DPYSL5 and autoimmune encephalitis: Tests for other autoimmune encephalitis and onconeural antibodies were negative both in the CSF and serum, including α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid, mGluR5, γ-aminobutyric acid B, leucine-rich glioma-inactivated 1, contactin-associated protein-like 2, dipeptidyl-peptidase-like protein 6, glutamate decarboxylase 65, Hu, Yo, Ri, Ma2/Ta, and CV2/CRMP5.