LGI1 and Isaacs syndrome: The main targets for the Abs are LGI1, typically associated with LE, and a specific focal epilepsy, faciobrachial dystonic seizures (FBDS), and contactin-associated protein like 2 (CASPR2), associated with a broader spectrum of central and peripheral nervous system disorders such as LE, NMT, or a combination of the two (MoS).