Infectious Trigger for Autoimmune Encephalitis: A Case Report and Literature Review

Table 1

CSF analysis, HSV PCR, and anti-NMDAR Ab titer over time for our case.

CSF analysis	April 2017	June 2017	January 2018	March 2018	Ref. range
Appearance	Clear	Clear	Clear	Clear	Clear
WBC (% lymphocytes)	25 (95%)	21 (94%)	3 (95%)	4 (94%)	0–5 mm^3
RBC	240	2	40	0	0–5 mm^3
Protein	94	107	57	56	15–45 mg/dl
Glucose	ND	58	57	66	40–70 mg/dl
HSV PCR	Positive	Negative	Negative	Negative	Negative
Anti-NMDAR Ab	ND	Positive 1 : 64	Positive 1 : 10	Positive 1 : 20	Negative

CSF: cerebrospinal fluid, WBC: white blood cells, RBC: red blood cells, ND: not detected, HSV PCR: herpes simplex virus polymerase chain reaction, and anti-NMDAR Ab: antibodies against N-methyl-D-aspartate receptor.