[Dynamics of delusions during the late stages of paranoid schizophrenia].

Under examination there were 100 patients with paranoid schizophrenia who had reached an old age. In all the patients signs of delusion reduction were observed at the late stages of the disease. It was shown that most delusional disorders tended to transform into residual ones and to become peculiar manifestations of the derangement. Against this background it was actual delusional experiences that persisted most frequently. More and more place in their structure took psychopathological elements that reflected various aspects of the ageing of the patients' psychosis.