What is the role of imaging studies in the diagnosis 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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Imaging studies of the brain are essential to make the diagnosis of glioblastoma multiforme (GBM). For complete discussion, see Imaging in Glioblastoma Multiforme.

On CT scans, glioblastomas usually appear as irregularly shaped hypodense lesions with a peripheral ringlike zone of contrast enhancement and a penumbra of cerebral edema.

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