title: Optic neuritis is nothing to sneeze at.
abstract: A 36-year-old man developed acute visual loss, mimicking an optic neuritis in the left eye. Cranial magnetic resonance imaging revealed a sphenoid sinus mucocele with extension into the anterior clinoid process abutting the left optic nerve. Endoscopic marsupialization of the mucocele led to marked improvement of vision. Sphenoid sinus mucocele is discussed, as is the differential diagnosis of optic neuritis.
authors.affiliation: Departments of Ophthalmology, University of Alabama at Birmingham, Birmingham, Alabama 35233, USA.
authors.forename: Michael S
authors.initials: MS
authors.lastname: Vaphiades
authors.forename: Jacob J
authors.initials: JJ
authors.lastname: Yunker
authors.forename: Glenn H
authors.initials: GH
authors.lastname: Roberson
authors.forename: Dale R
authors.initials: DR
authors.lastname: Meyer
authors.forename: David M
authors.initials: DM
authors.lastname: Mills
mesh_terms: D000328:Adult; D003117:Color Vision Defects / Q000175:diagnosis* / Q000601:surgery; D003937:Diagnosis, Differential; D004724:Endoscopy; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009078:Mucocele / Q000175:diagnosis* / Q000601:surgery; D013508:Ophthalmologic Surgical Procedures; D009902:Optic Neuritis / Q000175:diagnosis*; D010254:Paranasal Sinus Diseases / Q000175:diagnosis* / Q000473:pathology* / Q000601:surgery; D012607:Scotoma / Q000175:diagnosis* / Q000601:surgery; D013101:Sphenoid Sinus / Q000473:pathology* / Q000601:surgery; D014057:Tomography, X-Ray Computed