[Incidental carcinoma of the prostate. Study of 683 patients operated upon for benign prostatic hypertrophy].

During the period 1988-1990, 683 patients with diagnosis of benign prostatic hyperplasia underwent transvesical prostatectomy. The purpose of the study was to establish the possible presence of incidental carcinoma of the prostate (ICP). Prostatic tissue was studied with sections taken every 0.5 cm. The incidence of ICP was 12.00%. The mean age of patients was 73.5 years. 60.98% of tumors classified T1a, 39.02% T1b. No case of G3 tumor was observed while 92.68% of neoplasms was classified G1 and 7.32% G2. 74.95% of tumoral nests into the prostatic tissue had a breadth about one millimetre.