It must be noted that there are other chronic immune-mediated neuropathies, such as multifocal motor neuropathy (84), neuropathy associated with antibodies to myelin-associated glycoprotein (MAG) (85) and Polyneuropathy, Organomegaly, Endocrinopathy, Monoclonal Gammopathy, and Skin Changes Syndrome (POEMS) (86) that are not regarded as CIDP. The gene discussed is MAG; the disease is endocrine system disorder.