Right aortic arch

The right aortic arch is a more common congenital vascular malformation. The aorta does not cross the left main bronchus after exiting from the left ventricle, but crosses the right main bronchus backwards and connects to the descending aorta. The descending aorta descends along the right side of the spine until it approaches the diaphragm. Patients are often accompanied by other congenital cardiovascular malformations such as tetralogy of Fallot, ventricular septal defect, pulmonary valve atresia, right atrioventricular valve atresia, permanent aortic trunk and aortic dislocation.