Brain invasion by an otherwise benign meningioma in a cat.

Autor:	Arai K; Laboratory of Veterinary Surgery, Faculty of Veterinary Medicine, Okayama University of Science, Imabari, Ehime, Japan., Nakamura S; Laboratory of Veterinary Pathology, Faculty of Veterinary Medicine, Okayama University of Science, Imabari, Ehime, Japan., Matsubara K; Laboratory of Veterinary Pathology, Faculty of Veterinary Medicine, Okayama University of Science, Imabari, Ehime, Japan., Ozaki Y; Laboratory of Veterinary Pathology, Faculty of Veterinary Medicine, Okayama University of Science, Imabari, Ehime, Japan., Kadekaru S; Laboratory of Veterinary Pathology, Faculty of Veterinary Medicine, Okayama University of Science, Imabari, Ehime, Japan., Sugiyama A; Laboratory of Veterinary Pathology, Faculty of Veterinary Medicine, Okayama University of Science, Imabari, Ehime, Japan., Mitsui I; Laboratory of Veterinary Anatomy, Faculty of Veterinary Medicine, Okayama University of Science, Imabari, Ehime, Japan., Akashi N; Laboratory of Veterinary Anesthesiology, Faculty of Veterinary Medicine, Okayama University of Science, Imabari, Ehime, Japan., Yoshitake R; Faculty of Veterinary Medicine, Okayama University of Science, Imabari, Ehime, Japan., Kutara K; Laboratory of Veterinary Internal Medicine I, Faculty of Veterinary Medicine, Okayama University of Science, Imabari, Ehime, Japan.
Jazyk:	angličtina
Zdroj:	JFMS open reports [JFMS Open Rep] 2024 Dec 16; Vol. 10 (2), pp. 20551169241291842. Date of Electronic Publication: 2024 Dec 16 (Print Publication: 2024).
DOI:	10.1177/20551169241291842
Abstrakt:	Case Summary: A 13-year-old castrated male American Shorthair cat was referred for evaluation following a 3-week history of poor balance and decreased activity. The MRI findings revealed a well-defined left caudal cerebellar mass with a diameter of 1.2 cm, consistent with a meningioma. CT and MRI scans did not reveal metastasis. After a suboccipital craniotomy, the mass was resected subtotally as a result of parenchymal invasion. A histopathological examination revealed a benign fibrous meningioma with invasion into the cerebellum at the tumour margins. Postoperatively, the cat remained asymptomatic for 25 months, but ataxia recurred, and tumour recurrence was confirmed using MRI and post-mortem examination. Relevance and Novel Information: This case demonstrates that even feline meningiomas with benign features can exhibit brain invasion. Since brain invasion is an indicator of malignancy in meningioma, a detailed histopathological evaluation of the tumour margins is essential for accurate grading and prognosis. Competing Interests: The authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article. (© The Author(s) 2024.)
Databáze:	MEDLINE
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