[Prostatic urothelial location of a tumor of the bladder].

Prostatic urothelial carcinoma concomitant with a bladder tumour is rare, but its incidence is increasing due to the precision of histological examination and the prevalence of bladder carcinoma in situ. Its prognosis depends on the depth of the prostatic lesion: carcinoma in situ, involvement of the ducts or even the stroma. In the case of high grade bladder tumour, multifocal tumour or bladder carcinoma in situ, a transurethral resection of the prostate is the best way of detecting this lesion. The therapeutic options depend on the depth of the prostatic invasion.