In a few cases, pain or tenderness is present for several years even though a mass cannot be felt. These cases can easily be m istaken for arthritis, bursitis, or synovitis. Sometimes synovial sarcoma causes other symptoms related to the location of the tumor. The diagnosis for synovial sarcoma is made by biopsy. The most common treatment for this type of cancer is surgery to remove the entire tumor, nearby muscle, and lymph nodes.
Some patients have chem otherapy, radiation therapy, or a combination of treatment methods.