[Prostate carcinosarcoma.]

To report a new case of prostatic carcinosarcoma, an uncommon and locally and distance aggressive tumor.We analyzed one case diagnosed in our Center, from clinical and pathological diagnosis to death, describing the treatments received.Patient presented a huge pelvic mass and a pulmonary metastasis that was treated with cystoprostatectomy and bilateral cutaneous ureterostomy with the diagnosis of carcinosarcoma of the prostate. He received 8 cycles of Docetaxel with bone progression and then 3 cycles of doxorubicin, suspending treatment due to progression. The survival was 18 months.Prostate carcinosarcoma is a very aggressive neoplasia that does not respond to the usual treatments of prostate cancer.