Right Aortic Arch

Right Aortic Arch

The Common Vein Copyright 2008

Definition

Right aortic arch is a congenital abnormality which has no specific known causes. It may be isolated or it may be associated with other CHD (congenital heart diseases) It is associated with both Tetralogy of Fallot and truncus arteriosus.

Rhe right aortic arch, ascends and descends over the root of the right bronchus instead of over that of the left, and passes down either on the right or left side of the vertebral column. When it descends on the right, the thoracic and or the abdominal viscera are usually transposed and congenital heart disease tends to be more common.. When the aorta descends on the left it is not usually accompanied by transposition of the viscera.

and associated congenital heart disease is uncommon though aberrant left subclavian artery is often present.

The diagnosis can be made with a plain chest X-ray.

Right Aortic Arch
35334 Courtesy of Laura Feldman MD. code aorta arch artery right aortic arch thorax

Right Aortic Arch with Aberrant Left Subclavian Artery

49841.800 thoracic aorta thorax right aortic arch aberrant left subclavian artery CTscan Courtesy Ashley Davidoff MD

Righ Sided Impression on the Trachea

76032 aorta arch right aortic arch left aortic arch normal position trachea impression on right side CTscan CourtesyAshley Davidoff MD

Normal and Right Aortic Arch

76034c05 aorta arch right aortic arch left aortic arch normal position Ctscan CourtesyAshley Davidoff MD

Normal and Right Aortic Arch

76034c05 aorta arch right aortic arch left aortic arch normal position Ctscan CourtesyAshley Davidoff MD

 

References

LearningRadiology.com