[Screening for colorectal carcinoma in AMHTS (automated multiphasic health testing and services)].

A mass survey program for the early detection of colorectal carcinoma was tested on asymptomatic persons who visited the AMHTS (Ningen-Dokku). During a 10-month period, 4574 of 8216 persons over the age of 45 years participated in this program. They were screened by the 3-day fecal occult blood test using guiac method. Barium enema examination was performed in 50 of 84 persons who were selected by the screening tests. Tow cases of advanced carcinoma and 10 adenomas were detected.