Fig. 5From: IgG4-related mastitis characterized by skin thickening of the breast: a case reportHistological findings of the biopsy specimen of the breast. Histological findings of the biopsy specimen are shown. A Hematoxylin and eosin staining revealed a marked lymphocyte infiltration surrounding the mammary ducts. B IgG4 and C IgG staining show marked infiltration of IgG4-positive plasma cellsBack to article page