Abstract Number: 1784 • 2018 ACR/ARHP Annual Meeting
Serum IgG4 Test Characteristics: Immunonephelometry Versus Liquid Chromatography Tandem Mass Spectrometry
Background/Purpose: IgG4-related disease (IgG4-RD) is a fibroinflammatory condition that may involve essentially any organ. The disease spectrum is also often associated with elevated serum IgG4,…