No CNS‐specific autoantibodies (anti‐AQP4, anti‐MOG; onconeural panel: anti‐ Hu, Ma/Ta, GAD, amphiphysin, CV2/CRMP5; autoimmune encephalitis panel: anti‐NMDA‐R, LG1, CASPR2, GABA‐A and B, AMPA, Glu‐R1, Gly‐R1, and D2) were detected. This evidence concerns the gene DPYSL5 and autoimmune encephalitis.