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Differential Diagnosis of Depth of Cancerous Invasion between Mucosal Carcinoma and Submucosal Carcinoma by Radiological Study Goro Yamaki 1 1Department of Diagnostic Radiology, Toranomon Hospital Keyword: 食道上皮内癌 , 食道粘膜内癌 , 食道X線診断 , 二重造影像 pp.1027-1037
Published Date 1990/9/25
DOI https://doi.org/10.11477/mf.1403111401
  • Abstract
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 In the last seventeen years, twenty-one cases with single lesion of intraepithelial carcinoma (ep-ca.), 25 cases with single lesion of mucosal carcinoma (mm-ca.) and 59 cases with single lesion of submucosal carcinoma (sm-ca.) have been detected and resected in our hospital.

 The gross findings of ep-ca. and mm-ca. were classified into four basic types of early gastric cancer (Type Ⅰ, Ⅱa, Ⅱb and Ⅱc). On the other hand, those of sm-ca. were classified into four types (Type 1, I-like, 2, and Mixed).

 In elevated lesions larger than 1 cm, the carcinoma had invaded the submucosa. However, in superficial elevated type lesions, the carcinomas were confined to the intramucosa. This confinement of the cancerous invasion to the intramucosa was also found in superficial depressed type lesions.

 On the other hand, regardless of their size, in depressed and mixed-type lesions, the carcinoma always invaded the submucosa.

 So, it is possible for us to diagnose the depth of cancerous invasion, if we depict the lesion faithfully in the double contrast pictures.

 In radiological study, it is easy to locate the lesions with distinguished elevation or depression, but it is difficult to depict the lesions accompanied by epithelial invasion. We must interpret the irregularity of the esophageal wall first, and then interpret the irregularity of the mucosal pattern.


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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