Soft Tissue Cancer Health Center

Soft tissue sarcomas usually appear as a lump or mass, but they rarely cause pain, swelling, or other symptoms. A lump or mass might not be a sarcoma; it could be benign (noncancerous), a different type of cancer, or another problem. It is important to see a doctor about any physical change, such as a lump or mass, because only a doctor can make a diagnosis.