Osteosarcoma of the temporal fossa with hemorrhagic presentation: case report.

Abstract

Excluding tumors of hematopoietic origin, osteosarcomas are the most common bone tumor, although involvement of the brain or cranial base is rare. A 16-year-old girl with an osteosarcoma of the temporal fossa presented with an intracerebral hemorrhage. The management strategy of this lesion, including the operative interventions, is described. Several modes of treatment were undertaken, including radical resection of the cranial base lesion and excision of the cavernous sinus after a cervical internal carotid artery-to-middle cerebral artery vein bypass graft. The patient was alive and without evidence of disease 11 months after presentation but died shortly thereafter of complications related to adjuvant therapies.