Graus et al reported a number of criteria applicable to the diagnosis of autoimmune encephalitis. One criterion screens a patient for possible autoimmune encephalitis. The authors are from multiple institutions from around the world.
Patient selection: possible autoimmune encephalitis
Criteria for possible autoimmune encephalitis - all of the following:
(1) subacute onset (less than 3 months)
(2) one or more of the following:
(2a) new focal CNS finding
(2b) seizures not explained by previously known seizure disorder
(2c) CSF white blood cell count > 5 per microliter
(2d) MRI scan suggestive of encephalitis
(3) reasonable exclusion of alternative diagnoses
where:
• The onset may include: short-term memory loss, altered mental status, psychiatric symptoms.
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