Cavernous hemangioma in the cavernous sinus.

Cavernous hemangioma, a rare vascular hamartoma, in the cavernous sinus is described in this report. This case showed a slowly progressive course, which first involved the right optic nerve, followed by the left optic nerve, and then the right oculomotor, trochlear, abducens, and trigeminal nerves. Cavernous hemangioma should be suspected in the case of mass in the cavernous sinus with a very slowly progressive course. MRI is very useful to help diagnose this hemangioma.