DEVELOPMENT OF ANTERIOR CRANIAL FOSSA DURAL ARTERIOVENOUS MALFORMATION FOLLOWING HEAD TRAUMA - CASE-REPORT

Dural arteriovenous malformations (AVMs) are considered to be acquired lesions that develop secondary to venous obstruction, which sometimes happens in head trauma. However, there has been a report of an anteri or cranial fossa dural AVM that occurred independently of a history of head trauma, and there has been speculation that these malformations are congenital. The authors recount their experience with a patient wh o had an anterior cranial fossa dural AVM that was discovered incident ally. The lesion was fed by the bilateral anterior ethmoidal arteries and drained into the superior sagittal sinus via frontal cortical vein s. The patient had a history of severe head trauma that had occurred 3 0 years earlier. This is the first case report in which a previous hea d trauma is strongly believed to be the cause of an anterior cranial f ossa dural AVM. The authors postulate that anterior cranial fossa dura l AVMs can develop secondary to a head trauma.