CA: A Cancer Journal for Clinicians, Vol 8, 197-200, Copyright
© 1958 by American Cancer Society
Progress in Cancer Detection
II. Cancer Prevention and Detection in the Anus, Rectum and Colon
A cancer prevention and detection program is for asymptomatic patients and must permit periodic repetition without undue inconvenience or expense. Carefully performed inspection of the perianal area, bidigital rectal examination and proctosigmoidoscopy constutute an adequate routine and should be repeated annually. Barium enema roentgenography and cytologic examination of the colon are added only when indicated by findings or symptoms. The fact that some highlying lesions will be missed must be accepted within the practical limitations of a detection program.