Arthritis and rheumatism
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Arthritis and rheumatism · Nov 2009
Review Multicenter StudyMacrophage activation syndrome in juvenile systemic lupus erythematosus: a multinational multicenter study of thirty-eight patients.
To describe the clinical and laboratory features of macrophage activation syndrome as a complication of juvenile systemic lupus erythematosus (SLE). ⋯ Our findings indicate that the occurrence of unexplained fever and cytopenia, when associated with hyperferritinemia, in a patient with juvenile SLE should raise the suspicion of macrophage activation syndrome. We propose preliminary guidelines for this syndrome in juvenile SLE to facilitate timely diagnosis and correct classification of patients.