[Psychosis-induced posttraumatic stress disorder. A rarely diagnosed symptom].

Patients with severe mental disorders encounter a rather high risk of also evolving symptoms of posttraumatic stress disorder (PTSD) as a result of psychotic experience. A wide overlap of symptoms makes the differentiation between "psychosis-induced PTSD" and "psychotic warning signs" difficult; nevertheless, the distinction is important as different therapy strategies must be envisaged. A case report of a psychosis-induced PTSD is given.