Liposarcoma, a type of soft tissue sarcoma, is a cancerous (malignant) tumor that develops from fat cells. Liposarcoma tumors can develop anywhere, but typically appear in the deep fat tissues of the limbs or abdomen in people ages 50 to 65. Although liposarcoma is rare, it's the most common form of soft tissue sarcoma that occurs in adults.
Jun. 27, 2013