Vascular ring anomaly
Vascular ring anomalies are a relatively rare cardiovascular disorder of dogs characterized by abnormal persistent of the fetal aortic arch.
The most common vascular ring anomaly is a persistent right aortic arch with a left ligamentum arteriosum, however various other vascular anomalies resulting in tracheoesophageal compression have also been reported, such as persistent right aortic arch and left ligamentum arteriosum with a hypoplastic aberrant left subclavian artery.
- Bottorff B & Sisson DD (2012) Hypoplastic aberrant left subclavian artery in a dog with a persistent right aortic arch. J Vet Cardiol 14(2):381-385