Fig. 1From: Immunoglobulin G4-related disease presenting with peripheral neuropathy: a case reportPathologic findings. a Kidney biopsy showed inflammatory cell infiltration with storiform fibrosis (asterisk). b The inflammatory cells are predominantly plasma cells and lymphocytes. H&E statin, (A) x100, (B) x200. The immunohistochemical stain (x200) for IgG (c) and IgG4 (d) revealed numerous IgG + and IgG4 + plasma cells (brown color) and an increased ratio of IgG4+/IgG+ (64.9 %)Back to article page