Shin M S, Witten D M
Am J Dig Dis. 1975 Jan;20(1):42-8. doi: 10.1007/BF01073135.
The authors present three cases in which carcinoma of the prostate simulates a primary carcinoma of the rectum. Direct invasion by prostatic carcinoma should be included in the differential diagnosis of mass lesions of the rectum in males.