The investigators wish to test a diagnostic risk score for autoimmune encephalitis in case of encephalitis, previously validated by two American teams, in a retrospective analysis, according to the clinical and paraclinical data available in our database of the Reference Centre for Autoimmune Encephalitis and Paraneoplastic Neurological Syndromes of Professor Honnorat for patients with NMDAr, anti LGi1, anti CASPR2, anti GABAbr and anti GAD antibodies.
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Validation of a diagnostic score for encephalitis to assess the risk of autoimmune origin.
Timeframe: At baseline
Symptoms in the acute phase
Timeframe: At baseline
Mode of onset of disease
Timeframe: At baseline
Results of lumbar puncture
Timeframe: At baseline
Results of antineuronal antibodies in CSF
Timeframe: At baseline
Results of antineuronal antibodies in serum
Timeframe: At baseline