Dear Editor,rnThe concept of dedifferentiated liposarcoma (DDL) was first proposed by Evans in 1979. Liposarcomas, including DDL and well-differentiated liposarcoma (WDL), occur most frequently in 50- to 70-year-old men within the retroperitoneum or extremities. DDL has a propensity for local recurrence, but distant metastasis is rare. Retroperitoneal DDL has a significantly worse prognosis than disease at other locations. As paratesticular DDL is a rare entity, clinicians need to differentiate it from other common scrotal neoplasms or swelling diseases.