Abstract Number: 1274 • 2017 ACR/ARHP Annual Meeting
Anti-MDA5 Autoantibodies Associated with Juvenile Dermatomyositis Constitute a Distinct Phenotype in North America
Background/Purpose: Anti-MDA5 autoantibodies (Abs) have been associated with clinically amyopathic and classic dermatomyositis (DM), with rapidly progressive interstitial lung disease (ILD) and poor prognosis in…