Shimane Journal of Medical Science

Shimane University Faculty of Medicine
ISSN :0386-5959(冊子体)
ISSN :2433-2410(オンライン)

クリエイティブ・コモンズ・ライセンス
これらの論文は クリエイティブ・コモンズ 表示 - 非営利 - 改変禁止 4.0 国際 ライセンスの下に提供されています。
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Shimane Journal of Medical Science 20 2
2002-12-01 発行

An evaluation of the usefullness of magnifying colonoscopy for the diagnosis of tumor invasion depth in early colorectal cancer

天野 祐二
Komazawa, Yoshinori
Oose, Takayuki
Miyaoka, Youichi
Yuki, Takafumi
Yoshino, Nagisa
Fujishiro, Hirofumi
門脇 泰憲
Ishihara, Shunji
足立 経一
ファイル
内容記述(抄録等)
Magnifying colonoscopy can be used to observe colonic mucosal pits. Using this technique, a pit pattern classification system consisting of seven categories has been established. We evaluated the role of magnifying colonoscopy for the diagnosis of colorectal tumors, particularly for the assessment of the invasion depth of early colorectal carcinoma, which is an important indicator for successful and complete endoscopic resection. Thirty-two of early colorectal cancers in twenty-seven cases were examined by magnifying colonoscopy using 0.05% crystal violet solution. The main and accessory pit patterns of all of the lesions were classified by magnifying colonoscopy. The depth of vertical invasion of the tumor was also assessed by endoscopic ultrasonography as well as by histological examination following endoscopic mucosal resection or surgical operation. An accurate determination of tumor depth by magnifying colonoscopy was possible in 84.3% of the cases, compared to 78.1% that were properly diagnosed by endoscopic ultrasonography.