title: Osteoid osteoma: a report of four cases.
mesh_terms: D000328:Adult; D000368:Aged; D001859:Bone Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D008297:Male; D010017:Osteoma, Osteoid / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D011859:Radiography