Anatomical variant of origin of ophthalmic artery: case report.

We report on one case of variant origin of right ophthalmic artery (OA) from C4 choroidal segment of the right supraclinoid internal carotid artery. A 41-year-old woman affected by bitemporal hemianopsia performed Magnetic Resonance Imaging with gadolinium showing tuberculum sellae meningioma. During angiography we observed this variant of origin of OA. At surgical dissection, we observed this variant in carotid cistern.