Tags: Disease.
Pigmented villonodular synovitis (PVNS) is a joint disease characterized by inflammation and overgrowth of the joint lining. It usually affects the hip or knee. It can also occur in the shoulder ankle elbow hand or foot. In PVNS the lining of the joint called the synovium becomes swollen and grows. This growth harms the bone next to the joint. The lining also makes extra fluid that can cause swelling and make movement painful.
