The simultaneous occurrence of carcinoma of the rectum and prostate is
observed in 6%. Ablative surgery in two sessions is technically more
difficult than in a single session. This is demonstrated by the succes
sful outcome of a patient treated for such a double carcinoma without
colostomy. In contrast to an accidental rectal injury, the thorough bo
wel preparation in this planned procedure enabled a single-session res
ection of the two cancers.