Dynamic MR-imaging in the diagnosis of pigmented villonodular synovitis of the knee

• Published in: Scandinavian journal of rheumatology Vol. 29; no. 5; pp. 336 - 339
• Main Authors: DALE, K, SMITH, H-J, PAUS, A. C, REFSUM, S. B
• Format: Journal Article
• Language: English
• Published: Colchester Informa UK Ltd 2000; Taylor & Francis
• Subjects: Adolescent; Adult; Aged; Biological and medical sciences; Contrast Sensitivity; Female; Humans; Investigative techniques, diagnostic techniques (general aspects); Knee Joint - pathology; Knee Joint - surgery; Magnetic Resonance Imaging - methods; Medical sciences; Osteoarticular system. Muscles; Radiodiagnosis. Nmr imagery. Nmr spectrometry; Reference Values; Synovectomy; Synovitis, Pigmented Villonodular - diagnosis; Synovitis, Pigmented Villonodular - surgery; Knee; Human; Postoperative; Treatment efficiency; Diseases of the osteoarticular system; Exploration; Inflammatory joint disease; Nuclear magnetic resonance imaging; Pigmented villonodular synovitis; Chronic; Orthopedic surgery; Medical imagery; Diagnosis; Preoperative; Technique; Synovectomy; Contrast media
• ISSN: 0300-9742; 1502-7732
• DOI: 10.1080/030097400447778

The aim of this report was to study the rate of contrast enhancement at MRI in pigmented villonodular synovitis (PVNS). Dynamic MRI was performed in a patient with PVNS just before and 1 week and 3 years following synovectomy of the knee. As opposed to patients with rheumatic disease the patient with PVNS showed a slower enhancement rate before synovectomy than 1 week after. At 3 years follow-up the patient with PVNS showed an enhancement rate just above that of the normal controls. The results indicate that PVNS has features more common to hyperplastic or neoplastic lesions than to inflammatory ones. The results at 3 years follow-up also suggest that dynamic MRI may indicate the efficacy of arthroscopic synovectomy.