Genitourinary pathology in urban male Blacks of South Africa

A 10-year study of genitourinary cancer in black urban male subjects in South Africa shows that all tumors of the genitourinary tract are rare except for nephroblastoma, which has a similar incidence to other population groups throughout the world. Carcinoma of the bladder is rare despite the endemicity of Bilharzia and, although carcinoma of the prostate is not infrequent in patients up to the seventh decade, after that the incidence is lower than in other population groups in which the rate increases steeply. In accord with other black groups throughout the world tumors of the testis are excessively rare. The comparative infrequency of carcinoma of the penis is ascribed to the relatively high rate of circumcision.