title: Combined aplasia of sphenoid, frontal, and maxillary sinuses with hypoplasia of the ethmoid sinus.
authors.affiliation: Department of Otolaryngology, Izmir Teaching Hospital, Izmir, Turkey.
authors.forename: Tolga
authors.initials: T
authors.lastname: Kandogan
authors.forename: Abdullah
authors.initials: A
authors.lastname: Dalgic
authors.forename: Hulya
authors.initials: H
authors.lastname: Mollamehmetoglu
authors.forename: Ozgur
authors.initials: O
authors.lastname: Esen
keywords: Aplasia, Hypoplasia; Paranasal sinus; Sphenoid sinus