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Argentaffin Carcinoid of the Sigmoid Colon, Report of a Case Keisuke Ikeda 1 1Department of Pathology, Fukuoka University Chikushi Hospital Keyword: S状結腸カルチノイド , 銀還元性 , 内視鏡的切除 pp.221-225
Published Date 2005/2/25
DOI https://doi.org/10.11477/mf.1403100205
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 A 52-year-old man come to our hospital with the chief complaint of lower abdominal pain. Colonoscopic examination revealed a protruded tumor measuring about 8 mm in the sigmoid colon. Endoscopic resection was performed. Histologically, the tumor was composed of uniformly small epithelial cells arranged in tubular and trabecular fashion. Histochemically, almost all the tumor cells had intracytoplasmic argentaffin granules, so the lesion was diagnosed as an argentaffin carcinoid. In this country, large bowel carcinoid is mostly found in the rectum, and it usually shows no argentaffin. This case was an argentaffin carcinoid which occurred in the sigmoid, so we report it because we regarded it as a rare case.


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電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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