title: Pigmented villonodular synovitis of a lumbar vertebral facet joint.
mesh_terms: D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007405:Intervertebral Disc Displacement / Q000175:diagnosis; D008159:Lumbar Vertebrae; D008875:Middle Aged; D011859:Radiography; D013122:Spinal Diseases / Q000175:diagnosis; D013585:Synovitis / Q000000981:diagnostic imaging*; D013586:Synovitis, Pigmented Villonodular / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery