Tracheal atresia (TA) is an extremely rare anomaly and refers to a congenital absence of the trachea.


There may be a greater male predilection .


Tracheal atresia falls under the spectrum of laryngeal-tracheo-bronchial atresia which in turn results either from an obstructing lesion (i.e. cartilaginous bar) or vascular insult with atresia of the airways which occurs during intrauterine development.


Associated anomalies can be present in up to 90% of cases .

Radiographic features

Antenatal ultrasound

Differential diagnosis

General differential considerations include:

  • laryngeal atresia: sometimes can be impossible to differentiate on imaging
  • severe congenital tracheal stenosis
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