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)
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