An unusual variant of the fronto-orbital artery

A patient with a rare variation of the frontoorbital artery is presented. I n this case, the fronto-orbital artery arises from the A1 segment of the co ntralateral anterior cerebral artery. The angiographic findings in this cas e are illustrated and discussed. The importance of recognizing this variant is related to the planning of surgery or endovascular therapy in the anter ior cerebral artery region.