Answer 3 Questions About This Thoracic Radiograph

Test your knowledge in the March 2017 Brain Teaser

April 14, 2017

Pictured: Thoracic radiograph of a 13-year-old Labrador.


  1. What’s your diagnosis?
  2. Name at least 2 diseases that can cause this condition or that can exist concurrently.
  3. What is a possible complication of this condition?


  1. Megaesophagus.
  2. Myasthenia gravis, laryngeal paralysis, hypothyroidism, Addison’s disease, persistence of the right aortic arch (PRAA).
  3. Aspiration pneumonia.

How’d you do? Let us know in the comments.

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