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Posterior cerebral artery stenosis with midbrain infarction
1Division of Neurology, Meharry Medical College, Nashville, TN 37208, USA.
Stroke
|May 1, 1995
Summary
Posterior cerebral artery stenosis can cause midbrain infarction, leading to rare neurological syndromes like Benedikt's and pupil-sparing oculomotor palsy. This case highlights an uncommon cause of stroke in the brainstem.
Area of Science:
- Neurology
- Vascular Neurology
- Neuroimaging
Background:
- Posterior cerebral artery (PCA) stenosis is an infrequent cause of brain infarction.
- Midbrain infarction is a rare clinical presentation of PCA stenosis.
Observation:
- A 51-year-old woman presented with diplopia, left ptosis, and right hemiataxia.
- Neurological examination revealed equal and reactive pupils.
- Radiological findings showed PCA stenosis and a left-sided midbrain infarct.
Findings:
- The patient's symptoms were consistent with Benedikt's syndrome and pupil-sparing oculomotor palsy.
- The midbrain infarction was directly attributed to the identified PCA stenosis.
Implications:
- PCA stenosis should be considered in the differential diagnosis of midbrain infarction.
- This case expands the understanding of neurological deficits associated with PCA stenosis.
- Recognizing this association aids in timely diagnosis and management of posterior circulation stroke.