The text provides a comprehensive overview of liposarcoma, a type of cancer originating in fat cells. It details the different subtypes of liposarcoma, their varying aggressiveness, and common symptoms. The information also covers diagnostic methods, including imaging and biopsy, and treatment options such as surgery, radiation, and chemotherapy. Risk factors, such as chemical exposure and genetic predisposition, are discussed. Finally, the text highlights the expertise of the Penn Medicine Sarcoma Program in diagnosing and treating this cancer.