Brain invasion by an otherwise benign meningioma in a cat.

IF 0.7 Q3 VETERINARY SCIENCES
Journal of Feline Medicine and Surgery Open Reports Pub Date : 2024-12-16 eCollection Date: 2024-07-01 DOI:10.1177/20551169241291842
Kiyotaka Arai, Shinichi Nakamura, Kanami Matsubara, Yuma Ozaki, Sho Kadekaru, Akihiko Sugiyama, Ikki Mitsui, Natsuki Akashi, Ryohei Yoshitake, Kenji Kutara
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引用次数: 0

Abstract

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.

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来源期刊
CiteScore
1.30
自引率
14.30%
发文量
57
审稿时长
15 weeks
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