Right sided aortic arch with aberrant left subclavian artery presenting as tracheal indentation on chest x-ray
Abstract
Right sided aortic arch (RAA), Aberrant left subclavian artery (ALSA), Tracheal indentation) Discussion RAA arises from persistence of right fourth aortic arch and abnormal regression of left fourth aortic arch. 2 According to Edwards classification there are 3 types of RAA, type I with mirror image branching, type II with ALSA and type III with isolated LSA.[2][3][4] In type
Fields of Study & Subjects
Congenital Heart Disease Studies
Vascular anomalies and interventions
Tracheal and airway disorders
Publication details
- Journal / source
- Sri Lanka Journal of Child Health
- Volume
- 55
- Issue
- 1
- Pages
- 87–89
- Publication date
- 5 March 2026
- Language
- EN