Advancement in the Diagnosis of the Gastric Submucosal Tumor Brought About by Endoscopic Ultrasonography (EUS) Tsuyoshi Aibe 1 1The First Department of Internal Medicine, Yamaguchi University School of Medicine pp.999-1008
Published Date 1989/9/25
DOI https://doi.org/10.11477/mf.1403106558
  • Abstract
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 The advantage of EUS over conventional imaging procedures in the diagnosis of gastric submucosal tumor (gastric SMT) is that it is able to clearly visualize the image of the tumor in the gastric wall. To clarify the usefulness of EUS in the diagnosis of gastric SMT, the diagnostic abilities of x-ray and endoscopic examination were investigated in 40 cases of gastric SMT and 13 cases of extra-gastric compression which had been diagnosed by EUS. As a result, the accuracy rate of x-ray and endoscopic examination was 88% (35/40 cases) in the diagnosis of gastric SMT, and 23% (3/13 cases) in that of extra-gastric compression.

 Next, in 18 cases of gastric SMT confirmed histologically, it was studied whether histological diagnosis of the SMT could be presumed through EUS findings. The result was that the internal echo-level of the SMT, the continuity between the SMT and the layered structure of the gastric wall, the location of the main lesion of the SMT and the destructive change of the layered structure surrounding the SMT on EUS images were very important indications in the presumption of the histology of the SMT, and in the differential diagnosis between malignant and benign SMT. Furthermore, we tried biopsy of the gastric SMT in 3 cases while observing the EUS images and succeeded in one case.

Copyright © 1989, Igaku-Shoin Ltd. All rights reserved.


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