MSD Manual

Please confirm that you are a health care professional

honeypot link
Professional Version

Vascular Ring Anomalies in Animals

By

Sandra P. Tou

, DVM, DACVIM-Cardiology, DACVIM-SAIM, Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University

Reviewed/Revised Jan 2020 | Modified Oct 2022

Pairs of embryonic aortic arches exist during early fetal development and subsequently give rise to the carotid arteries (third arches), the aortic arch (left fourth arch), and the pulmonary arteries and ductus arteriosus (sixth arches). The other aortic arches regress, although the first aortic arches also become part of the maxillary arteries. Congenital defects may arise if development or dissolution of the aortic arches is disrupted. Multiple vascular ring anomalies have been reported in dogs, including persistent right aortic arch, double aortic arch, left aortic arch with right ligamentum arteriosum, and retroesophageal subclavian arteries.

quiz link

Test your knowledge

Take a Quiz!
iOS ANDROID
iOS ANDROID
iOS ANDROID
TOP