Magnetic resonance imaging of nerve root inflammation in the Guillain-Barré syndrome.

We report gadolinium-enhancing nerve root lesions in a 52-year-old man with typical Guillain-Barré syndrome (GBS). This enhancement correlates well with the perineurial inflammatory and demyelinating processes known to characterize GBS and other inflammatory neuropathies. MRI should enable further exploration of patterns of disease in GBS and, with further study, perhaps assist in evaluating therapy.