Synovial Neoplasm

**Semantic type:** Neoplastic Process

**Definition:** A benign or malignant soft tissue neoplasm arising exclusively from the synovial membrane. Examples include the diffuse giant cell tumor of tendon sheath, localized giant cell tumor of tendon sheath, and malignant giant cell tumor of tendon sheath.

**Synonyms:** - Neoplasm of Synovium - Neoplasm of the Synovium - Synovial Tumor - Tumor of Synovium - Tumor of the Synovium