Isolated interrupted aortic arch accompanied by type B aortic dissection and extensive collateral arteries diagnosed with MDCT angiography.

Interrupted aortic arch (IAA) is a rare congenital cardiovascular condition. A patient with uncorrected IAA accompanied by rich collateral arteries can survive to adulthood asymptomatically. However, IAA complicated by aortic dissection is life threatening. Herein, we report a rare case of an isolated IAA accompanied by type B aortic dissection and extensive collateral arteries detected by multidetector computed tomography in a 38-year-old man. The imaging findings of the case are presented, and the utility of multidetector computed tomography in the evaluation of this condition is discussed.