Japanese

Impact of Two Magnifying Chromocolonoscopic Findings on Detecting Invasive Colorectal Cancer―Pit Pattern and SA Pattern, using Crystal Violet Staining Shun-ichi Hayashi 1 , Yoichi Ajioka 2 1Department of Gastroenterology, Shun-ichi Hayashi Clinic 2Division of Molecular and Functional Pathology, Department of Cellular Function, Graduate School of Medical and Dental Sciences, Course of Molecular and Cellular Medicine, Niigata University Keyword: pit pattern , SA pattern , フラクタル次元 , 拡大内視鏡 , ピオクタニン染色 , sm massive癌 pp.753-767
Published Date 2004/4/25
DOI https://doi.org/10.11477/mf.1403100459
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 It is sometimes difficult to identify colorectal cancers invading down to the submucosa by magnifying chromocolonoscopic examination, especially in cases of lesions with numerous pits on their surface. One of the reasons for this difficulty lies in the fact that little is known about detailed magnifying chromocolonoscopic findings of these lesions despite their numerous patterns of superficial histologic constructions. Therefore, the co-relation between these endoscopic findings and superficial histologic construction of the equivalent area were investigated in order to clarify a method for identifying these lesions correctly. In the present study we employ two chromocolonoscopic findings, pit pattern and SA pattern, the staining patterns of the area between pits. Complexities of pit patterns were evaluated by means of fractal dimensions using the box-counting method. SA patterns were classified into three types, type A,B, and C, according to their density under staining. Close co-relation was found between SA pattern and histologic construction. However, little co-relation was found between pit patterns and the histologic construction although close correlation was found between pit pattern and, histologic glandular and celluar atypia. It would be of great practical advantage to have a knowledge of SA pattern for detecting cancers invading down to the submucosal layer.

 1) Department of Gastroenterology, Shun-ichi Hayashi Clinic, Mitsuke, Japan

 2) Division of Molecular and Functional Pathology, Department of Cellular Function, Graduate School of Medical and Dental Sciences, Course of Molecular and Cellular Medicine, Niigata University, Niigata, Japan


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

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