Pigmented Villonodular Synovitis of The Knee Presenting As A Popliteal Cyst (A Case Report)

Abstract

Pigmented villonodular synovitis is a locally agressive tumor of the synovium of joints and tendon sheats. It is commonly seen in the synovial lining of the flexor tendons of the hand and in the synovium of the knee and less commonly in other joints. In this case report, a pigmented villonodular synovitis case of the knee in a 60-year-old man, with an intraarticular origin extending extraarticularly, is represented. The interesting point was that the initial diagnosis was a Baker cyst.