Brain invasion by an otherwise benign meningioma in a cat

Kiyotaka Arai, Shinichi Nakamura, Kanami Matsubara, Yuma Ozaki, Sho Kadekaru, Akihiko Sugiyama, Ikki Mitsui, Natsuki Akashi, Ryohei Yoshitake, Kenji Kutara

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.

Journal of Feline Medicine and Surgery Open Reports

SAGE Journals

10

2

20551169241291842

20551169241291842