First report of oligodendroglioma in a sheep.
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.
Department of Pathobiology, School of Veterinary Medicine, Shahid Bahonar University of Kerman, Iran. damin@mail.uk.ac.ir
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Derakhshanfar
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Mozaffari
D000818:Animals; D001932:Brain Neoplasms / Q000473:pathology / Q000662:veterinary*; D054022:Cerebrum / Q000473:pathology*; D008297:Male; D009837:Oligodendroglioma / Q000473:pathology / Q000662:veterinary*; D012756:Sheep; D012757:Sheep Diseases / Q000473:pathology*