title: Case records of the Massachusetts General Hospital. Weekly clinicopathological exercises. Case 1-1986. A 67-year-old man with Paget's disease and progressive leg weakness.
mesh_terms: D000368:Aged; D001859:Bone Neoplasms / Q000175:diagnosis; D003937:Diagnosis, Differential; D005870:Giant Cell Tumors / Q000175:diagnosis; D006101:Granuloma, Giant Cell / Q000150:complications / Q000175:diagnosis / Q000473:pathology*; D006801:Humans; D008161:Lumbosacral Region; D008297:Male; D010001:Osteitis Deformans / Q000150:complications / Q000175:diagnosis / Q000473:pathology*; D012516:Osteosarcoma / Q000175:diagnosis