Pigmented Villonodular Synovitis (PVNS)
Pigmented villonodular synovitis from WikiPedia
What is pigmented villonodular synovitis?
Pigmented villonodular synovitis (PVNS) is a joint problem that usually affects the hip or knee. It can also occur in the shoulder, ankle, elbow, hand or foot.
When you have PVNS, the lining of a joint becomes swollen and grows. This growth harms the bone around the joint. The lining also makes extra fluid that can cause swelling and make movement very painful.
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