[Pulmonary artery sling as a cause of recurrent wheezing in children].

Vascular rings are a group of aortic arch anomalies and usually presents with dispnea, stridor and feeding difficulties after birth. Pulmonary artery sling is created by anomalous origin of the left pulmonary artery from the posterior aspect of the right pulmonary artery. The anomalous left pulmonary artery compresses the lower trachea and right mainstem bronchus, producing upper airway symptoms. We presented a seven-month-old male patient who admitted to our clinic because of recurrent wheezing, stridor, and frequent lower respiratory tract infections.