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Early Gastric Cancer Derived from a Hyperplastic Polyp, Report of a Case Toshihiko Kobayashi 1 , Taizo Kimura 1 , Masayuki Yoshida 1 , Isamu Kino 2 , Tohru Miyahara 3 1The First Department of Surgery, Hamamatsu University School of Medicine 2The First Department of Pathology, Hamamatsu University School of Medicine 3Department of Surgery, Tokyo Rosai Hospital Keyword: 胃過形成性ポリープ , 癌化 pp.723-728
Published Date 1994/6/25
DOI https://doi.org/10.11477/mf.1403105837

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  • Abstract
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 A case of early gastric cancer, which is thought to arise from a hyperplastic polyp, is reported.

 A 54-year-old male was diagnosed with a hyperplastic polyp by medical check-up in 1978. The lesion was located in the antrum and was about 1 cm in size. Annual endoscopic examination for the subsequent six years had not revealed any changes in size and histological examinations of the lesion except for slight changes in the macroscopic shape. In 1984, the biopsy specimen of the lesion disclosed well differentiated adenocarcinoma, and partial gastrectomy was performed. Macroscopic findings of the specimen showed an elevated lesion, 3.3×2.2×1.0 cm in size, with a small depression in the center. Microscopically, Most of the lesion was occupied by carcinomatous component, but hyperplastic lesion remained peripherally. The depth of invasion was limited within the submucosal layer, and no lymph node metastasis was detected.


Copyright © 1994, Igaku-Shoin Ltd. All rights reserved.

基本情報

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

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