Fig. 3From: Successful treatment of highly advanced immunoglobulin G4-related kidney disease presenting renal mass-like regions with end-stage kidney failure: a case studyPathological findings. (a) Tubulointerstitial nephritis and minor glomerular abnormality shown by PAS stain, (b) Bird’s eye pattern fibrosis shown by PAM stain and (c) IgG4 positive cell:40/HPF shown by Immunostaining for IgG4Back to article page