title: Osteonecrosis and sarcoma following external irradiation of intracerebral tumors.
mesh_terms: D000293:Adolescent; D000328:Adult; D001254:Astrocytoma / Q000532:radiotherapy*; D001847:Bone Diseases / Q000209:etiology*; D002648:Child; D005260:Female; D005909:Glioblastoma / Q000532:radiotherapy*; D006801:Humans; D008297:Male; D008527:Medulloblastoma / Q000532:radiotherapy*; D009837:Oligodendroglioma / Q000532:radiotherapy*; D012516:Osteosarcoma / Q000000981:diagnostic imaging / Q000209:etiology*; D011859:Radiography; D011878:Radiotherapy / Q000009:adverse effects*; D012886:Skull / Q000473:pathology* / Q000528:radiation effects