title: An annular pancreas associated with carcinoma of the papilla of Vater: report of a case.
abstract: An annular pancreas is an uncommon congenital anomaly that usually presents early in childhood. Malignancy in the setting of an annular pancreas is unusual. We herein report a case of annular pancreas with carcinoma of the papilla of Vater. A 59-year-old man presented with epigastric discomfort and was referred to us after gastroduodenal endoscopy showed a tumor of the papilla of Vater. Preoperative imaging showed the pancreatic parenchyma encircling the descending duodenum and a tumor at the papilla of Vater. A pancreaticoduodenectomy was performed for the annular pancreas and the ampullary tumor. Histological examination confirmed a complete annular pancreas and carcinoma in situ of the papilla of Vater. We also provide a review of the reported cases of an annular pancreas with periampullary neoplasms and discuss the clinical characteristics of this anomaly.
authors: Department of Surgery, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan. naoki-y@poppy.ocn.ne.jp
authors: Naoki
authors: N
authors: Yazawa
authors: Toshihide
authors: T
authors: Imaizumi
authors: Daisuke
authors: D
authors: Furukawa
authors: Masahiro
authors: M
authors: Matsuyama
authors: Hisashi
authors: H
authors: Gunji
authors: Kenichiro
authors: K
authors: Kato
authors: Kosuke
authors: K
authors: Tobita
authors: Toshio
authors: T
authors: Nakagohri
authors: Hiroyasu
authors: H
authors: Makuuchi
authors: Kenichi
authors: K
authors: Hirabayashi
authors: Kyoji
authors: K
authors: Ogoshi
mesh_terms: D014670:Ampulla of Vater; D002278:Carcinoma in Situ / Q000209:etiology* / Q000473:pathology / Q000601:surgery*; D003138:Common Bile Duct Neoplasms / Q000175:diagnosis / Q000209:etiology* / Q000473:pathology / Q000601:surgery*; D005773:Gastroscopy; D006801:Humans; D008297:Male; D008875:Middle Aged; D010179:Pancreas / Q000002:abnormalities / Q000473:pathology / Q000601:surgery; D010182:Pancreatic Diseases / Q000150:complications* / Q000473:pathology / Q000601:surgery*; D016577:Pancreaticoduodenectomy