Limited DSA views.
Ethmoidal dural AVF, with feeder coming off: Bilateral ophthalmic arteries - via right side crista galli. Bilateral external carotid arteries most likely from the ethmoidal and nasal cavity branches coming off of the internal maxillary arteries-R>L. Venous varicosity noted, with a large varix measuring approximately 12 mm x 8 mm to right of midline. Venous drainage noted into the rostral part of the superior sagital sinus. No further abnormality is identified.
Conclusions: Ethmoidal dural AVF with bilateral ophthalmic and external carotid feeders, as described.