Recurrent dedifferentiated paratesticular liposarcoma with synchronous renal cell carcinoma and prostate cancer.

[dedifferentiated liposarcoma]

Paratesticular liposarcoma is a very rare cause of scrotal mass . It is thought that they arise from spermatic cord lipomas most commonly . While well differentiated tumors tend to share many histological similarities with dedifferentiated tumors , the latter has a much more aggressive phenotype . We present an unusual case of a 69 -year -old male with synchronous prostate adenocarcinoma and unilateral renal cell carcinoma who was found to have a dedifferentiated paratesticular liposarcoma . Treatment was with radical resection , preserving the testis , followed by radiotherapy . Unusually recurrence did not occur until 4 years following initial treatment . This case demonstrates the high propensity of dedifferentiated liposarcoma to recur locally and examines the most frequently employed management strategies .