Fig. 2From: Renal hemosiderosis presenting with acute kidney Injury and macroscopic hematuria in Immunoglobulin A nephropathy: a case reportPerls’ Prussian blue staining. The first kidney biopsy performed 6 years ago was negative for Perls’ Prussian blue staining (a: ×100, b: ×1000). However, the second kidney biopsy, which was performed for the purposes of this work, showed diffuse hemosiderin deposits in the proximal tubular epithelial cells (c: ×100, d: ×1000) Back to article page