<unk> , or<unk>  syndrome, is a rare anatomical variant of the origin of the right or left<unk>  artery. This abnormality is the most common congenital vascular anomaly of the aortic arch, occurring in approximately 1% of individuals.
Aberrant subclavian artery
Persistent left superior vena cava
Persistent thyroglossal duct
Interrupted aortic arch
Right-sided aortic arch
Pulmonary artery sling
Tracheal agenesis
Double aortic arch