Unusual Features in Four Canine Meningiomas

Several subtypes of canine meningioma are recognized. This report describes four canine meningiomas with previously unreported features. The four affected dogs were of different breeds. Three of the affected dogs were male and aged 7–10 years. In one dog, age and gender were not recorded. Meningioma...

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Bibliographic Details
Published in:Journal of comparative pathology 2013-08, Vol.149 (2-3), p.237-241
Main Authors: Schöniger, S., Woolford, L., Jutras, L., Head, E., de Lahunta, A., Summers, B.A.
Format: Article
Language:English
Subjects:
amyloid
Animals
Biomarkers, Tumor - analysis
breeds
collagen
dog
Dog Diseases - pathology
Dogs
Female
gemistocyte-like tumour cells
gender
humans
Immunohistochemistry
Male
Meningeal Neoplasms - pathology
Meningeal Neoplasms - veterinary
meningioma
Meningioma - pathology
Meningioma - veterinary
rhabdoid tumour
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Summary:Several subtypes of canine meningioma are recognized. This report describes four canine meningiomas with previously unreported features. The four affected dogs were of different breeds. Three of the affected dogs were male and aged 7–10 years. In one dog, age and gender were not recorded. Meningiomas were located intracranially (three dogs) or within the vertebral canal (one dog). Two meningiomas resembled gemistocytic astrocytomas, while one had focal features of a rhabdoid tumour; these three meningiomas also contained amyloid deposits. The fourth tumour, a secretory meningioma, was rich in amianthoid fibres (i.e. unusual collagen deposits containing giant collagen fibres). All of these features are also described in human meningiomas.
ISSN:0021-9975
1532-3129
DOI:10.1016/j.jcpa.2013.03.003