.... The carcinosarcoma was resistant to anti-androgen therapy, and the patient showed low level of serum prostatic acid phosphatase and was free from bony metastases despite multile metastases to the lung, liver, pancreas, para-aortic lymph nodes, spleen and penis. The sarcomatous component consisted of chondrosarcoma...

... with platinum-based chemotherapy. Chondrosarcoma has rarely been reported as a component of the second non-germ cell malignancy. We report the case of a 37-year-old man who developed a chondrosarcoma in a recurrent retroperitoneal mass after chemotherapy for testicular germ cell tumor. Malignant transformation...