THE THREE TYPES OF RIGHT AORTIC ARCH

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Abstract
1. Right aortic arch can be divided into 3 sub-groups according to the branching of the arch vessels.2. Right aortic arch and an aberrant left subclavian artery is the most common type of right arch and can be identified by the large posterior defect on the barium-filled esophagus. Right aortic arch with mirrorimage branching of the major arteries and right arch with isolation of the left subclavian artery are frequently associated with cyanotic congenital heart disease. The lateral esophagogram in these types is usually normal.3. The embryologic, anatomic and roentgenologic features of each of these types are discussed.

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