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J Stroke Cerebrovasc Dis · Jul 2008
Case ReportsConcurrent presentation of perimesencephalic subarachnoid hemorrhage and ischemic stroke.
- Maarten G Lansberg.
- Neurology and Neurological Sciences, Stanford University, Palo Alto, California 94304, USA. lansberg@stanford.edu
- J Stroke Cerebrovasc Dis. 2008 Jul 1; 17 (4): 248-50.
AbstractPerimesencephalic subarachnoid hemorrhage (SAH) is a relatively benign form of SAH. The etiology of this condition is unknown but venous leakage has been believed to be the most likely cause. This report describes a patient with perimesencephalic SAH who presented with a concurrent acute pontine infarct demonstrated on diffusion-weighted magnetic resonance imaging. These findings suggest that in some instances perimesencephalic SAH is caused by rupture of a perforating artery.
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