A Case of Eosinophilic Granulomatosis with Polyangiitis Complicated with A IgG4 Related Disease Like Symptoms

Figure 2

Histopathologic and immunohistochemical findings of right upper eyelid. (a) Histopathologic findings of right upper eyelid included lymphoplasmic infiltration with lymphoid follicles formation consistent with sclerosing inflammation (H & E, x100). (b) Immunostaining identified IgG-positive plasma cells in lymphoid follicle (immunostaining, x200). (c) Immunostaining identified numerous IgG4-positive plasma cells, accounting for 50% of IgG-positive plasma cells (immunostaining, x200).

(a) H.E. x100

(b) IgG x200

(c) IgG4 x200