November/December 2012

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African Black-Footed PenguinSignalment

Fifi - 29 year old male African Black-Footed Penguin from Baltimore Zoo

History

  • History of chronic severe spinal arthritis and difficulty walking
  • Previous oral fissure, now healed
  • Medications: Tramodol and Cosequin

Clinical Findings

  • Presented for weight loss and regurgitation
  • Progressive dyspnea and weakness
  • CBC findings:
    • Moderate leukocytosis
    • Marked hypoalbuminemia
    • Severe derangements on protein electrophoresis
  • Elected euthanasia due to declining condition

Post-Mortem Findings

Prominent Keel, muscle atrophy

Port-Mortem Findings

When you open the coelom, you see this:

Post-Mortem Findings

You remove the pluck to take a closer look... (dorsal surface is pictured)

Post-Mortem Findings

Questions

  • Can you localize the lesion to a specific organ?
    • Hint: This anatomic structure is not found in mammals!
  • What are your top differentials for respiratory disease in a bird? How about Penguin-specific differentials?
  • What would you expect to see on a histopathology for each of these top differentials?
  • Are there any special stains you could do to confirm your diagnosis?

Additional Post-Mortem Findings

Post-Mortem Findings

Incidental Lesions

Just for fun! What do you see?

Incidental Lesions

Incidental Lesions

Histopathology

Lesion Localization

Lesion Localization

Airsac

Airsac Histopathology

Airsac

Airsac Histopathology

Airsac

Airsac Histopathology

Airsac

Airsac Special Stains

Ventriculus

Ventriculus