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Small Superficial Type Lesion (Type Ⅱ) of the Large Intestine Masao Ando 1 , Fukuji Mochizuki 1 , Akimichi Chonan 1 , Masahiro Nagano 1 , Akira Yano 1 1Department of Gastroenterology, Sendai City Medical Center Keyword: 早期大腸癌 , 表面型大腸上皮性腫瘍 , 扁平隆起性大腸病変 pp.771-778
Published Date 1990/7/25
DOI https://doi.org/10.11477/mf.1403111053
  • Abstract
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 As for superficial and flat type tumor of the colon, we advocated that type-Ⅱa tumors with evident elevation, even though their tops were flat, should rather be classified as a subtype of type-I tumor.

 Barium enema examination was useful to diagnose small superficial and flat type tumors of the colon, and it is necessary to imagine the lesions when we take or read pictures. Slight halation or faint line of the tumor was a clue to recognize the elevation of flat type-Ⅱa tumors by endoscopic examination. Dye-spreading method was effective for all type-Ⅱa lesions. Easy bleeding was peculiar to cancer compared with type-Ⅱa adenoma. Most small type-Ⅱb, type-Ⅱc, and type-Ⅱa+Ⅱc tumors were discovered by means of redness at endoscopic examination. Dye-spreading method was not always effective for these lesions.

 At present, we perform strip biopsy for small type-Ⅱ lesions without evident depression. But it will be a very important work to make criteria for endoscopic therapy for these tumors.


Copyright © 1990, 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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