The Subdivision of the Type V Pit Pattern ― The Results of4years' Research in Kudo's Pit Pattern Conference Shin-ei Kudo 1 , Yasutoshi Kobayashi 1 , Hiroshi Kashida 1 , Nobunao Ikehara 1 , Keita Sasajima 1 , Takemasa Hayashi 1 , Masayuki Inui 1 , Toshihisa Hosoya 1 , Kunihiko Wakamura 1 , Yoshiki Wada 1 , Kenichi Mizuno 1 , Keiko Kudo 1 , Junichi Ukegawa 1 , Yui Kudo 1 , Fuyuhiko Yamamura 1 , Kazuo Ohtsuka 1 , Syungo Endou 1 , Fumio Ishida 1 , Junichi Tanaka 1 , Shigeharu Hamatani 2 1Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan 2Department of Pathology, Showa University Northern Yokohama Hospital, Yokohama, Japan Keyword: pit pattern , 拡大内視鏡診断 , 工藤班会議 , V型亜分類 pp.898-904
Published Date 2007/4/26
DOI https://doi.org/10.11477/mf.1403101105
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 The development of new technology in Gastrointestinal endoscopy gives us a lot of benefits in every aspect. In terms of magnifying endoscopy, when we used the colonic pit pattern, we were enabled to estimate the histology of the lesion without taking biopsies from it.

 It is known that there have been some subtle differences among various institutions using pit pattern diagnosis, so we started a discussion in to define definition of the pit pattern, especially in type V pit pattern, in Kudo's group.

 The subdivisions of the type V pit pettern were consolidated at the Hakone Pit pattern Symposium, in April,2004. It was determined that the VN pit pattern exhibited only the area of apparent nonstructure. According to further discussion about among the several institution the VI pit pattern, we defined the VI type with destroyed and desert pits as a high grade irregularity.

 With the classification based on the Hakone consensus, lesions, which exhibited a new type VN pit pattern were considered to be sm massive cancer. The highly irregular VI pit pattern also became one of the indexes of sm massive cancer.

Copyright © 2007, Igaku-Shoin Ltd. All rights reserved.


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