Ectopic infraorbital nerve in a maxillary sinus septum: another potentially dangerous variant for sinus surgery

Abstract

We report on two patients with ectopic infraorbital nerve and canal located in a maxillary sinus septum. This very rare anatomic variation may possibly generate complications during sinus surgery if it passes unnoticed during the preoperative CT work-up.

Keywords

• Paranasal sinuses
• Anatomy