Combined Upper Fornix Transconjunctival and Endoscopic Transnasal Approach for Frontoethmoidal Osteoma with Orbital Extension - A Case Report

Intraorbital osteomas are incidentally found and occasionally require surgical treatment. Depending on their localisation, a single technique may not provide a sufficient surgical field. We report a 16-year-old male with a left upper medial palpable mass. Computed tomography revealed a dense bony mass extending from the ethmoid sinus to the superior wall of the frontal sinus, with protrusion into the orbital cavity. The combination of upper fornix transconjunctival and endoscopic transnasal approaches was chosen for the surgical removal procedure. The two-pathway approaches resulted in the clear removal of the mass. Post-operative recovery was rapid, although a slight restriction of the inferomedial duction remained at three months. This combination of techniques can provide a wide surgical field for the resection of frontoethmoidal osteomas with orbital extension.