Interruption of the aortic arch is an uncommon congenital cardiovascular malformation invariably accompanied by other cardiovascular anomalies. This carries a 76% mortality rate in the first month of life. We recently experienced a case of interruption of the aortic arch with patent ductus arteriosus in a 21-year-old man with systolic murmur. he did not showed any other symptoms or signs. Cardiac catheterization with angiography showed interruption of the aortic arch with many systemic arterial collaterals and patent ductus arteriosus.