[Malformations associated with choanal atresia: a report of 7 cases].

Choanal atresia frequently is associated with other congenital malformations, alone or as a poly-malformation syndrome. Some of these malformations may be life-threatening for the patient, so meticulous study of these patients is advisable, in order to find and treat possible malformations as soon as possible. We present a study of seven cases of uni and bilateral choanal atresia.