title: Congenital bilateral adult choanal atresia undiagnosed until the second decade: How we did it.
abstract: BACKGROUND
  Bilateral congenital choanal atresia that presents in adulthood is rare. There are only eight reported cases in the literature.
  
  
  METHODS
  We present a ninth case of adult bilateral choanal atresia diagnosed at the age of 20 years. Can a bilateral choanal atresia present so late in life when such a condition is considered incompatible with life?
  
  
  CONCLUSIONS
  Clinical details, diagnosis, and surgical steps with a clear depiction of photographs and comparison with all other previously reported cases, which can help novel otolaryngologists in their clinical practice are discussed.
authors.affiliation: Department of Otolaryngology and Head and Neck Surgery, Postgraduate Institute of Medical Education And Research, Chandigarh, India.
authors.forename: Roshan K
authors.initials: RK
authors.lastname: Verma
authors.forename: P
authors.initials: P
authors.lastname: Lokesh
authors.forename: Naresh K
authors.initials: NK
authors.lastname: Panda