Sphenoid Sinus Mucocele Causing Orbital Apex Syndrome, Methicillin-Susceptible Staphylococcus aureus Bacteremia, and Hypopituitarism

Abstract

Sphenoid sinus mucocele (SSM) is a rare disease, accounting for only 1% to 2% of all paranasal sinus mucoceles [1]. Typically, paranasal sinus mucoceles develop after radiotherapy or in patients with cystic fibrosis; however, some studies have reported SSM with no specific underlying cause other than chronic rhinitis [2]. Although SSM is benign, it tends to expand, leading to severe complications such as optic nerve palsy, ocular motor nerve palsy