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Pigmented villonodular synovitis of the temporomandibular joint

Abstract The first case of pigmented villonodular synovitis of the temporomandibular joint in a Chinese patient is reported. The dinicopathological features are described and the presentation as a parotid mass is emphasized. This rare tumour requires a high clinical suspicion for diagnosis. For removal, meticulous dissection of tumour and facial nerve is necessary.