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Case Reports
Plastic in the Brain: Delayed Recognition of Progressive Unilateral Hemispheric Lesions.
- Ali Daneshmand, Karl N Krecke, and Wijdicks Eelco F M EFM Division of Critical Care Neurology and Radiology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA. wijde@mayo.edu..
- Division of Critical Care Neurology and Radiology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA.
- Neurocrit Care. 2019 Aug 1; 31 (1): 222-224.
BackgroundFlow diverters are increasingly used to treat complex ruptured intracranial aneurysms. Most complications are ischemic and seen early after placement.MethodsWe present a patient with 3 year duration of neurologic symptoms and seizures as a result of lesions associated with a inflammatory response to embolized polymer coating.ResultsOver a period of 3 years MRI abnormalities were noted with substantial gadolinium enhancement of the stent but with resolution after corticosteroids.ConclusionPolymer embolization associated with a flow diverter may cause fluctuating unilateral hemisheric lesions and become symptomatic. Inflammatory response to a foreign body (polymer strands) can be succesfully treated with corticosteroids.
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