Pattern of bladder cancer in the Sudan and its relation to schistosomiasis: a study of 255 vesical carcinomas.

Two hundred and fifty five vesical carcinomas in Sudanese patients are analysed as regards frequency, age, sex, local geographical distribution, morphological features and association with urinary schistosomiasis. The findings are compared with those from other series. It is concluded that the pattern of bladder cancer in the Sudan in general conforms to that reported from regions endemic for schistosomiasis and differs significantly from that seen in non-schistosomal regions. The limitations in the study are noted.