Accidental diagnosed disease of pigmented villonodular synovitis of the knee joint with multi ligament knee post infection: A case report

Pigmented Villonodular Synovitis (PVNS) is a rare, benign, but potentially locally aggressive and recurrent condition characterized by synovial proliferation and hemosiderin deposition inside the joints, tendon sheaths, and bursae. It usually affects the large joints such as hip, knee, and ankle. We report a case of PVNS of the knee joint in a 45Y old male was treated initially by Arthroscopic Posterior Cruciate Ligament reconstruction, the patient developed knee infection repeated procedures like arthroscopic wash of the knee and at later stage subtotal synovectomy was done and confirmed the disease histologically. At the 7-month follow-up, the patient was pain free and had no signs of disease recurrence.