Lateral internal carotid angiogram demonstrating a juvenile nasopharyngeal angiofibroma. The vidian artery is seen to originate from the petrous internal carotid and supply the mass. Branches of the ophthalmic artery also supply the angiofibroma.

Lateral external carotid angiogram. Connection between the middle meningeal artery and ophthalmic artery is demonstrated.

AP internal carotid angiogram with opacification of the enlarged vidian artery leading into the angiofibroma.  There is collateral filling of the middle meningeal artery.