Advanced Gastric Carcinoma with Submucosal Growth and Low-grade Histological Atypia with Difficulty in Pathological Diagnosis by Biopsy Specimens, Report of a Case Masaaki Kobayashi 1 , Terasu Honma 1 , Mitsuya Iwafuchi 2 1The Third Department of Internal Medicine, Niigata University School of Medicine 2Department of Biomedical Technology, College of Medical Technology Niigata University Keyword: 胃癌 , 胃底腺領域 , 完全腸型腺癌 , 低異型度 , 粘膜下腫瘍 pp.1531-1535
Published Date 1999/11/25
DOI https://doi.org/10.11477/mf.1403102871
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 We report a case of gastric carcinoma with submucosal growth. A 55-year-old man underwent upper gastroendoscopic examination, which detected a 22 mm sized protruding tumor at the posterior wall of the upper body. The tumor was covered with normal-looking mucosa, but showed nodular surface and fold convergence. Histological findings revealed such low-grade atypia that biopsy examination resulted in a diagnosis of Group Ⅳ, in which the diagnosis for carcinoma is inconclusive. The patient underwent surgical resection. Pathological diagnosis was well differentiated adenocarcinoma of the complete intestinal phenotype, invading to the subserosa. The carcinoma arose from the fundic gland mucosa.

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