Giant aneurysm in the cavernous sinus causing subarachnoid hemorrhage 13 years after detection: a case report.

A 40-year-old man presented with cavernous sinus syndrome due to a giant aneurysm in the cavernous sinus. After a course of 13 years, he died of a subarachnoid hemorrhage (SAH). The finding in this case suggest that radical operation should be considered for nonruptured giant cavernous sinus aneurysms, depending on the location and development of the lesion.