A 12-year-old girl developed a myxoid liposarcoma on the inner side of her
right thigh. Liposarcomas are extremely rare at this age compared to benign
lipoblastomas, which are the most frequent tumors of fatty tissue in child
hood. The prognosis of myxoid liposarcoma is good, especially when, as in t
his patient, the tumor is located in the subcutis where a large and deep ex
cision is possible and often curative.