Peer-reviewed veterinary case report
Cat with painful swollen ears diagnosed with auricular chondritis
By Meziara Wilson, Tais et al.·Published in Acta veterinaria Hungarica·2019·1 Laboratory of Veterinary Pathology, Brazil·View original on PubMed →
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Original publication title: Immunopathological findings in a cat with auricular chondritis.
- Species:
- cat
Plain-English summary
A 5-year-old male domestic short-haired cat was brought to the vet with painful swelling and redness in both ears. Upon examination, the vet found that the cartilage in the ears was damaged and inflamed, which is a condition known as auricular chondritis. The vet noted a mix of immune cells in the affected area, indicating a strong inflammatory response. Treatment options would typically include anti-inflammatory medications and possibly immunosuppressive therapy to manage the condition. With appropriate care, the cat can improve, but ongoing monitoring may be necessary.
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Abstract
At clinical examination, a 5-year-old male domestic short-haired cat exhibited painful swelling and erythema of the pinnae of both ears. Microscopically, the lesions on both pinnae were composed of diffuse granulomatous chondritis with degeneration and necrosis of the pinnal cartilage. Numerous mast cells were also observed within and surrounding the inflammatory lesion. Immunohistochemistry showed a mixed inflammatory infiltrate characterised by the predominance of macrophages (CD68+, MAC 387+ and Lysozyme+), T lymphocytes (CD3+), some B lymphocytes (CD79α+) and neutrophils. Immunopathological characterisation of the lesion showed a granulomatous inflammation profile and suggests that the morphological changes and immunopathogenesis of auricular chondritis in cats presents a similarity with relapsing polychondritis in humans.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/30922093/