Depressed-Type Early Colon Cancer Showing Laterally Spreading Growth, Report of a Case Takashi Fujisawa 1 , Haruhiko Hagino 1 1Department of Internal Medicine, Harima Hospital of Ishikawajima-Harima Heavy Industries, Health Insurance Society Keyword: 非顆粒型側方発育型腫瘍 , 表面陥凹型大腸癌 , pit pattem pp.923-928
Published Date 1998/5/25
DOI https://doi.org/10.11477/mf.1403103735
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 A 63-year-old man was admitted to our hospital for the sake of further examination of positive stool Hb. Endoscopic picture showed, in the rectosigmoid colon, a type Ⅱc + Ⅱa tumor with pseudoprodia-like appearance and a nodule in the depressed area. A high anterior rectal resection was performed. Stereo-microscopic picture showed ⅢL+ⅢS+Ⅳ pit in the depressed area and ⅢL pit in the marginal elevation, which suggests laterally-spreading growth. The resected specimen showed type Ⅱc + Ⅱa early colon cancer, measuring 15×10 mm in size. Histological examination showed well differentiated adenocarcinoma with scanty invasion of the submucosa. This case was thought to belong to the non-granular type of laterally spreading tumor.

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