[Acute delusional disorder with dissociative symptoms--case report].

Delusions are amongst the main symptoms of schizophrenia. Delusional states may be caused by stress, somatic illness, or may be idiopathic, such as the persistent delusional disorder. Determination of a cause is usually difficult, but it is really important for the treatment. A case report of acute delusional disorder complicated by dissociative symptoms, suggesting an organic cause of the disorder is presented. Delirium caused by neuroleptic intoxication was an additional complication. Detailed informations gathered from relatives and psychological examinations made it possible to determine personality disorder as a ground, and stress as a precipitating factor of acute delusional disorder. Hospitalisation and psychological support helped in getting rid of the psychotic symptoms.