title: Diffuse pigmented villonodular synovitis of the knee mimicking primary bone neoplasms. A report of two cases.
mesh_terms: D000328:Adult; D001859:Bone Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D003937:Diagnosis, Differential; D005870:Giant Cell Tumors / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D007719:Knee Joint; D008297:Male; D011859:Radiography; D013585:Synovitis / Q000175:diagnosis*; D013586:Synovitis, Pigmented Villonodular / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology