Presentation
Headache.
Patient Data
Post-FESS changes in form of bilateral turbinectomy and left posterior ethmoidectomy,
Bilateral frontal sinus aplasia.
Both ostiomeatal units are compromised with mucosal thickening/air-forthy secretion level causing 70-80% opacification of both maxillary antra. Complete opacification of the ethmoid air cells with 5x3mm osteoma in the left anterior air cell,
Protrusion of the right infra-orbital nerve canal into the maxillary sinus by the means of a bony septum attaching the canal to the lateral sinus wall measures (7.5mm). The distance at which protrusion begins posterior to the inferior orbital rim is about (14mm), and the canal is partly dehiscent.
Case Discussion
The significance of infraorbital canal protrusion into the maxillary sinus may impair drainage pathways, hinders endoscopic access to distal areas, or increases the risk of surgical complications.