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Basic Diagnosis of Early Gastric Cancer:Conventional Endoscopic Diagnosis Shuichi Ohara 1 , Yutaka Kondo 1 , Akihiro Saito 1 , Tomoko Handa 1 , Yasushi Tamabuchi 1 , Takafumi Shimizu 1 , Hiroki Saito 1 , Yuki Ohara 1 , Yohei Takeda 1 , Shiro Hamada 1 , Manabu Shiraki 1 , Yasuhiro Kojima 1 , Noriyuki Iwama 2 , Fumie Nakayama 2 1Department of Gastroenterology, Tohoku Rousai Hospital, Sendai, Japan 2Department of Pathology, Tohoku Rousai Hospital, Sendai, Japan Keyword: 浸潤範囲 , 深達度 , 色調差 , インジゴ酢酸撒布 pp.597-610
Published Date 2018/5/24
DOI https://doi.org/10.11477/mf.1403201356
  • Abstract
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 A wide range of image-enhanced endoscopy techniques exist for gastrointestinal tract diagnoses. However, not all these advanced technologies are available for endoscopic examinations in specific institutions. Most institutions, in fact, conduct examinations and diagnoses by the conventional method using normal light ; thus, we consider the normal light examination as a standard. Information that can normally be obtained during an endoscopic examination includes the color tone, shape(including unevenness), and mucosal pattern. Diagnosis of the affected area and invasion depth is based on this information. For diagnosis of an area affected by gastric cancer, a relatively simple method involving the use of an acetic acid and indigo carmine mixture is also available depending on the case that allows for the detection of mucosal pattern changes such as color tone differences and mucosal atrophy. However, diagnosis of invasion depth is done by examining only the lesion surface. Therefore, in some cases, diagnosis is difficult, and other variables such as unevenness, marginal ridges, and extension failure, which can all be identified by dynamic observations, should be taken into consideration.


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

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