Paget's disease of bone.
D001859:Bone Neoplasms / Q000150:complications; D001862:Bone Resorption; D005260:Female; D005598:Fractures, Spontaneous / Q000209:etiology; D006801:Humans; D008875:Middle Aged; D010001:Osteitis Deformans / Q000150:complications / Q000175:diagnosis* / Q000473:pathology / Q000628:therapy; D012509:Sarcoma / Q000150:complications