[Screening using Krypto-Haem-SSWR for the early detection of colorectal carcinomas and adenomas].

In the last 30 years, colorectal carcinomas have been stated to occur markedly in all industrial countries. From colonic and rectal malignant tumors, the amounts of 4225 in 1961 and 7220 in 1984 were newly registered in GDR. Thus the number of patients with colorectal carcinomas showed the decrease for up to 70.9% starting from 1961. The biochemical Krypto-Haem-SSWR screening test has been implemented during the last few years by members of proctologic section. Colorectal carcinoma was stated in 48 asymptomatic subjects aged more than 45 years, and colonic adenoma in 83, respectively. At present, the yearly screening of occult bleeding into faeces is the unique measure contributing to early recognition of colorectal carcinomas and precancerous lesions.