<unk>  is a rare condition in which the blood vessels between the heart and the lungs have formed incorrectly before birth. It is a type of cardiovascular condition called a vascular ring.The main treatment is surgery.
Pulmonary artery sling
Aortopulmonary septal defect
Double aortic arch
Interrupted aortic arch
Congenital diaphragmatic hernia
Tricuspid atresia
Tracheal agenesis
Tracheoinnominate fistula