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Information Provided to Candidate
1. 7 year old Labrador Retriever presented with acute onset of respiratory distress.
2. State the radiographic findings.
3. Give a concise assessment and prioritized differential diagnosis.
4. Any further imaging studies needed?
5. If not, why not?
6. If yes, what studies are indicated and why?
7. What other diagnostics tests are needed to confirm your presumptive diagnosis?
Right Lateral, Left Lateral and Dorsoventral Thorax
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Findings Expected from Candidate
The candidate was expected to recognize the presence of a cranial mediastinal mass, generalized megaesophagus and the presence of patchy alveolar infiltrate in the right middle lung lobe. In addition the presence of a small tube within the trachea should have been documented.
Conclusion Expected from the Candidate
Summary of Overall Candidate Performance
While most candidates correctly identified the radiographic findings, many candidates failed to make the association between the esophageal and pulmonary pathology and the cranial mediastinal mass. As radiologists, knowledge of this syndrome and the radiographic features is very important and this case tested both recognition of radiographic findings and knowledge of pathophysiology of disease. This was considered a straightforward case, where the candidate was expected to recognize compelling radiographic findings and present a primary differential diagnosis and possibly 1-2 other less likely differentials.
©2016 American College of Veterinary Radiology