Psychotic Disorders - Differential Diagnosis Algorithm Mood disorder with psychotic features • Psychotic symptoms present exclusively during major mood syndrome Schizoaffective disorder (bipolar & depressive) • Psychotic symptoms also present outside of mood episodes Brief psychotic disorder • Duration of illness 1 month Schizophreniform Disorder • Duration of illness 1-6 months Schizophrenia • Duration of illness > 6 months Delusional disorder • Non-bizarre delusions 1 month, no decline in functioning, behaviour is not odd Shared psychotic disorder (Folie a Deux) • Delusions developed in context of close relationship with a person with already established similar delusion #Psychotic #Disorders #Differential #Diagnosis #Algorithm #Psychiatry #Delusions #Psychosis
