Computed tomographic findings in primary mandibular osteosarcoma.
Osteosarcoma of the mandible is a rare tumour. Two cases examined by computed tomography (CT) are presented. The osteolytic, osteoblastic and extra-osseous components are excellently shown by CT. The attenuation coefficient of calcified and non-calcified osteoid is extremely variable, with densities ranging from +19 to +320 EMI units. The extension of lesions into the pterygopalatine fossa, infratemporal fossa and cranial cavity are precisely defined on CT, information which is necessary for surgical and radiotherapy planning.
D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008339:Mandibular Neoplasms / Q000000981:diagnostic imaging*; D012516:Osteosarcoma / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed