Liposarcoma, primary site

**Definition:** Liposarcoma, a type of soft tissue sarcoma, describes a group of lipomatous tumours of varying severity ranging from slow-growing to aggressive and metastatic. Liposarcomas are most often located in the lower extremities or retroperitoneum, but they can also occur in the upper extremities, neck, peritoneal cavity, spermatic cord, breast, vulva and axilla.