Diagnosis of Invasion Depth in Early Colon Cancer Using Conventional Colonoscopy Makoto Sanomura 1 , Shinji Nagata 2 , Ken Kawakami 3 , Yuichi Sasaki 1 , Yutaka Naka 1 , Hiroko Yoshida 1 , Azusa Hara 1 , Minori Hara 1 , Misa Kanaizumi 1 , Nobu Nishioka 1 , Yasuhiro Ueda 1 , Kanji Nishiguchi 4 , Yutaro Egashira 5 , Yoshinobu Hirose 5 , Kazuhide Higuchi 3 1Department of Gastroenterology, Hokusetsu General Hospital, Takatsuki, Japan 2Department of Endoscopy, Hiroshima City Asa Hospital, Hiroshima, Japan 3Second Department of Internal Medicine, Osaka Medical College, Takatsuki, Japan 4Department of Surgery, Hokusetsu General Hospital, Takatsuki, Japan 5Department of Pathology, Osaka Medical College, Takatsuki, Japan Keyword: 早期大腸癌 , 大腸SM癌 , SM深部浸潤癌 , 通常内視鏡 pp.664-675
Published Date 2015/5/24
DOI https://doi.org/10.11477/mf.1403200294
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 In the determination of invasion depth in early colon cancer using conventional colonoscopy, findings that indicated a submucosal(SM)invasion depth of 1,000μm or more in protruding cases included tension findings, endoscopic hardness, uneven irregularities, abrasions, concentrated wrinkles, tightness, and hardening arches. For superficial cases, in addition to these findings, we can mention protuberance and unevenness within depression, intense reddening, platform elevation, no air transformation, and tendency to easily bleed. Apart from these, deep depression and depression in LST-G are indicators of deep infiltrations in SM cancer.

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