Soft tissue sarcoma

Soft tissue sarcoma is a form of cancer that occurs due to abnormal and uncontrolled cell growth of the "soft tissues" of the body. These tissues connect, support and surround other body parts and may include muscle, fat, blood vessels, lymph vessels, nerves, tendons and the lining of joints. Many people with early soft tissue sarcoma have no signs or symptoms of the condition. When present, symptoms depend on the location and size of the tumor but may include a palpable lump under the skin, pain, or difficulty breathing. Most cases occur sporadically in people with little to no family history of the condition. People who have previously received radiation therapy and those with certain inherited disorders (such as Gorlin syndrome, Gardner syndrome, Li-Fraumeni syndrome, Tuberous sclerosis, neurofibromatosis type 1, and Werner syndrome) have an increased risk of developing a soft tissue sarcoma. The best treatment options depend on many factors but may include surgery, chemotherapy, and radiation therapy.