Recurrent Dedifferentiated Paratesticylar Liposarcoma with Synchronous Renal Cell Carcinoma and Prostate Cancer

摘要

Paratesticular liposarcoma is a very rare cause of scrotal mass. It is thought that they arise from spermatic cord lipo-mas 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.