Peer-reviewed veterinary case report
Dog with brain tumor causing right eye nerve paralysis
By Webb, Aubrey A et al.·Published in Veterinary ophthalmology·2005·Department of Biomedical Sciences, Canada·View original on PubMed →
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Original publication title: Intracranial meningioma causing internal ophthalmoparesis in a dog.
- Species:
- dog
Plain-English summary
A 10-year-old spayed female Irish water spaniel was brought to the vet with a two-week history of one pupil being larger than the other (anisocoria), specifically the right eye. After thorough eye and neurological exams, along with MRI scans, the vet discovered a mass in the dog's brain causing the issue. Unfortunately, the dog's condition worsened rapidly, leading to a coma within 12 hours after the MRI, and she was euthanized. The mass was diagnosed as a meningioma, a type of brain tumor.
People also search for: dog eye problems · anisocoria in dogs · meningioma treatment in dogs · dog brain tumor symptoms
Abstract
A 10-year-old, spayed female, Irish water spaniel was presented with a 2-week history of anisocoria characterized by mydriasis of the right eye compared to the left eye in ambient light. Ophthalmic and neurological examinations, combined with pharmacological testing, identified a disease process affecting the right parasympathetic nucleus of cranial nerve 3 (CN III) and/or the parasympathetic component of CN III. Magnetic resonance imaging (MRI) identified a mass involving the right midbrain and extending caudally to the rostral border of the medulla oblongata. The dog became comatose within 12 h following MRI and was euthanized. Histopathology identified the intracranial mass as a meningioma.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/16359366/