Magnifying Endoscopic Findings of Gastric Mucosa―Differential Diagnosis of Minute Lesions Mototsugu Kato 1 1Department of Endoscopy, Hokkaido University Hospital Keyword: 胃癌 , 発赤 , 拡大内視鏡 , 微細血管 , 微細模様 pp.1679-1686
Published Date 2003/11/25
DOI https://doi.org/10.11477/mf.1403100728
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 The observation of gastric surface mucosa using magnifying endoscopy is aimed at detecting microsurface structure and microvascular architecture of the mucosa. Microvascular architecture of the mucosa includes the normal microvascular system and tumorous microvessels. Magnifying endoscopies have the advantage of clearly visualizing the microvascular architecture of the mucosa. It is useful for diagnosis of early-stage gastric cancer to clarify the minute morphological changes of erythematous gastritis. The typical appearance of erythematous gastritis seen under magnifying endoscopy is varied dilatation of the capillary network surrounding the necks of gastric pits. The superficial-depressed type of differentiated gastric cancer reveals a well-demarcated area and proliferating irregular microvessels. Magnifying endoscopic observation of microvessels may be helpful for the identification of early-stage gastric cancer, so it is necessary that endoscopists establish as soon as possible the diagnostics of microvessels of the mucosa, based on magnifying endoscopic observation.

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