title: Radiation-induced osteosarcoma of the maxilla.
abstract: Radiation-induced sarcomas are well-known though uncommon potential late sequelae of radiation therapy. We report irradiation-induced osteosarcoma involving the maxilla following treatment of nasopharyngeal carcinoma in a 44-year-old man who presented with painful cheek swelling. Radiographs and computed tomography showed a large destructive lesion of the left maxilla. Diagnosis of osteosarcoma was confirmed by excision biopsy.
authors.affiliation: Department of Radiology, Faculty of Medicine, University of Malaya Medical Centre, Kuala Lumpur 59100, Malaysia.
authors.forename: J J
authors.initials: JJ
authors.lastname: Kasthoori
authors.forename: M L
authors.initials: ML
authors.lastname: Wastie
mesh_terms: D000328:Adult; D002610:Cheek / Q000503:physiopathology; D006801:Humans; D008297:Male; D008437:Maxilla / Q000528:radiation effects*; D008441:Maxillary Neoplasms / Q000209:etiology*; D009303:Nasopharyngeal Neoplasms / Q000532:radiotherapy*; D012516:Osteosarcoma / Q000209:etiology*; D011829:Radiation Dosage; D011878:Radiotherapy / Q000009:adverse effects