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New Onset Autoimmune Disease or Macrophage Activation Syndrome?
Abstract:
Macrophage activation syndrome (MAS) is a potentially life-threatening condition that may complicate many pediatric rheumatologic diseases. Because of its similarity in presentation to other conditions with overlapping manifestations, such as flares of rheumatologic disease or systemic infection, and the fact that there exists no single pathognomonic clinical finding or laboratory parameter to aid in diagnosis, MAS presents a significant diagnostic challenge to the practicing pediatrician with limited access to consulting pediatric rheumatologists. Along with a review of the physiology and manifestations of the condition, we have included the most current consensus for diagnosing MAS. [Pediatr Ann. 2019;48(10):e395-e399.].
Insights
Macrophage activation syndrome (MAS) is a dangerous complication of pediatric rheumatologic diseases. Early diagnosis is challenging due to overlapping symptoms, but current consensus guidelines aid pediatricians.
Area of Science:
- Pediatric Rheumatology
- Immunology
- Critical Care Medicine
Background:
- Macrophage activation syndrome (MAS) is a severe, life-threatening hyperinflammation.
- It complicates various pediatric rheumatologic conditions.
- Accurate diagnosis is often delayed due to overlapping symptoms with disease flares or infections.
Observation:
- MAS diagnosis is challenging for pediatricians, especially those without easy access to pediatric rheumatology specialists.
- No single clinical or laboratory finding definitively identifies MAS.
- Overlapping manifestations with rheumatologic flares and systemic infections complicate differential diagnosis.
Findings:
- This review covers the physiology and clinical manifestations of MAS.
- It presents the most current consensus guidelines for diagnosing MAS.
- Understanding these guidelines is crucial for timely identification.
Implications:
- Improved diagnostic accuracy for MAS in pediatric patients.
- Facilitates earlier intervention and management of this critical condition.
- Supports pediatricians in recognizing and managing MAS, even with limited specialist access.
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