Abtract: Although most common in the hip and knee joints, pigmented villonodular synovitis (PVNS) has also been reported to occur in the ankle. The distinctive appearance of PVNS on magnetic resonance imaging (MRI) has proven to be useful in both the diagnosis and treatment of this pathologic process. The following is the report of a case that illustrates the utility of MRI in determining the e...

Studies published in MEDLINE between January 2010 and October 2013 were reviewed to compare open with arthroscopic synovectomy for pigmented villonodular synovitis of the knee in terms of rates of recurrence, complication, and osteoarthritis. 10 studies specifically on this topic were analysed; all were retrospective case reports, and thus level of evidence was low. Respectively after open and ...

Pigmented villonodular synovitis (PVNS) is a proliferative disorder that may lead to joint destruction and activity limitation. We conducted a retrospective study to determine the long-term results of localized PVNS (LPVNS) treated with arthroscopic excision, specifically with respect to postoperative activity level and symptom resolution. We reviewed the cases of 11 patients who had been treat...

Torsion and subsequent ischaemia is a well-recognised cause of symptoms and morbidity in general surgery. We present three cases of solitary pigmented villonodular tumours of the knee which were found to have undergone torsion. We believe these to be the first intra-articular tumours in which torsion has been reported.

Four patients who developed malignant synovial tumours are described; one with chondromatosis developed a synovial chondrosarcoma and three with pigmented villonodular synovitis developed malignant change. The relevant literature is discussed.