An autoimmune encephalitis panel by immunoblot was performed on serum and CSF, including surface antibodies (NMDA, LGI-1, CASPR2, AMPA, GABA-A, and GABA-B) and intracellular antibodies (Titin, SOX-1, Hu, Yo, Ri, Ma-2, CV-2, and amphiphysin) with negative result. Here, LGI1 is linked to autoimmune encephalitis.