title: Choanal atresia in a cat.
abstract: METHODS
  A 5-month-old domestic shorthair kitten with a history of chronic left unilateral nasal discharge was examined.
  
  
  RESULTS
  Endoscopy and computed tomography (CT) demonstrated a complete membranous obstruction of the left nasal choana, confirming congenital unilateral choanal atresia. In addition, congenital hydrocephalus was detected on CT. Nasopharyngoscopy was performed for confirmation and treatment of choanal atresia.
  
  
  METHODS
  Unilateral membranous choanal atresia associated with congenital hydrocephalus.
  
  
  CONCLUSIONS
  This report describes a rare congenital condition and for the first time, CT imaging provided an accurate diagnosis and allowed planning for the successful treatment of unilateral membranous choanal atresia. In addition, concurrent congenital hydrocephalus was diagnosed.
authors.affiliation: Massey University, Te Kunenga ki Pürehuroa, Palmerston North, New Zealand. S.Azarpeykan@massey.ac.nz
authors.forename: S
authors.initials: S
authors.lastname: Azarpeykan
authors.forename: A
authors.initials: A
authors.lastname: Stickney
authors.forename: K E
authors.initials: KE
authors.lastname: Hill
authors.forename: A C
authors.initials: AC
authors.lastname: Hartman
authors.forename: B R
authors.initials: BR
authors.lastname: Jones
authors.forename: E
authors.initials: E
authors.lastname: Acke
mesh_terms: D000818:Animals; D002371:Cat Diseases / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D002415:Cats; D002754:Choanal Atresia / Q000662:veterinary*; D008297:Male; D011859:Radiography; D012220:Rhinitis / Q000209:etiology / Q000601:surgery / Q000662:veterinary