Peer-reviewed veterinary case report
Sheep with blindness and unsteady walk diagnosed with brain tumor
By Derakhshanfar, A & Mozaffari, A A·Published in Journal of the South African Veterinary Association·2010·Department of Pathobiology·View original on PubMed →
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Original publication title: First report of oligodendroglioma in a sheep.
- Species:
- sheep
Plain-English summary
A 1-year-old sheep was brought to the vet because it was having serious neurological issues, including blindness, difficulty walking, circling, and lack of coordination. Unfortunately, after the sheep was euthanized for humane reasons, a necropsy revealed a tumor in the brain, specifically an oligodendroglioma, which is a type of brain tumor. This case is significant as it marks the first reported instance of this type of tumor in sheep.
People also search for: sheep neurological problems · sheep brain tumor symptoms · what causes blindness in sheep
Abstract
Oligodendrogliomas occur most commonly in the dog, but have also been reported in cattle, horses and cats. A 1-year-old sheep with neurological disturbances, including blindness, ataxia, circling and incoordination was referred to the veterinary clinic of Shahid Bahonar University of Kerman. Following euthanasia and necropsy, a soft, relatively well-demarcated mass was observed in the white and grey matter of the right cerebral hemisphere, close to the sylvian fissure in the right cerebral hemisphere. Microscopic examination revealed a sheet of densely packed tumour cells with hyperchromatic nuclei, lightly staining cytoplasm and characteristic perinuclear halo effect which is consistent with a diagnosis of oligodendroglioma. This is the 1st report of oligodendroglioma in sheep.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/21247018/