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Adult-onset regurgitation in a dog with an aberrant right subclavian artery: a CT angiographic study
  1. Rachel Miller1,
  2. Catherine Wilson1,
  3. Jon Wray1,
  4. Samuel Jakovljevic2 and
  5. Simon Tappin1
  1. 1Department of Small Animal Internal Medicine, Dick White Referrals, Newmarket, UK
  2. 2Department of Diagnostic Imaging, Dick White Referrals, Newmarket, UK
  1. Correspondence to Rachel Miller, rach160882{at}


A two-year-old Border Collie presented with a three-month history of regurgitation. Investigation with plain radiography, digital fluoroscopy, endoscopy and CT angiography (CTA) confirmed the presence of an aberrant right subclavian artery causing dorsal oesophageal compression. In this report, CTA was used to depict the anatomy of an aberrant right subclavian vessel and to highlight the importance of this imaging modality to identify the structures involved in a vascular ring. This report also identifies a patient with a congenital vascular ring anomaly presenting with adult-onset regurgitation, which has been successfully managed with medical treatment.

  • Vascular Ring Anomaly
  • Fluoroscopy
  • Endoscopy
  • Canine
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