Aberrant right subclavian artery

Case contributed by Dr Hani Salam



Patient Data

Age: 60 years
Gender: Male

On frontal radiograph there is a mass effect on the distal tracheal air column in relation to the aortic knuckle. On lateral chest radiograph there is a rounded opacity at Raider triangle exerting mass effect on the dorsal trachea.

Aberrant right subclavian artery arising from the distal posterior aortic arch and coursing superiorly and to the right behind the trachea and esophagus.

Case Discussion

An aberrant right subclavian artery arises as the last branch off a left-sided aortic arch and courses obliquely and superiorly behind the trachea and esophagus to resume its normal course. It is typically an isolated anomaly, represents one of the most common aortic arch branching anomalies and affects up to 0.5% of the population, with reported prevalence of 0.4-2%.

PlayAdd to Share

Case information

rID: 40967
Published: 13th Aug 2016
Last edited: 14th Aug 2019
Inclusion in quiz mode: Included

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.