from an ectopic pancreas in the duodenum: a case reporta Ectopic pancreas of the duodenum showing pancreatic ducts, acinar cells, and islets called Heinlich type1. b Adenocarcinoma in the duodenum mainly located in extra-mucosal layer, and combined with ectopic pancreas, which is consistent with carcinoma derived from ectopic pancreas. Magnified figures in the square are shown in c (yellow) and d (blue). c Papillary adenocarcinoma of the duodenum derived from ectopic pancreas. d Ectopic pancreatic tissue composed of pancreatic ducts and islets in duodenal muscle layerBack to article page