Aortic dissection involving an aberrant right subclavian artery: CT and MR findings.

Three cases of aortic dissection involving an aberrant right subclavian artery are presented. Preoperative diagnosis was made based on CT and MRI. The association of dissection and aberrant right subclavian artery is rarely encountered; however, the diagnostic and therapeutic implications of these associations are important. We describe the chest radiographic, CT, and MR findings of this rare complication of a relatively common congenital vascular anomaly.