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Endoscopic Estimation of Tumor Depth of Invasion of Superficial Esophageal Carcinoma Hideo Shimada 1 , Hiroyasu Makuuchi 1 , Soji Ozawa 1 , Osamu Chino 1 , Takayuki Nishi 1 , Tomoko Hanashi 1 , Soichiro Yamamoto 1 , Minoru Nakui 1 , Akito Kazuno 1 , Hiroshi Kajiwara 2 1Department of Surgery, Tokai University School of Medicine, Isehara, Japan 2Department of Pathology, Tokai University School of Medicine, Isehara, Japan Keyword: 食道表在癌 , 内視鏡診断 , 通常観察 , 深達度診断 , 内視鏡的切除 pp.1467-1481
Published Date 2010/8/25
DOI https://doi.org/10.11477/mf.1403102004
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 We estimated the tumor depth of invasion of superficial esophageal carcinoma by conventional endoscopic observation.

 One hundred and fifty cases of endoscopic resection and 86 cases of surgical operation were enrolled in this study.

 The endoscopic depth of invasion and pathological diagnosis were compared.

 Concerning all the ER cases, the accuracy rates of endoscopic tumor depth of invasion was 84% and the accuracy rate classified into three groups were as follows, T1a-EP, LPM : 91.0%, T1a-MM, SM1 : 73.8% and SM2 : 75.0%. As for surgical operation cases the accuracy rate of T1a-MM, SM1 was 86.9% and that of SM2, SM3was 89%.

 The main clinicopathological reasons for over or under-estimation were 1)minimal invasion 2)superficial spreading type lesion 3)covering by regenerated squamous epithelium 4)ductal invasion and 5)protruding type lesion.

 Estimation of tumor depth of invasion by conventional endoscopic examination is a simple and useful method.

 However, there is a limit to estimating the depth of invasion accurately by endoscopic findings reflecting only the characteristics of the tumor surface.


Copyright © 2010, Igaku-Shoin Ltd. All rights reserved.

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

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