Autoimmune disorder due to encephalitis with NMDA receptor antibodies (Q90476)

This is a groups of disorders in which autonomic dysfunction is secondary to an encephalitis characterised by positive N-methyl D-aspartate receptor (NMDAR) antibodies. Patients progress from mental status changes, seizures and language dysfunction to unresponsiveness with catatonic features often associated with abnormal movements and autonomic and breathing instability.