title: [Gastroduodenal intussusception due to pedunculated polypoid gastrointestinal stromal tumor].
abstract: The gastrointestinal stromal tumor (GIST) is a mesenchymal tumor of the digestive tract showing differentiation along the line of interstitial cell of Cajal. The most GISTs in the stomach generally show the appearance of submucosal tumors. It is rare for GISTs to appear as a pedunculated polypoid lesion on endoscopy. We experienced a case of a 51-year-old man who had a pedunculated polypoid GIST. He was admitted to our hospital for nausea, vomiting, melena and severe anemia (hemoglobin 3.4 g/dL, hematocrit 10.8%). An upper endoscopy showed gastroduodenal intussusception due to a pedunculated polypoid mass. This report presents a rare case of endoscopically proven gastroduodenal intussusceptions due to pedunculated polypoid GIST in the stomach.
authors.affiliation: Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University College of Medicine, 29 Saemunan-ro, Jongno-gu, Seoul 110-746, Korea.
authors.forename: Hyo Sun
authors.initials: HS
authors.lastname: Seok
authors.forename: Chong Il
authors.initials: CI
authors.lastname: Shon
authors.forename: Hyun Il
authors.initials: HI
authors.lastname: Seo
authors.forename: Young Ghil
authors.initials: YG
authors.lastname: Choi
authors.forename: Won Gil
authors.initials: WG
authors.lastname: Chung
authors.forename: Hyun Sun
authors.initials: HS
authors.lastname: Won
mesh_terms: D004378:Duodenal Diseases / Q000209:etiology / Q000473:pathology*; D006471:Gastrointestinal Hemorrhage; D005770:Gastrointestinal Neoplasms / Q000150:complications / Q000473:pathology*; D046152:Gastrointestinal Stromal Tumors / Q000150:complications / Q000473:pathology*; D005773:Gastroscopy; D006801:Humans; D007443:Intussusception / Q000209:etiology / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed