Autoimmune pancreatitis patient with IgG4 immunostaining
Autoimmune pancreatitis patient with IgG4 immunostaining
Histologic findings for the pancreas in an autoimmune pancreatitis patient showing (A) dense lymphoplasmacytic infiltration and storiform fibrosis (HE staining) and (B) abundant infiltration of IgG4-positive plasma cells (IgG4 immunostaining).
HE: hematoxylin and eosin; IgG4: immunoglobulin G4.