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Extent of Differentiated Gastric Adenocarcinomas can be Diagnosed by Vascular Pattern and White Zone Using Magnifying Endoscopy with NBI Kazuyoshi Yagi 1 , Toshifumi Sato 1 , Atsuo Nakamura 1 , Atsuo Sekine 1 1Department of internal Medicine, Niigata Prefectural Yoshida Hospital, Tsubame, Japan Keyword: NBI , 拡大内視鏡 , 胃癌 , 酢酸 , インジゴカルミン pp.663-674
Published Date 2009/4/24
DOI https://doi.org/10.11477/mf.1403101637
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 The vascular patterns of differentiated adenocarcinomas were classified as mesh pattern and loop pattern. In case of mesh pattern, when the white zone, which indicates loss of mucosal pattern and mesh-like vascular pattern is no longer appearent, the extent of the cancer can be diagnosed. In case of loop pattern, unclear white zone, irregular and smaller mucosal pattern and irregular vascular pattern are indicators for diagnosis of cancerous extent.

 The methods using acetic acid and indigocarmine with acetic acid have been called by authors “chemical-chromoendoscopy”. By using acetic acid(dynamic chemical method), a cancerous lesion is observed as a red area and the non-cancerous mucosa is observed as a white area because whitening due to acetic acid disappears in the cancerous area. In using indigocarmine with acetic acid(indigocarmine-acetic acid sandwich method), the cancerous lesion is observed as an indigocarmine-free area and non-cancerous mucosa is seen as the area to which indigocarmine adheres.


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

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