
IgG4-Related Disease
ACR on Air
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Understanding the Broad Range of Conditions with Elevated IgG4 Levels
This chapter discusses the various conditions that can cause elevated IgG4 levels in patients, emphasizing that not all cases result in IgG4 related disease. It also compares the significance of IgG4 levels to rheumatoid factor in rheumatoid arthritis diagnosis. The chapter concludes by highlighting the need for more information about the patients.
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