title: [Sphenoid sinus agenesis].
abstract: Agenesis of paranasal sinuses is an uncommon finding mainly seen in the frontal and maxillary sinuses. Agenesis of sphenoid sinuses is an extremely rare condition. In this article, we present an 18-year-old female patient suffering from headache and nasal obstruction without any skeletal or cranial anomalies. Axial, coronal and sagittal computed tomography revealed absent sphenoid sinuses. Surgeons should be aware of sphenoid sinus agenesis, when transsphenoidal hypophysectomy and endoscopic sinus surgery are scheduled, in particular.
authors.affiliation: Department of Otolaryngology, Acıbadem Healthcare Group, Kozyatağı Acıbadem Hospital, 34742 Kozyatağı, İstanbul, Turkey. baylancicek@yahoo.com.
authors.forename: Serdar
authors.initials: S
authors.lastname: Baylançiçek
authors.forename: Mehmet Erdem
authors.initials: ME
authors.lastname: Yıldız
authors.forename: Mehmet Emre
authors.initials: ME
authors.lastname: Üstündağ
mesh_terms: D000293:Adolescent; D000013:Congenital Abnormalities; D004724:Endoscopy; D005260:Female; D006261:Headache / Q000209:etiology; D006801:Humans; D015508:Nasal Obstruction / Q000209:etiology; D013101:Sphenoid Sinus / Q000002:abnormalities* / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed