What is the role of EEG in the workup of glioblastoma multiforme (GBM)?

Updated: Jul 01, 2019
  • Author: Jeffrey N Bruce, MD; Chief Editor: Herbert H Engelhard, III, MD, PhD, FACS, FAANS  more...
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Electroencephalography (EEG) performed on a patient with glioblastoma multiforme may show generalized diffuse slowing and/or epileptogenic spikes over the area of the tumor. However, findings specific for glioblastoma cannot be observed on EEG.

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