title: [Synchronous gastrointestinal stromal tumors of the rectum and duodenum: a case report].
abstract: An 85-year-old woman with anemia underwent colonoscopy, which revealed a 25-mm submucosal tumor with ulceration in the lower rectum. Histological examination of a biopsy showed that the lesion was a gastrointestinal stromal tumor (GIST). Subsequent esophagogastroduodenoscopy revealed a submucosal tumor in the duodenum, and examination of a biopsy obtained by endoscopic ultrasound-guided fine-needle aspiration also confirmed that this lesion was a GIST. The rectal lesion was surgically resected to control bleeding and was confirmed as a GIST histologically. Simultaneous development of GISTs in the rectum and duodenum is extremely rare.
authors.affiliation: Department of Gastroenterology, Kyushu Rosai Hospital.
authors.forename: Yosuke
authors.initials: Y
authors.lastname: Minoda
authors.forename: Soichi
authors.initials: S
authors.lastname: Itaba
authors.forename: Toyoma
authors.initials: T
authors.lastname: Kaku
authors.forename: Kosuke
authors.initials: K
authors.lastname: Makihara
authors.forename: Junko
authors.initials: J
authors.lastname: Matsuoka
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Murao
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Hamada
authors.forename: Kazuhiko
authors.initials: K
authors.lastname: Nakamura
mesh_terms: D000369:Aged, 80 and over; D004379:Duodenal Neoplasms / Q000473:pathology*; D005260:Female; D046152:Gastrointestinal Stromal Tumors / Q000473:pathology*; D006801:Humans; D009378:Neoplasms, Multiple Primary / Q000473:pathology*; D012004:Rectal Neoplasms / Q000473:pathology*