The normal aortic arch courses to the left of the trachea and passes over the left main bronchus. A right-sided aortic arch occurs when the vessel courses to the right of the trachea and passes over the right main bronchus. A right-sided arch of aorta is rare and may be asymptomatic. It can be associated with dextrocardia (right-sided heart) and, in some instances, with complete situs inversus (left-to-right inversion of the body’s organs). It can also be associated with abnormal branching of the great vessels, particularly with an aberrant left subclavian artery.