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Cutaneous leishmaniasis in a sheep.
J J van der Lugt1, J F Carlyon, D T de Waal
1Section of Pathology, Veterinary Research Institute, Onderstepoort, Republic of South Africa.
Journal of the South African Veterinary Association
|June 1, 1992
Summary
A case of cutaneous leishmaniasis was identified in a sheep, presenting as a swollen ear with skin lesions. Histopathology confirmed Leishmania parasites within macrophages, indicating a parasitic skin infection in livestock.
Area of Science:
- Veterinary Pathology
- Parasitology
Background:
- Cutaneous leishmaniasis is a parasitic disease caused by Leishmania species.
- Sheep can be susceptible to various parasitic infections affecting the skin.
Observation:
- A sheep in the Eastern Transvaal presented with a swollen ear pinna, thickened skin, and crusting.
- Skin biopsy revealed inflammation with macrophages, plasma cells, eosinophils, and neutrophils.
Findings:
- Macrophages in the dermis contained amastigote forms of Leishmania.
- Epidermal changes included hyperkeratosis, hyperplasia, erosion, and crusting.
Implications:
- This case highlights cutaneous leishmaniasis as a potential diagnosis for ear lesions in sheep.
- Further research may be needed to understand the epidemiology and treatment of leishmaniasis in South African sheep flocks.