Frontoethmoidal mucocele with unilateral proptosis

Abstract

Frontoethmoidal mucocele can present with a multitude of different symptoms including ophthalmic disturbances. Though benign, they have a tendency to expand by thinning the bony walls. They displace and invade surrounding structures by pressure and bony resorption. If it invades the orbit and continues to expand, the mass may mimic the behavior of many benign growths arising primarily in the orbit. We report a case of a frontoethmoidal mucocele extending into the orbit. Clinically, the patient had an insidious onset of clinical presentation with no intracranial symptoms.