Are the new diagnoses needed in psychiatry, or is it enough for us to remember valentin magnan’s bouffée délirante? (To the article by E.V. Snedkov and co-authors ‘Is anti-NMDA receptor encephalitis real?’)

New clinical observations and new scientific data lead to the identification of new diseases. Anti-NMDA receptor encephalitis, which mainly develops in young women due to ovarian teratoma and other suspected etiological factors, manifested by numerous neurological and psychiatric symptoms that give an acute condition resembling primary mental disorders, and accompanied by the appearance of antibodies to NMDA receptors, is one example of this kind. Some experts are questioning whether anti-NMDA receptor encephalitis should be considered a separate neuropsychiatric disorder. This article analyses a recent publication by one of the groups opposing the new diagnosis.