Seventy eight colonic disease (10.7%) with 12 cancers (1.7%) and 66 adenomas (9 %) were detected by preoperative barium enema out of 726 patients with upper gastroenterological disease from Janurary 1986 to May 1988 at the Juntendo University Hospital, First dept. of surgery. 726 patients were selected in this study 389 stomach disease, 299 with biliary-tract desease, 28 with pancreas disease, 10 with liver disease. 366 were male and 360 were female with a mean age of 60 years. Among stomach

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... ease, 47 colon disease were found, six cancers (1.5%) and 41 adenomas (12%). Among biliary disease, 26 cases (8.7%) with three cancers (1 %) and 23 adenomas (7.7%), among pancreatic disease, three cases (10.7%) with two cancer (7 %) and one adenoma (3.6%), among liver disease, two cases (20%) with one cancer (10%) and one adenoma (10%) were found. These occult colonic disease tend to accompanied with the patient over fifty years old. Most of the lesion with over 10 mm of diameter were tend to found as cancer. As the number of patients with colonic cancer is increasing recently, preoperative colonic survey is neccessary.