Sarcomatoid carcinoma of the prostate: A new case.

The authors report a case of sarcomatoid carcinoma of the prostate in a 49- year-old patient. The clinical symptoms were dominated by dysuria and frequ ency. Digital rectal examination showed a very large, hard and irregular pr ostate. Serum PSA was normal. Transrectal ultrasonography and abdominopelvi c computed tomography showed a heterogeneous mass occupying the vesico-pros tatic junction. The patient underwent cystoprostatectomy. Histological exam ination of the cystoprostatectomy specimen revealed a tumour composed of sp indle cells expressing epithelial markers on immunohistochemical analysis a nd concluded on a diagnosis of sarcomatoid carcinoma of the prostate. The p atient died seven months after cystoprostatectomy.