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Japanese

Clinicopathological Studies on Early Gastric Cancer-Especially, its Relationship with the Fundic-pyloric Gland Area Masahito Oida 1 , Yoshiki Kida 1 , Hiroshi Imaizumi 1 1Department of Internal Medicine, Kitasato University, School of Medicine Keyword: 腺領域 , 胃癌 , 癌巣背景粘膜 , 微小胃癌 , 表層拡大型胃癌 pp.1599-1605
Published Date 1997/11/25
DOI https://doi.org/10.11477/mf.1403105245
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 Eight hundred and sixty three early gastric cancers consisted of 284 undifferentiated-type cases and 579 differentiated-type cases were evaluated in terms of the background mucosa in which the lesion were located. Eighty minute gastric cancers (17 undifferentiated-type cases and 63 differentiated-type cases) and 48 superficially-spreading type gastric cancers (17 undifferentiated-type cases and 31 differentiated-type cases) selected from the above cases were also studied under the same aspect.

 Early gastric cancers were mostly distributed in the pyloric gland area (80%), and the remaining were located in the intermediate zone (14%) or in the fundic gland area (6%). In the pyloric gland area, differentiated-type was found in 74% of the cases, while undifferentiated-type was found in 83% of the cases in the fundic gland area. Macroscopically, protruded type was seen in 28% of the cases in the pyloric gland area, while depressed type was seen in 95% of the cases in the fundic gland area. The ratio of cancer invasion limited to the mucosa was 68% of the cases in the pyloric gland area, but 38% of the cases in the fundic gland area. Furthermore, all of the minute gastric cancers located in the fundic gland area were undifferentiated-type showing macroscopically depressed features. The majority of the superficially-spreading type gastric cancers were distributed on the lessor curvature (38%) in C area (73%). Histologically, all of them were mainly located in the pyloric gland area, and invasion of the fundic gland area was rarely seen.

 These results suggest that the existence, characteristics and size of an early gastric cancer may be estimated when endoscopic study considering the background mucosa in which the lesion is located is performed. We believe this knowledge may contribute significantly to clinical diagnosis of early gastric cancer.


Copyright © 1997, 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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