[Dysthymic schizophrenia. Reality or fiction?].

After an historical survey about the origin and the evolution of the concept of schizo-affective psychosis (i.e. in French schizophrénie dysthymique), a review of the recent bibliography reveals that the different models of classification are a subject for discussion. Studies tend to corroborate the model of an heterogeneous group with schizophrenic patients and manic-depressive patients.