title: Unusual vascular ring anomaly in a foal.
abstract: A 2.5-month-old filly was presented with signs of esophageal obstruction. The filly was euthanized and postmortem examination revealed a vascular ring anomaly. The vascular ring anomaly was not caused by a persistent right aortic arch, which is the only vascular ring anomaly reported to occur in horses.
authors.affiliation: Western College of Veterinary Medicine, University of Saskatchewan, 52 Campus Drive, Saskatoon, Saskatchewan.
authors.forename: Trinity R
authors.initials: TR
authors.lastname: Smith
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D001015:Aortic Arch Syndromes / Q000150:complications / Q000175:diagnosis / Q000662:veterinary*; D001344:Autopsy; D018376:Cardiovascular Abnormalities / Q000150:complications / Q000175:diagnosis / Q000662:veterinary; D003251:Constriction, Pathologic / Q000150:complications / Q000175:diagnosis / Q000662:veterinary; D003937:Diagnosis, Differential; D004940:Esophageal Stenosis / Q000209:etiology / Q000662:veterinary*; D005260:Female; D006734:Horse Diseases / Q000175:diagnosis* / Q000473:pathology; D006736:Horses