<unk>  is a very rare congenital disorder of the lung primarily characterized by an abnormal widening of the upper airways. The abnormally widened trachea and mainstem bronchi are associated with recurrent lower respiratory tract infection and copious purulent sputum production, eventually leading to bronchiectasis and other respiratory complications.
Tracheobronchomegaly
Subcutaneous emphysema
Tracheal deviation
Bronchophony
Tracheomalacia
Laryngotracheal stenosis
Tracheal agenesis
Pachygyria