Surgery

Magnetic resonance imaging

Orthopedic surgery

Arthritis

Synovitis

Retrospective cohort study

Medicine

Pigmented villonodular synovitis

Lesion

Internal medicine

Radiology

PubMed

Pigmented Villonodular Synovitis (PVNS) is a benign and uncommon clinical entity, characterized by excessive proliferation of synovial membrane of joints, tendon sheaths and bursas. The objective of this study was to evaluate demographic and clinical parameters, diagnostic and treatment procedures and the outcome of 28 patients with PVNS.Retrospective study of the histologically proven cases of PVNS, diagnosed between January 1998 and April 2010 in the Orthopaedics Department of Coimbra University Hospital. Clinical data were reviewed for each patient and the following parameters were evaluated: gender, age at diagnosis, initial clinical symptoms and site of onset, symptom duration, main imaging findings (x-ray and magnetic resonance imaging of the involved structure), histological features of the lesion, treatment, follow-up duration, evidence of recurrence and time between surgery and recurrence.A total of 28 patients with histologically proven PVNS were included. The majority of patients were female (53.6%...

[Pigmented Villonodular Synovitis: a diagnostic challenge. Review of 28 cases].