[Results of coloscopy of polypectomy in the years 1974-1975 at the Basel county hospital].

The diagnostic value of coloscopy was assessed by analysis of the endoscopic findings in 310 patients investigated between January 1974 and December 1975. Altogether, 342 coloscopies were performed with a complication rate of 1.5% (3 perforations, 2 hemorrhages). Polyposis of the colon, inconclusive radiologic findings and search for a bleeding source were the main indications for the endscopic examination of the colon. Special attention was focused on polyposis, its distribution and estension, radiological appearance and histology. 65% of the polyps with a known tendency to become malignant were found beyond the reach of the rigid rectosigmoidoscope. However, 98% were localized below the splenic flexure.