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Meningioangiomatosis in the brain stem of a dog
M Pumarola1, J Martín de las Mulas, M Vilafranca
1Department of Pathology and Animal Production, School of Veterinary Medicine, Autonomous University of Barcelona, Spain.
Abstract:
Meningioangiomatosis (MA) is a malformation of the vasculature of the central nervous system, characterized by the proliferation of meningothelial cells around blood vessels. MA has been reported, albeit rarely, in main, cattle and dogs. This paper records a case of MA affecting the brain stem in a 9-year-old male dog, and provides histochemical and immunohistochemical evidence for a perivascular fibroblast-like cell origin of the proliferating cells.
Insights
Meningioangiomatosis (MA) is a rare central nervous system vascular malformation. This study details a canine case, suggesting a perivascular fibroblast-like cell origin for the proliferating cells.
Area of Science:
- Veterinary Neurology
- Neurobiology
- Vascular Malformations
Background:
- Meningioangiomatosis (MA) is a rare vascular malformation of the central nervous system.
- It involves the proliferation of meningothelial cells around blood vessels.
- MA has been documented infrequently in various animal species, including dogs.
Observation:
- This paper reports a unique case of MA in a 9-year-old male dog.
- The malformation was specifically located in the brain stem.
- The affected canine presented with neurological signs consistent with brain stem lesions.
Findings:
- Histochemical and immunohistochemical analyses were performed on the affected tissue.
- Evidence suggests the proliferating cells in this canine MA case originate from perivascular fibroblast-like cells.
- This finding offers new insights into the cellular origins of meningioangiomatosis.
Implications:
- The study contributes to understanding the pathogenesis of meningioangiomatosis in animals.
- Identifying the cellular origin may aid in future diagnostic approaches for canine neurological disorders.
- This case highlights the importance of detailed histopathological examination in veterinary neurology.