Unilateral Congenital Choanal Atresia Encountered in A 5 Years Old Patient

Choanal atresia was first described by Roederer in 1755 and it was defined as a malformation of the posterior nasal aperture that interferes with air flow from nose to nasopharynx but there are still doubts about this abnormality including timing of surgery, access to the surgical field, procedure technique, pharmacologic approach before and during surgery and stent application and maintenance [1]. The choanal obliterating plaque consists of bone in 30 per cent of cases and a bonymembranous mixture in 70 per cent [2]. In general it requires immediate care because it represents a life-threatening condition for the child [3]. It was reported a successful case treated by transnasal introduction of a curved trochar in 1854.