Peer-reviewed veterinary case report
Cat with eye bulging caused by rare orbital tumor
By Leonardi, Leonardo et al.·Published in Veterinary Sciences·2021·Department of Veterinary Medicine, University of Perugia, Via San Costanzo, 4-06126 Perugia, Italy, Italy·View original on Crossref →
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Original publication title: A First Case Report of Orbital Extra-Adrenal Paraganglioma in Cat
- Species:
- cat
Plain-English summary
An 18-year-old spayed female domestic shorthair cat was brought to the vet because her right eye was bulging out (exophthalmos). After examining her, the vet decided to perform surgery to remove the affected eye and the mass behind it. The tissue was sent for further testing, which confirmed that the cat had a rare tumor called an extra-adrenal paraganglioma. Following the surgery, the cat's condition was diagnosed, and she received appropriate care for her recovery.
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Abstract
Paraganglioma is a rare neuroendocrine neoplasm originating from paraganglia and consisting of neuroendocrine cells of the sympathetic and parasympathetic nervous system. Extra-adrenal paraganglioma occurs with a low incidence in both humans and animals. This report presents the first case of paraganglioma in a cat with orbital primary location. An 18-year-old spayed female European domestic shorthair cat of 3.60 kg body weight was evaluated in a private veterinary clinic in Perugia, Italy, for a pronounced exophthalmos of the right eye. The cat underwent surgery for the enucleation of the right eye and of the mass. The biopsy samples of the removed tissue were fixed in 10% buffered neutral formalin for histological and immunohistochemical evaluations. Therefore, specific markers were used for immunohistochemical investigations, such as anti-neuron specific enolase (NSE), anti-synaptophysin, anti-glial fibrillary acid protein, anti-cytokeratin and anti-chromogranin. The results of these investigations allowed establishing the final diagnosis of ocular extra-adrenal paraganglioma of the cat.
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Search related cases →Original publication on Crossref: https://doi.org/10.3390/vetsci8050086