[Psychosis in affective disorders].

Psychosis in affective disorder is prevalent as 15-20% of depressive patients and approximately 50% of manic patients present with psychotic features. Psychosis in conjunction with affective disorder has a poor prognosis. It is particularly so for depression where psychosis is associated with an increased risk of recurrence, development of bipolar disorder and suicide. It is still being debated whether these conditions reflect independent illness entities and their relationship to schizoaffective disorder and schizophrenia is also unresolved.