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Japanese

Submucosal Rectal Carcinoma Spreading Widely Under the Normal Mucosa, Report of a Case Yohji Honda 1 , Shinji Nagata 2 , Mayumi Kaneko 3 , Nana Nakayama 1 , Mieko Onoyama 1 , Kenjirou Shigita 1 , Kenichi Kuwahara 1 , Shigeru Kimura 1 , Keiji Tsuji 1 , Hiroaki Ogoshi 2 , Akio Sakatani 3 , Toru Hidaka 1 1Department of Internal Medicine, Hiroshima Asa City Hospital, Hiroshima, Japan 2Department of Endoscopy, Hiroshima Asa City Hospital, Hiroshima, Japan 3Department of Pathology, Hiroshima Asa City Hospital, Hiroshima, Japan Keyword: 大腸SM癌 , 進展形式 , 範囲診断 , NBI拡大観察 , 拡大内視鏡観察 pp.1708-1714
Published Date 2010/9/25
DOI https://doi.org/10.11477/mf.1403102032
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 A man in his sixties underwent a colonoscopy for the diagnostic purpose of occult blood stool. Conventional colonoscopy revealed a protruded lesion in the lower rectum. The tumor was 10mm in diameter, and the configuration was type Is. Magnifying colonoscopy with the NBI(narrow band imaging)system showed thick and irregular vessels. Magnifying colonoscopy with crystal violet showed VI-high type pit pattern from the border to the top of the protruded lesion. Based on these findings, this tumor was diagnosed as a deeply submucosal invasive carcioma. ESD(endoscopic submucosal dissection)was performed for total biopsy. Pathologically, the protruded lesion was a moderately differentiated tubular adenocarcinoma with a depth of submucosal invasion(SM 4,900μm, from the surface of the tumor), ly2, v3.

 It had invaded widely into the lower layer of the protruded lesion and the neighboring mucosa with vessel invasion, and reversely into the lamina propria mucosa.


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

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