A case of chronic demyelinating polyneuropathy resembling the Guillain-Barré syndrome.

A case of demyelinating polyneuropathy is reported which was clinically and pathologically indistinguishable from the Guillain-Barré syndrome, with the exception that the symptoms progressed steadily for 7 months. Pathologically, the peripheral nerves and intraspinal roots showed selective demyelination with axonal sparing and patchy mononuclear inflammation. The posterior columns of the spinal cord also showed selective demyelination with axonal sparing. The simultaneous destruction of central and peripheral myelin is discussed in relation to the immune theory for the Guillain-Barré syndrome. Numerous anterior horn cells showed severe chromatolysis although there was little axon loss. It is suggested that chromatolysis may occur after severe and longstanding demyelination.