Real Effects of Endoscopic Biopsy for Early Gastric Cancer S. Suzuki 1 1Institute of Gastroenterology, Tokyo Women's Medical College pp.943-948
Published Date 1983/9/25
DOI https://doi.org/10.11477/mf.1403109344
  • Abstract
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 It is very difficult to evaluate the result of biopsy for early gastric cancer because in many cases, the diagnosis of the lesion is made from the study of the biopsy specimens. Thus, the real effects of endoscopic biopsy was sought by examining the biopsy results in various parts of the stomach after dividing early gastric cancer into the elevated and depressed types. Subsequently, the effects were also studied in those of Ⅱb type and microcancer.

 The diagnostic rate of the elevated type (109 lesions) was 95.4%, and each rate on the lesser curvature of the antrum, the posterior wall and greater curvature of the corpus was poor. Moreover, the biopsy results from the lesion less than 2 cm in diameter was also poorer. In the depressed type (257 lesions), it was 94.9%, and each rate on the lesser curvature of the antrum and corpus was worse. But, the size of the depressed lesions did not affect the result of biopsy.

 In the diagnosis of Ⅱb type of the early cancer and microcancer (≦5 mm in diameter), the role of endoscopic biopsy must be especially important. Thus, the diagnostic process was analyzed. Seventeen (29.3%) of 58 lesions of Ⅱb have been diagnosed only with biopsy. Endoscopic findings were mainly classifted into two: red and white discolorations of the gastric mucosa. In order to detect more lesions of Ⅱb, it is more important that these two findings are carefully observed and accurate biopsy must be performed.

 Forty-nine lesions of microcancer have been detected in our institute, but only 25 lesions (51.0%) of them were diagnosed with gastric biopsy. And, a special feature of the biopsy from the microcancer showed, statistically, the importance of the first specimen in the several specimens obtained.

 These showed that further improvement of the fiberscope, development and application of a more helpful method for easy biopsy such as dye endoscopy, and training of competent endoscopists are essentially vital.

Copyright © 1983, Igaku-Shoin Ltd. All rights reserved.


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