A rare, benign, inflammatory disorder of the synovial membranes of joints, bursae, and tendon sheaths best describes the following:

Question

Quizplus · Accepted Answer

The given description is most consistent with pigmented villonodular tenosynovitis (PVNS), which is a rare, benign, inflammatory disorder that affects the synovial membranes of joints, bursae, and tendon sheaths. It is characterized by the formation of nodular, pigmented masses that can cause pain, stiffness, and limited range of motion. Synoviosarcoma is a malignant tumor of the synovial tissue, rhabdomyosarcoma is a malignant tumor of skeletal muscle, and synoviochondrometaplasia is a noninflammatory condition where synovial tissue is replaced by cartilage.

A Rare, Benign, Inflammatory Disorder of the Synovial Membranes of Joints