Y. Oguro 1 1Department of Internal Medicine, National Cancer Center, Hospital pp.47-56
Published Date 1981/1/25
DOI https://doi.org/10.11477/mf.1403107901

 Recently I have an impression that macroscopic and morphological types of the early gastric cancer are said to look different from what they uced to. As it is said that epidemiologically there are no great changes in circumstances of cancer evolution among the Japanese, my impression is based on the progress of endoscopic instruments and accumulated knowledge of diagnostics in this field.

 The surface of the lens in GTF types can now be washed with water, and since they have become singlelens cameras, a more precise view and pictures of the mucosal surface of the stomach can now be obtained. We can observe better. Excellent panendoscopes have been developed. Gastric biopsy has made progress and has come to have wider use. All these factors contribute to the progress of endoscopic instruments and knowledge obtained thereby.

 Retrospective studies of endoscopic pictures have made it possible to elucidate greatly the incipient stage of gastric cancer and its natural history.

 Conventional diagnostic criteria for the early cancer of the stomach established in 1972 are already under reform by the progress in diagnostic and biopsy measures. In other words, gastric cancer is now detected by biopsy out of lesions in earlier stages, hard to discreminate whether macroscopically it is benign or malignant.

 I believe that changes in appearance of the early gastric cancer are no more than superficial. Cancers are merely detected and diagnosed in earlier stages as such.

Copyright © 1981, Igaku-Shoin Ltd. All rights reserved.


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