Which histologic findings suggest Guillain-Barre syndrome (GBS)?

Updated: Jul 14, 2021
  • Author: Michael T Andary, MD, MS; Chief Editor: Milton J Klein, DO, MBA  more...
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Lymphocyte and macrophage infiltration is observed on microscopic examination of peripheral nerves, with macrophage influx believed to be responsible for the multifocal demyelination seen in GBS. A variable degree of wallerian degeneration also can be observed with severe inflammatory changes.

Cellular infiltrates are scattered throughout the cranial nerves, nerve roots, dorsal root ganglions, and peripheral nerves.

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