Persistent Lymphadenopathy due to IgG4-Related Disease

Figure 3

IgG (a) and IgG4 (b) stains, 4x magnification. These stains show an IgG4+/IgG+ cell ratio estimated at 30% (black arrow head: IgG staining, solid black arrow = IgG4 staining).

(a)

(b)