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Revista Portuguesa de Ortopedia e Traumatologia
On-line version ISSN 1646-2939
Abstract
PINHEIRO, Ana Costa et al. Episódios de derrame articular de repetição e gonalgia anterior em adolescente: Relato de caso de sinovite vilonodular pigmentada do joelho. Rev. Port. Ortop. Traum. [online]. 2016, vol.24, n.3, pp.189-197. ISSN 1646-2939.
The anterior knee pain is a common problem and a diagnostic and therapeutic challenge. Pigmented villonodular synovitis(PVNS) is a rare tumor lesion characterized by the proliferation of synovial cells and whose differential diagnosis must be included in the anterior knee pain. The synovial tumors are difficult to diagnose due to their rarity and intraarticular location, presenting magnetic resonance imaging an important role in their detection. The authors present a case of pigmented villonodular synovitis of the knee in an adolescent followed in orthopedic outpatient by right knee pain and recurrent joint effusion. She was submitted to arthroscopic lesions excision and synovectomy. Surgery and postoperative elapsed uneventful and there was relief from knee pain and strokes and there were no signs of recurrence. The aim of this study is to alert the medical community that although rare and difficult to diagnose, the PVNS of the knee, should be included in the differential diagnosis of anterior knee pain associated with recurrent joint effusion, particularly among children and adolescents. Patients not adequately treated can develop into joint destruction, hence the importance of diagnosis and timely treatment.
Keywords : Knee; adolescent; pigmented villonodular synovitis; treatment; Arthroscopy.