Benign and Malignant Tumors of Joints and Synovium
- 1. The majority of mass lesions in the joints are benign.
- 2. The most common benign joint neoplasms are tenosynovial giant cell tumors (TGCTs) and synovial chondromatosis. Both are best diagnosed by magnetic resonance imaging (MRI) followed by biopsy.
- 3. The most common malignant tumor of the joint is synovial sarcoma.
- 4. A benign or malignant neoplasm of the joint should be considered in any patient with a nontraumatic hemarthrosis.