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Atherosclerotic aortic aneurysm in a steppe eagle (Aquila nipalensis)
  1. Tariq Abou-Zahr1,
  2. Thomas Anthony George Dutton1,
  3. Daniel Calvo Carrasco1,
  4. Neil Forbes1 and
  5. Mark Frederick Stidworthy2
  1. 1Avian & Exotic Department, Vets Now Referrals, Swindon, Wiltshire, UK
  2. 2Department of Pathology, International Zoo Veterinary Group, Keighley, UK
  1. Correspondence to Tariq Abou-Zahr, ta9797{at}


A 23-year-old female imprinted steppe eagle (Aquila nipalensis) was presented by a public falconry centre for postmortem examination following sudden death with no previous clinical signs. Postmortem examination revealed the presence of 150 ml of blood within the coelomic cavity, with a packed cell volume of 42% indicating an acute, internal haemorrhage as a presumptive cause of death. A well-demarcated, solid, hard, ovoid, approximately 3 cm×2 cm (in cross section) mass was discovered within the body of the aorta adjacent to the ovary. Histological examination confirmed this to be an aortic aneurysm underlain by severe atherosclerosis with a transmural rupture.

  • Pathology
  • Birds
  • Histopathology
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