Related Experiment Videos
Pigmented villonodular synovitis: a disease in evolution
Henda Bouali1, Eric J Deppert, Lawrence J Leventhal
1Department of Rheumatology, The Graduate Hospital, Philadelphia, Pennsylvania, USA. boualih@musc.edu
Abstract:
Pigmented villonodular synovitis (PVNS) is a rare, benign, proliferative disease of the synovial membrane of joints, tendon sheaths, and bursas. Joint aspiration typically yields hemorrhagic or xanthochromic/serosanguinous (brown, murky) fluid. We describe a case of PVNS that presented as an acute, painless, nontraumatic right knee effusion with clear synovial fluid on arthrocentesis. Initial magnetic resonance imaging of the knee revealed no evidence for hemosiderin. A diagnostic arthroscopy and surgical arthrotomy revealed a unique case of PVNS evolving from local to diffuse involvement of the synovium.
Related Concept Videos
Nephrotic Syndrome I : Introduction
Chronic Pancreatitis II: Pathophysiology
Parkinson Disease ll: Pathophysiology
Type I Diabetes II: Pathophysiology
Inflammatory Bowel Disease IV: Clinical Manifestations
Pulmonary Hypertension: Classification and Pathogenesis
There are various classifications for PH, each relating to different underlying causes and also...