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We report the case of an intellectually deteriorating 66-year-old man who presented with an epileptic seizure.CT of the brain suggested a low-grade astrocytoma,but MRI showed multiple punctate hemorrhagic lesions and a demyelination of vascular origin.Brain biopsy revealed depositions of amyloid in cortical and meningeal arteries.MRI may be of value in diagnosing cerebral amyloid angiopathy associated with leukoencephalopathy and petechial hemorrhages. |
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