Dr. Suhas S Shetty, Department of Orthopaedics, Madras Medical College, Chennai, Tamil Nadu, India E-mail: suhasshetty97@gmail.com
Abstract
Pigmented villonodular synovitis (PVNS) of the knee is a benign but locally aggressive disease of synovial proliferation that occurs in localized nodular and diffuse villous growth patterns. Although inflammatory and neoplastic causes have been hypothesized, etiology remains unknown. Presenting as unilateral knee pain and swelling, PVNS mimics other knee alignments. Radiographs are sometimes unremarkable, whereas magnetic resonance imaging may show characteristic intra-articular masses with signal dropout on T2-weighted sequences. PVNS is surgically treated with open or arthroscopic total or partial synovectomy. High recurrence rates are associated with all treatments of diffuse PVNS.
Keywords: Pigmented Villonodular Synovitis (PVNS), Tenosynovial Giant Cell Tumor (TGCT), Knee Joint, Synovectomy, Magnetic Resonance Imaging (MRI), Recurrence.
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