title: Hypereosinophilic syndromes.
abstract: Hypereosinophilia (>0.5x10(9)/L) is a common clinical finding that can be secondary to a large variety of diseases (helminth infections, allergic diseases, drug reactions, specific organ disease, malignancies, systemic diseases). When a complete evaluation of a chronic hypereosinophilia fails to reveal an underlying disease, the diagnosis of hypereosinophilic syndrome (HES) or Churg-Strauss syndrome (CSS) is suggested.
authors.affiliation: French Eosinophil Network, Department of Immunology, CHRU de Lille, Université Lille, Lille, France.
authors.forename: Jean-Emmanuel
authors.initials: JE
authors.lastname: Kahn
authors.forename: Olivier
authors.initials: O
authors.lastname: Blétry
authors.forename: Loïc
authors.initials: L
authors.lastname: Guillevin
mesh_terms: D015267:Churg-Strauss Syndrome / Q000150:complications / Q000473:pathology / Q000628:therapy; D004802:Eosinophilia / Q000175:diagnosis* / Q000209:etiology / Q000628:therapy; D005260:Female; D006801:Humans; D017681:Hypereosinophilic Syndrome / Q000150:complications / Q000175:diagnosis* / Q000628:therapy; D008297:Male