BONE LESIONS IN PIGMENTED VILLONODULAR SYNOVITIS

Pigmented villonodular synovitis.

Pigmented villonodular synovitis.

Pigmented villonodular synovitis (PVS) is an uncommon, usually monoarticular disorder encountered mainly in adults. A boy and a girl, both 7 years old, were referred because of recurrent knee effusions. Both were medically treated for other rheumatic disorders for five years. PVS was diagnosed by arthroscopy and synovectomy was curative in both cases.

Pigmented villonodular synovitis of the wrist with penetration into bone.

Invasion and erosion of bone in nodular synovitis (histiocytic xanthomatous granuloma, xanthoma, giant-cell tumour, benign synovioma) are found fairly frequently in circumscribed lesions of the tendon sheaths of hands and feet. Fletcher and Horn (1951) in particular called attention to this. Bone involvement in diffuse forms, namely “ pigmented villonodular synovitis, bursitis and tenosynovitis...

Multifocal pigmented villonodular synovitis in a child

INTRODUCTION Pigmented villonodular synovitis (PVNS) is a rare, benign proliferative disorder of the synovial membrane that typically presents in adults and affects a single joint. Multifocal PVNS is very rare, particularly in childhood. We reported a rare case of multifocal PVNS affecting over 20 joints in a child. CLINICAL PROCEDURE A 7-year-old female patient had a 6-month history of multi...

Pigmented villonodular synovitis: a disease in evolution.

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 m...