Peer-reviewed veterinary case report
Surgery removes brain tumor causing balance issues in adult cat
By Cossic, B et al.·Published in The Journal of small animal practice·2017·Department of Biomedical Sciences, United States·View original on PubMed →
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Original publication title: Surgical removal of a choroid plexus oncocytoma in an adult cat.
- Species:
- cat
Plain-English summary
An 11-year-old male domestic shorthair cat was brought in because he was having trouble with balance and coordination, showing signs of left central vestibular dysfunction. An MRI showed a large mass in his brain that was pressing on important areas. The mass was surgically removed, and it turned out to be a rare type of tumor called a choroid plexus oncocytoma. After the surgery, the cat's symptoms improved, demonstrating that surgery can be effective for this type of brain tumor in cats.
People also search for: cat balance problems · cat brain tumor surgery · vestibular dysfunction in cats · choroid plexus oncocytoma in cats
Abstract
An 11-year-old male castrated domestic shorthair cat presented with left central vestibular dysfunction. Magnetic resonance imaging of the brain revealed a large, extra-parenchymal, strongly contrast-enhancing mass at the level of the left cerebellopontine angle and compressing the cerebellum and brainstem. The mass was surgically excised via left rostral and sub-tentorial craniectomies and histopathology revealed an epithelial neoplasm composed of anastomosing cords of neoplastic cells that contained large amounts of finely granular hypereosinophilic cytoplasm and round nuclei. The cytoplasmic granules were variably positive with periodic acid-Schiff and modified Gomori trichrome. Immunohistochemical staining with anti-cytokeratin AE1/AE3 was diffusely positive. Electron microscopy revealed neoplastic cells that were full of electron-dense organelles consistent with mitochondria. This is the first case of a choroid plexus oncocytoma in the central nervous system of any domestic animal species and highlights the role of successful surgical intervention in extra-parenchymal neoplasia in the central nervous system.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/28379624/