Liposarcoma develops from the fat cells found all over the body. It can occur anywhere throughout the body but most commonly on the trunk, limbs and in the retroperitoneum.
There are four main types of liposarcoma: well-differentiated liposarcoma, dedifferentiated liposarcoma, myxoid/round-cell liposarcoma, and pleomorphic liposarcoma.
Liposarcoma occurs mainly in adults and is very rare in people under the age of 30.
WDLS is the most common subtype of liposarcoma, making up about 50% of all liposarcoma diagnoses.
Dedifferentiated liposarcoma (DDLS) progresses from well-differentiated liposarcoma.