# Transorbital Approach to Surgical Resection of a Far-Lateral Frontal Sinus Osteoma

## TL;DR

A rare case of a frontal sinus osteoma was successfully removed using a transorbital surgical approach.

## Contribution

This paper presents a rare case of transorbital resection of a far-lateral frontal sinus osteoma.

## Key findings

- A transorbital approach enabled complete resection of a far-lateral frontal sinus osteoma.
- The transorbital approach provides minimally invasive access to challenging frontal sinus areas.
- Histopathology confirmed the mass as an osteoma following complete surgical resection.

## Abstract

A 21-year-old male presented with chronic left-sided rhinosinusitis and was found to have a left frontal sinus mass on maxillofacial computed tomography (CT). The mass measured approximately 1.9 × 1.3 × 2.3 cm in size and was contiguous with the intrasinus septum and anterior table of the frontal sinus. Imaging features were consistent with osteoma. An endoscopic endonasal approach resulted in subtotal resection of the mass. Eleven months later, the patient underwent a combined left transorbital and endoscopic surgical resection with oculofacial plastic surgery and otolaryngology. The mass was resected in its entirety, and histopathology confirmed an osteoma. This is one of the few reports of a unilateral transorbital frontal sinus osteoma resection and highlights the utility of the transorbital approach for minimally invasive access to the far-lateral frontal sinus.