A Case of Compressive Optic Neuropathy Caused by Sphenoid Sinus Mucocele

One of causes of compressive optic neuropathy is the sphenoid mucoceles which occur when the dranage of sinus is blocked. Mucocele of sphenoid sinus is rare, compressive to optic nerve and often misdiagnosed as pituitary tumor. We experienced a case of sphenoid sinus mucocele causing progressive visual disturbance, visual field defect, exophthalmos and headache. Plain skull and brain CT scan demonstrated sphenoid sinus mucocele. The visual acuity and visual field dramatically improved after surgery. Therefore early accurate detection and early surgical treatment are emphasized.