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(Stroke. 1995;26:900-902.)
© 1995 American Heart Association, Inc.

Articles

Posterior Cerebral Artery Stenosis With Midbrain Infarction

Gary W. Duncan, MD Steven M. Weindling, MD

From the Division of Neurology, Meharry Medical College (G.W.D.), and the Rehabilitation Center (G.W.D.) and the Department of Medical Imaging, Columbia/HCA Centennial Medical Center, Nashville, Tenn.

Correspondence to Dr Duncan, Division of Neurology, Meharry Medical College, 1005 D.B. Todd Blvd, Nashville, TN 37208.

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.

Key Words: ataxia • brain stem infarction • oculomotor nerve • posterior cerebral artery • stenosis

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