The Depth of Invasion in Depressed Gastric Cancer Estimated by Roentgenography and Endoscopic Ultrasonography Junji Yoshino 1 , Saburo Nakazawa 1 1The Second Department of Internal Medicine, Nagoya University School of Medicine pp.169-177
Published Date 1987/2/25
DOI https://doi.org/10.11477/mf.1403112207
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 Roentgenography and endoscopic ultrasonography were compared with respect to the accuracy in estimating the depth of ivasion in depressed gastric cancer. The depth of invasion was accurately estimated by roentgenography in 73.0% for the mucosal layer, in 64.7% for the submucosal layer, and in 75.0% for the advanced stage. On the other hand, the accuracies were 83.3%, 71.4%, and 100%, respectively, by endoscopic ultrasonography.

 Ultrasonographic findings in gastric cancer were classified into seven types. According to this classification, gastric cancers showing type Ⅰ, Ⅱ-1, or Ⅱ-2 were diagnosed as mucosal cancers, those showing type Ⅱ-3 or Ⅲ as submucosal cancers, those showing type A or B as advanced cancers.

 It was difficult to differentiate submucosal invasion from deeper invasion beyond the proper muscle layer by roentgenography. Ultrasonography, however, could clearly make such differentiation in a few cases. In any case, microscopic invasion was not satisfactorily diagnosed by either method.

Copyright © 1987, Igaku-Shoin Ltd. All rights reserved.


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