title: Clinical presentation of a sphenochoanal polyp.
abstract: Although choanal polyps frequently arise from the maxillary sinus, a choanal polyp originating from the sphenoid sinus is a rare entity. In this report, an unusual case of a large choanal polyp taking origin from the sphenoid sinus is presented. The reasons for its development and methods of management are discussed.
authors.affiliation: Otorhinolaryngology, Head and Neck Surgery Department, Gazi University Medical School, Bestepe, Ankara, Turkey.
authors.forename: F
authors.initials: F
authors.lastname: Ileri
authors.forename: A
authors.initials: A
authors.lastname: Köybaşioĝlu
authors.forename: S
authors.initials: S
authors.lastname: Uslu
mesh_terms: D000293:Adolescent; D005260:Female; D006801:Humans; D009298:Nasal Polyps / Q000473:pathology*; D009669:Nose Neoplasms / Q000473:pathology*; D013101:Sphenoid Sinus / Q000473:pathology*