CNTN1 and chronic inflammatory demyelinating polyradiculoneuropathy: In recent years, antibodies targeted proteins of the nodal/paranodal regions, including neurofascin 155 (NF155), neurofascin 186 (NF186), contactin‐1 (CNTN1) and contactin‐associated protein 1 (Caspr1), have been reported in the cases of CIDP, which were also known as autoimmune nodopathies and showed specific clinical characteristics compared with the classical CIDP.9, 10, 11, 12