The Sensitivity and Specificity of Serum Immunoglobulin G and Immunoglobulin G4 Levels in the Diagnosis of Autoimmune Chronic Pancreatitis

Abstract

The sensitivity of serum IgG4 tended to be higher than that of IgG in the diagnosis of AIP. The IgG4 showed high specificity in the differential diagnosis of AIP from pancreatic cancer. Serum IgG4 should be included in the diagnostic workup for AIP.