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Cystic meningiomas in 2 dogs
R S Bagley1, J N Kornegay, S B Lane
1Department of Companion Animal and Special Species Medicine, North Carolina State University, College of Veterinary Medicine, Raleigh, USA.
Journal of Veterinary Internal Medicine
|March 1, 1996
Summary
Cystic intracranial lesions in dogs can be meningiomas. This study highlights that while uncommon, meningiomas should be considered in canine forebrain disease diagnosis.
Area of Science:
- Veterinary Neurology
- Canine Neuro-oncology
Background:
- Forebrain disease in dogs presents diagnostic challenges.
- Cystic intracranial lesions are an infrequent finding in canine neurology.
Observation:
- Two dogs with forebrain disease exhibited hypodense lesions on computed tomography (CT).
- Magnetic resonance imaging (MRI) revealed distinct signal characteristics in the T1-weighted and T2-weighted scans of the first dog.
Findings:
- Surgical exploration identified primary cystic intracranial lesions in both dogs.
- Histopathological analysis of adjacent abnormal tissue confirmed meningioma in both cases.
- Post-surgical whole brain irradiation was administered to both dogs.
Implications:
- Meningioma is a potential cause of cystic intracranial lesions in dogs.
- Early consideration of meningioma can aid in diagnosing canine forebrain disease.
- One dog survived for 3 years post-treatment, suggesting potential for long-term management.