title: Headache induced by an arachnoid cyst of the sphenoid sinus: a rare diagnosis problem?
abstract: We describe a diagnostic problem in a young adult with a long history of frequently occurring headache episodes. The cause for these episodes was traced to a rare condition, extensive arachnoid cyst of sphenoid sinus. Extensive lesions of the sphenoid sinus are relatively rare and can cause non-specific symptoms. Thus they can represent a major pre-operative diagnosis dilemma even with access to advanced imaging techniques.
authors.affiliation: Department of Otorhinolaryngology, Kuopio University Hospital and University of Kuopio, P.O. Box 1777, 70211, Kuopio, Finland. henri.tuomilehto@kuh.fi
authors.forename: Henri
authors.initials: H
authors.lastname: Tuomilehto
authors.forename: Antti
authors.initials: A
authors.lastname: Ronkainen
authors.forename: Aki
authors.initials: A
authors.lastname: Ikonen
mesh_terms: D000328:Adult; D016080:Arachnoid Cysts / Q000150:complications / Q000175:diagnosis*; D005260:Female; D006261:Headache / Q000209:etiology*; D006801:Humans; D010254:Paranasal Sinus Diseases / Q000150:complications / Q000175:diagnosis*; D013101:Sphenoid Sinus; D055815:Young Adult