The anterior ethmoidal artery: radio-anatomical comparison and its application in endonasal surgery

Abstract

All anterior ethmoidal arteries were identifiable. The arteries were included in the roof of the ethmoid in eight cases. In three cases the arteries were prominent under the roof. In seven cases the dissection found the arteries distant from the roof. This anatomical feature was associated with pneumatization of the floor of the orbit. The correlation between CT scan and dissection was very satisfactory.