In other soft tissue tumors, including synovial sarcomas, clear cell sarcomas, leiomyosarcomas, rhabdomyosarcomas, liposarcomas, malignant peripheral nerve sheath tumors, malignant fibrous histiocytomas, desmoid tumors, cutaneous squamous cell carcinomas, and rheumatoid nodules, CA-125 was negative. Here, MUC16 is linked to rheumatoid arthritis.