ADE	acute disseminated encephalomyelitis
AMPAR1/2	a-amino-3-hydroxy-5-methylisoxazole-4-propionic acid receptor 1 and 2
ANA	antinuclear antibodies
aNAE	the amino (NH2)-terminal of α-enolase
APS	autoimmune polyendocrine syndromes
BDNF	brain-derived neurotrophic factor
Caspr2	contactin-associated protein 2
CNS	central nervous system
EEG	electroencephalography
EP	evoked potentials
ERP	event-related potentials
GABAAR	gamma-aminobutyric acid A receptor
HE	Hashimoto encephalopathy
HT	Hashimoto’s thyroiditis
TGAb	anti-thyroglobulin antibodies
TPOAb	anti-thyroid peroxidase antibodies
TSHRAb	TSH receptor blocking or stimulating antibodies
CIDP	chronic inflammatory demyelinating polyradiculoneuropathy
IgG4-RD	IgG4-related disease
IVIg	intravenous immunoglobulin
mI/Cr	myo-inositol/creatine
MRI	magnetic resonance imaging
MRS	magnetic resonance spectroscopy
MRS	magnetic resonance spectroscopy
NAA/Cr	N-acetylaspartate/creatine
NAIM	nonvasculitic autoimmune inflammatory meningoencephalitis
NMDAR	N-methyl-D-aspartate receptor
SPECT	single photon emission computed tomography
SREAT	steroid-responsive encephalopathy associated with autoimmune thyroiditis
TGA	transient global amnesia