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Necessity of the Classification “Sessile Serrated Adenoma/Polyp” ? Hiroshi Tanabe 1 , Akinori Iwashita 1 1Department of Pathology, Chikushi Hospital, Fukuoka University, Chikushino, Japan Keyword: 鋸歯状病変 , sessile serrated adenoma/polyp , hyperplastic polyp , traditional serrated adenoma pp.458-461
Published Date 2011/4/25
DOI https://doi.org/10.11477/mf.1403102184
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 SSA/P(sessile serrated adenoma/polyp)is similar to HP(hyperplastic polyp)in its pathologic features, but SSA/P have mildly structural atypia, abnormality of cell proliferation, and other characteristics. SSA/P is paid attention to as a precancerous lesion of the MSI positivity cancer of the right side colon which is the site preferred as the serrated-neoplastic pathway, but confusion is caused in Japan because the pathological diagnostic criteria of SSA/P are not clear. We have the impression that a lesion such as the hyperplastic polyp with young epithelium having mildly structural atypia and eosinophilic cytoplasm like traditional serrated adenoma can be considered to be SSA/P. We think the classification“sessile serrated adenoma/polyp" is basically unnecessary, but is necessary for pathologists who cannot distinguish.


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

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