title: [Children with fever peaks and bone and joint pain: systemic juvenile idiopathic arthritis or acute lymphoblastic leukemia after all?].
abstract: In two 3-year-old infants, a girl and a boy, systemic juvenile idiopathic arthritis was suspected because of daily fever peaks, signs of polyarthritis and general malaise. Drug treatment was unsuccessful, and after extensive laboratory investigation acute lymphoblastic leukaemia (ALL) was diagnosed and treated adequately. ALL is the most common malignancy in childhood. About one-third of the patients present with joint or bone pain and fever. In this group of children, it can be difficult to identify ALL because it may mimic the clinical picture of systemic juvenile idiopathic arthritis and because of the possibility of a normal blood count at presentation. ALL should always be considered in the differential diagnosis in children with musculoskeletal pain and fever, even in the face of a normal blood count. In any case, a bone-marrow examination should be done before steroid treatment is given.
authors.affiliation: Afd. Hematologie en Oncologie, Universitair Medisch Centrum, locatie Wilhelmina Kinderziekenhuis, Postbus 85.090, 3508 AB Utrecht. e.c.roks@wkz.azu.nl
authors.forename: A H
authors.initials: AH
authors.lastname: Koolman
authors.forename: S S M
authors.initials: SS
authors.lastname: Kamphuis
authors.forename: N M
authors.initials: NM
authors.lastname: Weggelaar
authors.forename: C
authors.initials: C
authors.lastname: van den Bos
authors.forename: N M
authors.initials: NM
authors.lastname: Wulffraat
authors.forename: T
authors.initials: T
authors.lastname: Révész
mesh_terms: D018771:Arthralgia; D001171:Arthritis, Juvenile / Q000175:diagnosis*; D001772:Blood Cell Count; D001856:Bone Marrow Examination; D002675:Child, Preschool; D003937:Diagnosis, Differential; D005260:Female; D005334:Fever; D006801:Humans; D008297:Male; D054198:Precursor Cell Lymphoblastic Leukemia-Lymphoma / Q000175:diagnosis*; D013256:Steroids / Q000627:therapeutic use
chemical_list: D013256:Steroids