
doi: 10.1002/pbc.21019
pmid: 16900487
AbstractMacrophage activation syndrome (MAS) is a severe, potentially fatal complication of childhood rheumatic diseases, especially systemic onset juvenile idiopathic arthritis (SoJIA). We report a 4‐year‐old girl with probable SoJIA who presented with MAS. She did not respond to pulse methyl prednisolone and Cyclosporine A (CsA). She also failed to respond to intravenous immunoglobulin (IVIG) therapy. Etanercept was started, based on the observation of increased serum levels of tumor necrosis factor‐alpha (TNF‐α) in patients with MAS. Her condition improved following etanercept, suggesting that etanercept might have a therapeutic role in resistant MAS. Pediatr Blood Cancer 2008;50:419–421. © 2006 Wiley‐Liss, Inc.
Child, Preschool, Immunoglobulin G, Humans, Female, Macrophage Activation, Lymphohistiocytosis, Hemophagocytic, Receptors, Tumor Necrosis Factor, Etanercept
Child, Preschool, Immunoglobulin G, Humans, Female, Macrophage Activation, Lymphohistiocytosis, Hemophagocytic, Receptors, Tumor Necrosis Factor, Etanercept
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