Previous guidelines have highlighted CIDP in association with concomitant diseases that include diabetes, as well as other disorders such as IgG or IgA monoclonal gammopathy of unknown significance, IgM monoclonal gammopathy without anti-MAG (myelin associated glycoprotein) antibodies, connective tissue diseases, and human immunodeficiency virus (HIV) infection (10). This evidence concerns the gene MAG and monoclonal gammopathy.