Table 1.

Patients’ cerebrospinal fluid (CSF) and serum analysis characteristics.

Cerebrospinal fluid analysis
Patient 1	Cytochemical examination	Result	Autoimmune panel	Titer
	Appearance	Clear	Anti Ca2+ Channel Ab	Negative
	White cells	3 cells/mm3	Aanti VGCK Ab	Negative
	Glucose	60.4 mg/dl	Anti GLUR3 Ab	Negative
	Proteins	31.8 mg/dl	Anti AMPAR1,2 Ab	Negative
	Microbiological panel		Anti CASPR2 Ab	Negative
	HSV-1	Negative	Anti LGI1 Ab	Negative
	HSV-2	Negative	Anti NMDAR Ab	Negative
	HHV-6	Negative	Anti GABAR Ab	Negative
	HHV-7	Negative	Anti GAD65 Ab	Negative
	HHV-8	Negative	Anti MOG Ab	Negative
	CMV	Negative	Anti AQP4 Ab	Negative
	EBV	Negative	Oligoclonal bands	Negative
	VZV	Negative
Patient 2	Cytochemical examination	Result	Autoimmune panel	Titer
	Appearance	Clear	Anti Ca2+ Channel Ab	Negative
	White cells	1 cells/mm3	Aanti VGCK Ab	Negative
	Glucose	54 mg/dl	Anti GLUR3 Ab	1:2
	Proteins	26 mg/dl	Anti AMPAR1,2 Ab	Negative
	Microbiological panel		Anti CASPR2 Ab	Negative
	HSV-1	Negative	Anti LGI1 Ab	Negative
	HSV-2	Negative	Anti NMDAR Ab	Negative
	HHV-6	Negative	Anti GABAR Ab	Negative
	HHV-7	Negative	Anti GAD65 Ab	Negative
	HHV-8	Negative	Anti MOG Ab	Negative
	CMV	Negative	Anti AQP4 Ab	Negative
	EBV	Negative	Oligoclonal bands	Negative
	VZV	Negative

Serum analysis
Patient 1	Autoimmune panel	Titer
	Anti Ca2+ Channel Ab	Negative	Anti-Ma1 Ab	Negative
	Anti VGCK Ab	Negative	Anti-Ma2/Ta Ab	Negative
	Anti GLUR3 Ab	Negative	Anti-CV2/CRMP5 Ab	Negative
	Anti AMPAR1,2 Ab	Negative	Anti-Hu Ab	Negative
	Anti CASPR2 Ab	Negative	Anti-Ri p54 Ab	Negative
	Anti LGI1 Ab	Negative	Anti-Yo Ab	Negative
	Anti NMDAR Ab	Negative	Anti-recoverin Ab	1:32
	Anti GABAR Ab	Negative	Anti-amphiphysin Ab	Negative
	Anti GAD65 Ab	Negative	Anti-SOX1 Ab	Negative
	ANA	Negative	Anti-Zic4 Ab	Negative
	ENA	Negative	Anti-titin Ab	Negative
	Antiphospholipid antibodies	Negative	Anti-Tr Ab	Negative
Patient 2	Autoimmune panel	Titer
	Anti Ca2+ Channel Ab	Negative	Anti-Ma1 Ab	Negative
	Anti VGCK Ab	Negative	Anti-Ma2/Ta Ab	Negative
	Anti GLUR3 Ab	1:200	Anti-CV2/CRMP5 Ab	Negative
	Anti AMPAR1,2 Ab	Negative	Anti-Hu Ab	Negative
	Anti CASPR2 Ab	Negative	Anti-Ri p54 Ab	Negative
	Anti LGI1 Ab	Negative	Anti-Yo Ab	Negative
	Anti NMDAR Ab	Negative	Anti-recoverin Ab	Negative
	Anti GABAR Ab	Negative	Anti-amphiphysin Ab	Negative
	Anti GAD65 Ab	Negative	Anti-SOX1 Ab	Negative
	ANA	Negative	Anti-Zic4 Ab	Negative
	ENA	Negative	Anti-titin Ab	Negative
	Antiphospholipid antibodies	Negative	Anti-Tr Ab	Negative

AMPAR, alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor; ANA, antinuclear antibody; AQP4, aquaporin-4; CASPR2, anti-contactin-associated protein-like 2; CMV, cytomegalovirus; CV2/CRMP5, collapsin response mediator protein; EBV, Epstein-Barr virus; GABAR, anti-y-aminobutyric acid-beta-receptor 1; ENA, extractable nuclear antigen; GAD65, glutamic acid decarboxylase 65; GLUR3, glutamate receptor 3; HSV, herpes simplex virus; HHV, human herpes virus; LGI1, leucine-rich glioma inactivated 1; MOG, myelin oligodendrocyte glycoprotein; NMDAR, N-methyl-D-aspartate receptor; SOX1, superoxide dismutase 1; Tr, thyrotropin; VGCK, voltage-gated potassium channel; VZV, varicella-zoster virus; Zic4, zinc finger protein.

Bold numbers are used to identify pathological findings.