Japanese

Characteristics of Small Undifferentiated Gastric Cancer with Respect to Background Mucosa Tozo Hosoi 1 1Tokyo Metropolitan Cancer Detection Center pp.1387-1397
Published Date 1989/12/25
DOI https://doi.org/10.11477/mf.1403106640
  • Abstract
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 Clinicopathological study was undertaken by comparing small undifferentiated gastric cancer (82 lesions in 74 cases) with differentiated early type (166 lesions in 143 cases) and advanced type (25 lesions in 25 cases) cancers. Longer diameter was less than 20 mm in all lesions.

 Undifferentiated early cancer was distinguished from differentiated type in that the former occurred far more frequently in females and younger patients. Complication rate of Ul and frequency of sm type were much higher in an undifferentiated early cancer group than in a differentiated early cancer group. Nature of undifferentiated early cancer differed according to its background mucosa. Comparison of it with advanced gastric cancer regarding sex ratio, average age, and distribusion suggested that the lesions of F area transform with high probability to linitis plastica type. It was also suggested that the lesions of I area are likely to be detected early because of its structural changes, i.e., higher Ul complication rate and frequency of sm type. Contrary to undifferentiated cancers of other areas, the lesions of P area tend to resemble differentiated cancer clinicopathologically.


Copyright © 1989, 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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