Bilateral traumatic extracranial aneurysms of the internal carotid artery with delayed brain infarction.

A 24-year-old woman with a left-sided cerebral infarction presented with hemiplegia and aphasia. Five months earlier she had had a closed head injury. Angiography revealed bilateral extracranial post-traumatic aneurysms of the internal carotid artery at the atlanto-axial level. There was full recovery without operative treatment within a week.