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The diagnostic precision of routine panendoscopy in the detection of early cancer of the stomach

, : The diagnostic precision of routine panendoscopy in the detection of early cancer of the stomach. Stomach & Intestine (Tokyo) 20(9): 949-954

One hundred and eighty three cancer cases were detected out of 12,405 gastric mass screening subjects over 50 years of age. They all underwent direct x-ray, followed by panendoscopic examination. The detectability rate was 2.04% (135 males) and 0.82% (48 females). 126 cases (131 lesions) were detected as early cancer. Those early cancers (Group II) detected are more likely to be in a smaller size range than those (Group I) detected by conventional mass screening or at outpatient clinics. Furthermore, lesion on the anterior wall site, in the upper part and along the greater curvature tended to be detected more frequently in Group II than Group I. Approximately 25% of the cancers were not well visualized on routine x-ray images many of them being located in the upper part of the stomach, on the anterior wall site and along the greater curvature. In contrast, approximately 10% of cancers impossible to visualize on detailed x-ray images were Type-IIb or minute cancer. From the 12,405 samples, 4,911 were followed up, of which 82 were initially diagnosed as cancerous, 1,189 cases were examined endoscopically, 3,640 cases by means of a questionnaire. A total of 14 cancers were detected, 6 advanced and 8 early. The advanced cancers were detected over a 3 year period, all located in the upper part of the stomach, and were predominantly scirrhus cancers. Eighty two cancers had been detected initially, making a total of 96 cancer cases. The six advanced cancers therefore represent 6.3% of the total.

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