Stomach and Intestine(Tokyo) Volume 51, Issue 5 (May 2016)
Japanese

Magnifying Endoscopic Findings of Normal Colorectal Mucosa Tsutomu Nagata 1,2 , Osamu Tsuruta 1,2 , Akihiro Ouchi 1,2 , Yasuhiko Maeyama 1,2 , Yoichiro Shindo 1,2 , Hiroshi Hisanaga 1,2 , Shuhei Fukunaga 1,2 , Atsushi Hinosaka 1,2 , Michita Mukasa 1,2 , Erina Ueno 3 , Hiroshi Kawano 3 , Keiichi Mitsuyama 1,2 , Takuji Torimura 1,2 1Division of Gastroenterology, Department of Medicine, Kurume University of Medicine, Kurume, Japan 2Digestive Disease Center and GI Endoscopy, Kurume University Hospital, Kurume, Japan 3Division of Gastroenterology, St Mary's Hospital, Kurume University of Medicine, Kurume, Japan Keyword: コントラスト法 , 染色法 , NBI(narrow band imaging)system , 正常像 pp.641-646
Published Date 2016/5/24
DOI https://doi.org/10.11477/mf.1403200625
  • Abstract
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 Histologically, a single tubular gland comprising a single layer of columnar epithelium in the normal colorectal mucosa is regularly arranged, running as capillaries under tegmental epithelium surrounding the ducts. In magnifying endoscopy with NBI(narrow-band imaging), the capillaries are visualized as a regular honeycomb-like structure around white marginal crypt epithelium and the crypt opening is visualized as a black or white point in the center of marginal crypt epithelium. In magnifying endoscopy using indigo carmine dye spraying, the crypt opening(pit)is observed as a regular circular dye reservoir(type I pit), whereas using crystal violet staining, it is visualized as a roughly circular unstained white point(type I pit). These observations are not limited to the normal colorectal mucosa ; however, it is rare to observe regular honeycomb-like capillaries using NBI as the crypt opening is often observed as having a type IIIL-like pit pattern. When performing the magnifying endoscopic diagnosis of colorectal lesion, it is necessary to compare normal and abnormal endoscopic findings.


Copyright © 2016, Igaku-Shoin Ltd. All rights reserved.

基本情報

05362180.51.5.jpg
胃と腸
51巻5号 (2016年5月)
電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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