title: Carcinoid tumor arising in the wall of a congenital bile duct cyst.
abstract: We report an extremely rare case of carcinoid tumor arising in a congenital choledochal cyst. The dilated choledochal cyst in a 66-year-old Japanese woman was surgically resected, after which the ovoid elevated tumor, measuring 1.5 x 1.5 cm, was detected in the proximal portion of the cyst. A carcinoid tumor was histologically confirmed. To the best of our knowledge, this is the first published case of carcinoid tumor in a choledochal cyst.
authors.affiliation: Second Department of Pathology, Faculty of Medicine, Kyushu University, Fukuoka, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Ueyama
authors.forename: J
authors.initials: J
authors.lastname: Ding
authors.forename: H
authors.initials: H
authors.lastname: Hashimoto
authors.forename: M
authors.initials: M
authors.lastname: Tsuneyoshi
authors.forename: M
authors.initials: M
authors.lastname: Enjoji
mesh_terms: D000368:Aged; D002276:Carcinoid Tumor / Q000150:complications* / Q000473:pathology; D015529:Choledochal Cyst / Q000150:complications* / Q000473:pathology; D003138:Common Bile Duct Neoplasms / Q000150:complications* / Q000473:pathology; D005260:Female; D006801:Humans