Persistent right aortic arch in a yearling horse.
A 14-month-old filly with chronic pharyngitis was diagnosed with incomplete esophageal constriction and megaesophagus due to a persistent right aortic arch. This report is unusual because clinical signs of respiratory dysfunction secondary to chronic regurgitation occurred prior to the recognition of dysphagia.
Butt
T D
TD
Department of Anesthesiology, Radiology and Surgery, Western College of veterinary Medicine, University of Saskatchewan, Saskatoon.
MacDonald
D G
DG
Crawford
W H
WH
Dechant
J E
JE
D000818:Animals; D001013:Aorta, Thoracic / Q000002:abnormalities*; D002908:Chronic Disease; D003680:Deglutition Disorders / Q000209:etiology / Q000662:veterinary*; D005260:Female; D006734:Horse Diseases / Q000209:etiology*; D006736:Horses / Q000002:abnormalities*; D010612:Pharyngitis / Q000209:etiology / Q000662:veterinary*