title: Pigmented villonodular synovitis of the knee: A case report.
abstract: Pigmented villonodular synovitis (PVNS) is characterized by hyperplasia of the synovial tissue in joints, of tendon sheaths, and of the mucous membranes, or fibrous tissue adjacent to the tendons. Its etiology is unknown. We report a case of diffuse intra-articular PVNS of the right knee in a 38-year-old man. Ultrasound and magnetic resonance imaging (MRI) features of the disease are described.
authors: Department of Radiology, Umberto I Medical Center, "Sapienza" University of Rome, Rome, Italy.
authors: E
authors: E
authors: Bassetti
authors: R
authors: R
authors: Candreva
authors: E
authors: E
authors: Santucci
keywords: Knee; MRI; Pigmented villonodular synovitis; Ultrasound examination
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