Intracranial meningioma causing internal ophthalmoparesis in a dog |
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| Authors: | Webb Aubrey A Cullen Cheryl L Rose Patricia Eisenbart David Gabor Les Martinson Shannon |
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| Institution: | Department of Biomedical Sciences, Atlantic Veterinary College, Universit of Prince Edward Island, Charlottetown, PE, Canada. |
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| 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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| Keywords: | anisocoria canine Holmes–Adie syndrome meningioma pupillotonia |
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