Cerebral arteriovenous malformation presenting as isolated bilateral pupil-sparing oculomotor, pseudoabducens palsy, and hemiataxia
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Most cases of pseudoabducens palsy, which is defined as a failure of ocular abduction not due to dysfunction of the sixth nerve or its nucleus (but due to an impaired inhibitory descending supranuclear pathway of convergence activity), are associated with diencephalon-mesencephalic infarction [ 1, 2]. Most pupil-sparing oculomotor palsy is usually attributed to microvascular ischemia, such as diabetes, hypertension, and dyslipidemia. We reported a rare case of cerebral arteriovenous malformation (AVM) presenting with bilateral pupil-sparing oculomotor palsy and pseudoabducens palsy. A 30-year-old woman was admitted to our department for progressive binocular diplopia, subtle left side clumsiness, and gait disorder since 2010. Diplopia was found in all directions. When in a neutral position, both eyes slightly deviated to medial-lower side. There was no fever, headache, stiff neck, or diurnal change. Neurological examination reveals partial paralysis of all the extraocular...
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The authors declare that they have no conflict of interest.
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