Posterior Cerebral Artery Stenosis With Midbrain Infarction

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Abstract
Background Brain infarction secondary to stenosis of the posterior cerebral artery is uncommon. We report a patient with midbrain infarction and symptoms of both Benedikt’s and pupil-sparing oculomotor palsy syndromes secondary to posterior cerebral artery stenosis. Case Description A 51-year-old woman developed diplopia, left ptosis, and right hemiataxia and hyperactive tendon reflexes. Pupils were equal and reactive. Radiological examination revealed stenosis of the posterior cerebral artery and a left-sided midbrain infarct. Conclusions Stenosis of the posterior cerebral artery may cause only midbrain infarction and may be responsible for Benedikt’s and pupil-sparing oculomotor palsy syndromes.