Stomach and Intestine(Tokyo) Volume 54, Issue 6 (May 2019)
Japanese

Pit Pattern Diagnoses for Protruding Early Colorectal Cancer Masashi Misawa 1 , Shin-ei Kudo 1 , Shinichi Kataoka 1 , Hiroki Nakamura 1 , Katsuro Ichimasa 1 , Tomoyuki Ishigaki 1 , Kenichi Takeda 1 , Naoya Toyoshima 1 , Yuichi Mori 1 , Noriyuki Ogata 1 , Toyoki Kudo 1 , Tomokazu Hisayuki 1 , Takemasa Hayashi 1 , Kunihiko Wakamura 1 , Toshiyuki Baba 1 , Fumio Ishida 1 1Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan Keyword: 拡大内視鏡 , pit pattern , 早期大腸癌 pp.870-876
Published Date 2019/5/25
DOI https://doi.org/10.11477/mf.1403201762
  • Abstract
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 In this study, we retrospectively analyzed 1,284 patients with protruding early colorectal cancer and their pit pattern findings. When we assumed the type VN pit pattern as an indication of T1b cancer, the specificity was 99.5%. Conversely, the proportion of T1b cancers that were revealed to be type VN or having a VI high-grade pit pattern was only 58%. Thirty-two percent of the lesions with a VI high-grade pit pattern were Tis or T1a cancer. Protruding colorectal cancer often invades the deep submucosal layer without exposing the submucosal cancer tissue. Therefore, it is necessary to carefully determine the treatment procedure for protruding early colorectal cancer compared to other macroscopic types of cancer.


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基本情報

05362180.54.6.jpg
胃と腸
54巻6号 (2019年5月)
電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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