Summary
Pigmented villonodular synovitis (PVNS) and giant cell tumor of tendon sheath are benign tumors that are characterized by invasive and destructive proliferation of synovial tissue within a joint or tendon sheath.
Complete Information on this Tumor
Pigmented villonodular synovitis (PVNS) and giant cell tumor of tendon sheath are benign tumors that are characterized by invasive and destructive proliferation of synovial tissue within a joint or tendon sheath. The ankle is the third most common location for diffuse intra-articular PVNS. The ankle and hindfoot is affected approximately twice as often as the forefoot.
The lesion most commonly presents as a localized, nodular mass in or adjacent to a joint or tendon sheath. The nodular form occurs around the joints and tendons of the hands and feet. The diffuse form usually involves larger joints, and may involve several adjacent joints.