title: Duplication cyst of the small intestine found by double-balloon endoscopy: a case report.
abstract: A 35-year-old man was admitted due to bloody stool and anemia. The bleeding source could not be detected by esophagogastroduodenoscopy or colonoscopy. Double balloon endoscopy (DBE) revealed a diverticulum-like hole in which coagula stuck in the ileum at 1 meter on the oral side from the ileocecal valve. The adjacent mucosa just to the oral side of the hole was elevated like a submucosal tumor. The lesion was considered the source of bleeding and removed surgically. It was determined to be a cyst with an ileal structure on the mesenteric aspect accompanying gastric mucosa. The diagnosis was a duplication cyst of the ileum, which is a rare entity that can cause gastrointestinal bleeding. In the present case, DBE was used to find the hemorrhagic duplication cyst in the ileum.
authors.affiliation: Department of Internal Medicine, Saiseikai Fukuoka General Hospital, Fukuoka-Shi, Fukuoka-Ken, Japan.
authors.forename: Haruei
authors.initials: H
authors.lastname: Ogino
authors.forename: Toshiaki
authors.initials: T
authors.lastname: Ochiai
authors.forename: Norimoto
authors.initials: N
authors.lastname: Nakamura
authors.forename: Daisuke
authors.initials: D
authors.lastname: Yoshimura
authors.forename: Teppei
authors.initials: T
authors.lastname: Kabemura
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Kusumoto
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Matsuura
authors.forename: Akihiko
authors.initials: A
authors.lastname: Nakashima
authors.forename: Kuniomi
authors.initials: K
authors.lastname: Honda
authors.forename: Kazuhiko
authors.initials: K
authors.lastname: Nakamura
mesh_terms: D000328:Adult; D002404:Catheterization; D003560:Cysts / Q000150:complications / Q000175:diagnosis* / Q000473:pathology; D016099:Endoscopy, Gastrointestinal / Q000379:methods*; D006471:Gastrointestinal Hemorrhage / Q000209:etiology; D006801:Humans; D007077:Ileal Diseases / Q000150:complications / Q000175:diagnosis* / Q000473:pathology; D008297:Male