Recurrent macrophage activation syndrome as the initial manifestation of paediatric systemic lupus erythematosus.

Introduction: Macrophage Activation Syndrome (MAS) is a rare but potentially fatal complication in rheumatic diseases. Here, we report the case of a 14-year-old girl with MAS as the primary manifestation of Systemic Lupus Erythematosus (SLE). She had three episodes of MAS during the course of her treatment. This case is unique as recurrent MAS in pediatric SLE is rare. Methods: Demographic, clinical, laboratory features and outcomes of our patient was noted. We also reviewed the two reported cases of recurrent MAS in pediatric SLE. Literature review was performed on PubMed search forum. Search items included Macrophage activation syndrome, pediatric systemic lupus erythematosus, recurrent MAS. Conclusion: The diagnosis and management of MAS are challenging as it can simulate an infectious complication or can be the exacerbation of the underlying disease. Early detection and prompt treatment can reduce morbidity in these patients.