Feline meningioma with extensive nasal involvement

A 9-year-old male neutered domestic longhair cat was presented with a 3 week history of lethargy and pain of unknown origin. A large extra-axial mass was demonstrated on MRI of the head, with cribriform plate destruction, extensive nasal invasion and intracranial expansion, producing a severe mass e...

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Bibliographic Details
Published in:JFMS open reports 2019, Vol.5 (1), p.2055116919833732
Main Authors: Pérez-Accino, Jorge, Suñol, Anna, Munro, Elizabeth, Philbey, Adrian W, Marioni-Henry, Katia
Format: Article
Language:English
Subjects:
Brain cancer
Case Report
Frontal
intracranial
meningioma
nasal
Nose
osteolysis
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Summary:A 9-year-old male neutered domestic longhair cat was presented with a 3 week history of lethargy and pain of unknown origin. A large extra-axial mass was demonstrated on MRI of the head, with cribriform plate destruction, extensive nasal invasion and intracranial expansion, producing a severe mass effect. The mass was isointense on T1-weighted imaging, predominantly hypointense with some hyperintense areas on T2-weighted imaging and fluid attenuation inversion recovery, markedly contrast enhancing, and caused transtentorial and cerebellar herniation. Histopathological evaluation confirmed a transitional (mixed) meningioma. To our knowledge this is the first report of a meningioma with extensive nasal involvement in a cat. Based on this case, meningioma should be considered as a differential diagnosis for tumours involving the nasal cavity and frontal lobe with cribriform plate destruction.
ISSN:2055-1169
2055-1169
DOI:10.1177/2055116919833732