Fig. 4From: Pancreas-preserving partial duodenectomy for non-ampullary duodenal neoplasms: three case reportsa Upper gastrointestinal endoscopy revealed a semi-circumferential 0–Is + IIa lesion in the horizontal duodenum. b Duodenography revealed a tumor in the horizontal duodenum. c, d A diagram of surgical procedures is shownBack to article page