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Hypervitaminosis A in a cat.

A L Goldman1

  • 1Warwick Animal Hospital, RI 02888.

Journal of the American Veterinary Medical Association
|June 15, 1992
PubMed
Summary
This summary is machine-generated.

A cat fed raw liver developed hypervitaminosis A, causing bone lesions and fusion. This case highlights the risks of excessive vitamin A from liver-rich diets in felines.

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Area of Science:

  • Veterinary Medicine
  • Toxicology
  • Animal Nutrition

Background:

  • Dietary management is crucial for feline health.
  • Excessive vitamin A intake can lead to toxicity.
  • Raw liver is a common dietary supplement for pets.

Observation:

  • A 10-year-old cat presented with lethargy, anorexia, and weight loss.
  • Physical examination revealed neck rigidity and a palpable cervical mass.
  • Radiography showed proliferative bony lesions in the vertebrae, sternum, and costal cartilages.

Findings:

  • Serum vitamin A levels were four times the normal concentration.
  • Necropsy confirmed rigid fusion of the skull, cervical, and thoracic vertebrae.
  • New bone deposition altered vertebral architecture, sternum, and costal cartilages.

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Implications:

  • Hypervitaminosis A should be considered in cats with similar clinical signs and diets.
  • This case underscores the dangers of over-supplementation with vitamin A, particularly from raw liver.
  • Veterinarians should inquire about diet, especially raw liver consumption, when diagnosing sick cats.