A right-sided aortic arch can be associated with other anatomical abnormalities of the great vessels, or with congenital heart diseases such as tetralogy of Fallot
A right-sided aortic arch may also be an asymptomatic and incidental finding, as in this case
A right-sided aortic arch may produce symptoms related to tracheal or oesophageal compression
Compression or deviation of these structures is not usually visible on a chest X-ray, as it is in this case, and so further investigation (CT or MRI) may be indicated in any patient with breathing or swallowing difficulty who has a right aortic arch