Right-sided aortic arch (type II)

Case contributed by Dr MT Niknejad

Presentation

Work up for cough.

Patient Data

Age: 40 years
Gender: Male

Right-sided aortic arch is present, accompanied by the aberrant left subclavian artery.

Case Discussion

Right-sided aortic arch is a type of aortic arch variant characterized by the aortic arch coursing to the right of the trachea. Different configurations can be found based on the supra-aortic branching patterns. The two most common patterns are the right-sided aortic arch with mirror image branching (type I) and the right-sided aortic arch with the aberrant left subclavian artery (type II), which may be associated with a Kommerell diverticulum.

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