Rapports endoscopiques entre l'ostium du sinus frontal et l'artère ethmoïdale antérieure : implications chirurgicales

These data are addressed to surgeons seeking the anterior ethmoidal artery starting from the frontal sinus ostium. Localization of the frontal sinus ostium, which can be achieved by retrograde cannulation of the frontal sinus or using a transcutaneous frontal drain, appears to be a reliable technique to dissect the roof of the anterior ethmoid and locate the anterior ethmoidal artery.