Delusional parasitosis or Ekbom's syndrome.

Introduction. - Ekbom's syndrome or delusional parasitosis is a disorder in which the patient believes that he/she is infected by a parasite. Epidemio logic, nosologic, psychopathologic and therapeutic data can barely be inter preted, as delusional parasitosis has mostly been described in either isola ted cases or small cohorts. An extensive literature review is recommended t o better understand common features associated with this syndrome. Exegesis, - Ekbom 's syndrome is a chronic disorder that may occur at any a ge but is more common in the elderly particularly in females, international classifications have included this syndrome in non-schizophrenic delusions . However, it has also been reported in schizophrenia, affective disorders, and organic or induced psychosis. Treatment is based on antipsychotic agen ts, psychotherapy and cooperation between dermatologists and psychiatrists. Conclusion. - Pimozide is currently the most effective treatment. If requir es careful monitoring, as it has several adverse effects. For patients with concomitant depressive symptoms, the use of antidepressants is recommended . (C) 2000 Editions scientifiques et medicales Elsevier SAS.