摘要
Pigmented villonodular synovitis, a group of diseases caused by proliferation of lining tissues in joint and tendon sheath with its etiology unknown,
Pigmented villonodular synovitis, a group of diseases caused by proliferation of lining tissues in joint and tendon sheath with its etiology unknown, manifested as brownish red protrusive synovial villus and nodular proliferative benign neoplasm, can erode joint cartilage and bone tissues. It is divided into limited type and nodular type with its incidence at 1.8 per million of population. Diffuse pigmented villonodular synovitis mainly affects knee joints and is rarely seen in other joins. It is occult in onset and occurs in simple ioint with Joint swell and discomfort.
