Diagnosis of Depth Invasion of Gastric Cancer by Means of Ultrasonic Endoscope T. Aibe 1 1The First Department of Internal Medicine, Yamaguchi University, School of Medicine pp.1299-1304
Published Date 1984/12/25
DOI https://doi.org/10.11477/mf.1403109501
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 In the diagnosis of the depth invasion of ten cases with early gastric cancer, the rate of the diagnostic accuracy was 60% in the x-ray and endoscopic examinations. While, the ratio of the diagnostic accuracy was 70% in the endoscopic ultrasonography. There were two reasons in the wrong diagnosis of the endoscopic ultrasonography. One was the appearance of a ghost echo in a case of superficial type (type Ⅱa) and the other was the existence of fibrosis in a case of depressed type (type Ⅱc+Ⅲ). It was showed in a case of type Ⅱa+Ⅱc that the submucosal layer was depressed and deviated strongly by cancer. It was suggested that a case of flat type (Ⅱb) could be visualized as a thickened mucosal layer.

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