Indian J Nephrol Close
 

Figure 1: (a) Expansile whorling interstitial fibrosis with dense lymphoplasmacytic infiltrate and few eosinophils. Note widening of intertubular spaces with tubular attenuation and relative sparing of glomeruli (hematoxylin and eosin, ×400). (b) Dense interstitial lymphoplasmacytic infiltrate composed of numerous immunoglobulin G4-positive plasma cells (black arrow) (anti - IgG4 immuno - histochemistry, ×400)

Figure 1: (a) Expansile whorling interstitial fibrosis with dense lymphoplasmacytic infiltrate and few eosinophils. Note widening of intertubular spaces with tubular attenuation and relative sparing of glomeruli (hematoxylin and eosin, ×400). (b) Dense interstitial lymphoplasmacytic infiltrate composed of numerous immunoglobulin G4-positive plasma cells (black arrow) (anti - IgG4 immuno - histochemistry, ×400)