Several variants have been reported. Specially important are: * An asymmetrical variant of<unk>  is known as Lewis-Sumner Syndrome. or MADSAM (multifocal acquired<unk>  sensory and motor neuropathy) * A variant with CNS involvement named combined central and peripheral demyelination (CCPD) Currently there is one special variant in which the CNS is also affected. It is termed "combined central and peripheral demyelination" (CCPD) and is special because it belongs at the same time to the CDIP syndrome and to the multiple sclerosis spectrum. These cases seem to be related to the presence of anti-neurofascin autoantibodies.
Chronic inflammatory demyelinating polyneuropathy
Tropical neuropathy
Critical illness polyneuropathy
Paraneoplastic cerebellar degeneration
Hereditary motor and sensory neuropathy
Alcoholic polyneuropathy
CMV polyradiculomyelopathy
Peripheral mononeuropathy