title: [Value of hyperferritinemia and glycosylated ferritin in the diagnosis of adult-onset Still's disease. 3 case reports].
abstract: BACKGROUND
  The diagnosis of adult-onset Still's disease currently requires application of Yamaguchi's criteria and then exclusion of infectious, hematologic, autoimmune and neoplastic disorders. A recent article suggests that very high levels of serum ferritin together with an unusually low percentage of glycosylated ferritin may serve as diagnostic criteria or even as markers of disease progression. This new score has greater specificity than the other scores, including that of Yamaguchi.
  
  
  METHODS
  We describe 3 new cases with very high ferritin levels (exceeding 9000 microg/L) and glycosylated ferritin levels lower than 20%.
  
  
  CONCLUSIONS
  The diagnosis of Still's disease was determined in all three cases by both Yamaguchi's score and the new criteria. One patient responded well to treatment with colchicine.
  
  
  CONCLUSIONS
  Ferritin and glycosylated ferritin levels are interesting diagnostic markers. The new score suggested by Fautrel et al. is especially useful in that it does not require the exclusion of a list of differential diagnoses.
authors.affiliation: Service de médecine interne et rhumatologie, Hôpital de la Source, Centre hospitalier régional d'Orléans, Orléans. bacharchahine@hotmail.com
authors.forename: Bachar
authors.initials: B
authors.lastname: Chahine
authors.forename: François
authors.initials: F
authors.lastname: Luthier
mesh_terms: D000328:Adult; D003078:Colchicine / Q000627:therapeutic use; D003937:Diagnosis, Differential; D005260:Female; D005293:Ferritins / Q000097:blood*; D006074:Gout Suppressants / Q000627:therapeutic use; D006801:Humans; D016706:Still's Disease, Adult-Onset / Q000175:diagnosis* / Q000188:drug therapy; D006023:Glycoproteins
chemical_list: D003078:Colchicine; D005293:Ferritins; D006074:Gout Suppressants; C051036:glycosylated ferritin; D006023:Glycoproteins