Is IgG4-Related Disease a Cause of Xerostomia? A Cohort Study of 60 Patients

Figure 2

Infiltration of IgG4-positive plasma cells in LSGB of patients with SS. Sections of LSGB were immunostained with hematoxylin and eosin (H&E) and anti-IgG4 antibodies. Diaminobenzidine (in brown on the picture showed by white arrows) was used as the reagent to visualize the antigenic sites.