Which areas of the brain and spinal cord are affected by meningitis?

Updated: Jul 16, 2019
  • Author: Rodrigo Hasbun, MD, MPH; Chief Editor: Michael Stuart Bronze, MD  more...
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Meningitis is a clinical syndrome characterized by inflammation of the meninges, the 3 layers of membranes that enclose the brain and spinal cord. These layers consist of the following:

  • Dura - A tough outer membrane

  • Arachnoid - A lacy, weblike middle membrane

  • Subarachnoid space - A delicate, fibrous inner layer that contains many of the blood vessels that feed the brain and spinal cord

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