Bilateral congenital choanal atresia at age 16: an interesting case.

A bilateral congenital posterior choanal atresia case diagnosed at the age of 16 is presented. Although bilateral congenital choanal atresia causes acute life-threatening respiratory obstruction in newborns, this case was able to compensate by rapidly learning mouth breathing and the diagnosis did escape detection for years. The patient was treated successfully via transpalatal approach.