Pigmented Villonodular Synovitis Causing Painless Chronic Knee Swelling in an Adolescent

Author:

Brenner Joel S.1

Affiliation:

1. Department of Pediatrics, Sports Medicine and Adolescent Medicine Division, Eastern Virginia Medical School, Norfolk, Virginia,

Abstract

It is uncommon for an adolescent to present with a painless chronic knee effusion without a history of trauma. Acute knee effusions are usually caused by internal derangement, patellar dislocations, or fractures. The differential diagnosis of a chronic knee effusion must include the more uncommon diagnoses of juvenile rheumatoid arthritis, septic arthritis, reactive arthritis, synovial osteochondromatosis, synovial hemangioma, synovial sarcoma, or pigmented villonodular synovitis. Radiographic imaging, plain radiographs, and magnetic resonance imaging in addition to a biopsy specimen are most helpful in differentiating these diagnoses. Pigmented villonodular synovitis is an uncommon diagnosis that is rarely seen in an adolescent. Treatment includes synovectomy via arthroscopy or open arthrotomy.

Publisher

SAGE Publications

Subject

Pediatrics, Perinatology and Child Health

Reference18 articles.

1. Haims A., Jokl P. Pigmented villonodular synovitis. In: Johnson TR, Steinbach LS, eds. Essentials of Musculoskeletal Imaging. Rosemont, IL: American Academy of Orthopaedic Surgeons; 2004:533-534.

2. Pigmented villonodular synovitis of the knee. The results of total arthroscopic synovectomy, partial, arthroscopic synovectomy, and arthroscopic local excision.

3. TREATMENT OF ADVANCED PRIMARY AND RECURRENT DIFFUSE PIGMENTED VILLONODULAR SYNOVITIS OF THE KNEE

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