Stomach and Intestine(Tokyo) Volume 54, Issue 2 (February 2019)

Gastrointestinal Stromal Tumor of the Small Intestine Presenting in a Peculiar Form, Report of a Case Atsushi Miki 1 , Takuo Tokairin 2 , Kouichirou Abe 1 , Keiji Matsuda 3 , Fukuo Kondo 2 , Hitoshi Aoyagi 1 , Akari Isono 1 , Ryo Miura 1 , Shinya Kodashima 1 , Toshihiko Arizumi 1 , Mitsuhiko Aiso 1 , Yoriyuki Takamori 1 , Takatsugu Yamamoto 1 , Atsushi Tanaka 1 , Youjirou Hashiguchi 3 1Department of Internal Medicine, Teikyo University Hospital, Tokyo 2Department of Pathology, Teikyo University Hospital, Tokyo 3Department of Surgery, Teikyo University Hospital, Tokyo Keyword: GIST , 小腸 , 出血 , 小腸内視鏡検査 , 小腸X線造影検査 pp.285-291
Published Date 2019/2/25
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 A man in his 40s was admitted to our hospital with anemia and melena. Contrast-enhanced computed tomography showed a heterogeneous enhanced structure with calcification in the jejunum. Small bowel series and transoral single-balloon enteroscopy led to the detection of a protruding tumor characterized with an oval, smooth surface covered with normal epithelium and central depression without erosion and ulceration. The lesion was diagnosed as a GIST(gastrointestinal stromal tumor)by pathological examination after laparoscopic resection was performed. Unlike our case, small bowel GIST complicated bleeding is usually accompanied by mucosal injury. The depressed region may be formed due to an imbalance of proliferation that occurred between the marginal and central areas of the tumor. Therefore, the center of the lesion may be relatively depressed.

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54巻2号 (2019年2月)
電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院