title: Case of intra-abdominal endocrine tumor possibly arising from an ectopic pancreas.
abstract: We report an intra-abdominal endocrine tumor possibly arising from an ectopic pancreas. A 45-year-old woman visited the Nippon Medical School Musashi-Kosugi Hospital because of right-sided hypochondralgia and upper abdominal discomfort of 1 years duration. An intra-abdominal tumor was diagnosed on the basis of the results of an ultrasound examination, computed tomography and magnetic resonance. Surgery was subsequently performed using laparoscopic techniques, and a tumor without firm adhesions was found near the wall of the duodenal bulbus. The tumor was easily removed; the resected specimen (55 x 45 x 25 mm, 50 g) was composed of bloody fluid within a cystic tumor. Histological and immunohistochemical examinations of the tumor showed a type 3 ectopic pancreas, according to the classification proposed by Heinrich. The patients recovery was uneventful.
authors.affiliation: Institute of Gastroenterology, Nippon Medical School Musashi-Kosugi Hospital, 1-396 Kosugi-cho, Nakahara-ku, Kawasaki, Kanagawa 211-8533, Japan. masao@nma.sc.jp
authors.forename: Masao
authors.initials: M
authors.lastname: Ogata
authors.forename: Naoto
authors.initials: N
authors.lastname: Chihara
authors.forename: Tetsuro
authors.initials: T
authors.lastname: Matsunobu
authors.forename: Masaki
authors.initials: M
authors.lastname: Koizumi
authors.forename: Masanori
authors.initials: M
authors.lastname: Yoshino
authors.forename: Takeshi
authors.initials: T
authors.lastname: Shioya
authors.forename: Masanori
authors.initials: M
authors.lastname: Watanabe
authors.forename: Akira
authors.initials: A
authors.lastname: Tokunaga
authors.forename: Takashi
authors.initials: T
authors.lastname: Tajiri
authors.forename: Koshi
authors.initials: K
authors.lastname: Matsumoto
mesh_terms: D018278:Carcinoma, Neuroendocrine / Q000175:diagnosis / Q000209:etiology* / Q000473:pathology / Q000601:surgery; D002828:Choristoma / Q000150:complications*; D004378:Duodenal Diseases / Q000150:complications*; D005260:Female; D006801:Humans; D008875:Middle Aged; D010179:Pancreas; D010190:Pancreatic Neoplasms / Q000175:diagnosis / Q000209:etiology* / Q000473:pathology / Q000601:surgery