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Histological Classification of Gastric Carcinoma: Review, Problems and a New Proposal Isamu Kino 1 1The First Department of Pathology, Hamamatsu University School of Medicine Keyword: 胃癌 , 組織分類 , 病理 , 腺癌 pp.1103-1108
Published Date 1991/10/25
DOI https://doi.org/10.11477/mf.1403102659
  • Abstract
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 There are two types of histological classification of gastric carcinoma, i.e., major classification and detailed classification. Major classification includes Nakamura-Sugano's differentiated type and undifferentiated type,Lauren's intestinal type and diffuse type, Ming's expanding type and infiltrative type. Detailed classification includes classification by Japanese Research Society for Gastric Cancer (JRSGC), typing by WHO and Oota's classification.

 In WHO classification there is no item of poorly differentiated adenocarcinoma causing difficulty in general use. In classification of JRSGC, the item of poorly differentiated adenocarcinoma is cited, comprising about 30-40% of all gastric carcinomas.

 Poorly differentiated adenocarcinoma of the stomach ranges from scirrhous carcinoma with diffuse infiltration to medullary carcinoma forming a well defined mass. Most scirrhous carcinomas exhibit Borrmann 4, while medullary carcinomas Borrmann 2 or 3. Consequently the committee for histological classification of gastric carcinoma of JRSGC proposed a subclassification of poorly differentiated adenocarcinoma after long discussion, that is, solid type and non solid type. Solid type is composed of solid nests of poorly differentiated adenocarcinoma with no apparent tubular formation and little stroma (medullary). Non solid type comprises poorly differentiated adenocarcinomas other than solid type. The stroma of this type is often either abundant (scirrhous carcinoma) or not abundant, but not little (intermediate between medullary and scirrhous). Approximately 80% of poorly differentiated adenocarcinoma is non solid type and the remaining 20% solid type. Most of the solid type can be categorized in differentiated type carcinoma according to Nakamura-Sugano's major classification.


Copyright © 1991, 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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