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Updated: Jun 13, 2026
Ferric Chloride-induced Canine Carotid Artery Thrombosis: A Large Animal Model of Vascular Injury
Published on: September 7, 2018
Imaging diagnosis--Canine meningioangiomatosis
Rita Gonçalves1, Pamela Johnston, Annette Wessmann
1Department of Veterinary Clinical Sciences, University of Liverpool, Leahurst, Chester High Road, Neston CH64 7TE, UK. r.goncalves@liv.ac.uk
Abstract:
Meningioangiomatosis is a rare proliferative disorder of the central nervous system. It occurs sporadically in dogs and is characterized by a leptomeningeal plaque that extends from the subarachnoid space along the perivascular spaces into the adjacent parenchyma. We describe the clinical presentation, magnetic resonance (MR) imaging and neuropathologic characteristics of two additional dogs with meningioangiomatosis, and document involvement of the thoracolumbar spinal cord, a site not previously described for this condition. MR imaging findings were different from those previously described, most likely reflecting the degree of vascularity and collagen deposition. The MR imaging features of meningioangiomatosis are not specific.
Insights
Meningioangiomatosis, a rare central nervous system disorder in dogs, can affect the spinal cord. Magnetic resonance imaging findings for this condition are not specific and can vary.
Area of Science:
- Veterinary Neurology
- Neuro-oncology
- Comparative Pathology
Background:
- Meningioangiomatosis is a rare, sporadic proliferative disorder affecting the central nervous system (CNS) in dogs.
- It is characterized by leptomeningeal plaque formation extending into the CNS parenchyma via perivascular spaces.
Observation:
- This report details two canine cases of meningioangiomatosis involving the thoracolumbar spinal cord, a previously undescribed site.
- Clinical presentation, magnetic resonance (MR) imaging, and neuropathologic features were documented for both cases.
Findings:
- MR imaging findings in these cases differed from previous descriptions, potentially due to variations in vascularity and collagen deposition.
- The study highlights that MR imaging features of meningioangiomatosis are not specific, necessitating careful neuropathologic correlation.
Implications:
- This study expands the known anatomical distribution of meningioangiomatosis in dogs to include the spinal cord.
- Recognizing variable MR imaging presentations is crucial for accurate diagnosis and understanding the pathophysiology of canine meningioangiomatosis.
