Fig. 1

Light microscopy Olympus BX53, OLYMPUS DP73 camera, and cellSense (Olympus Corporation, Center Valley, PA, USA) wass used to capture the images. The images were obtained with eyepiece at 10X magnification and objective at 20X and 40X. No enhancement of the images was performed. The measured resolution was 4800 × 3600. a Histological findings show minor glomerular abnormalities (periodic acid–Schiff, 400 ×). b There is cast and hemosiderin deposition in the tubules (periodic acid–Schiff, 400 ×). c There are no significant findings in the immunofluorescence analysis. d Massive hemosiderin deposition detected in the proximal tubules by Berlin blue iron staining (200 ×). e Electron dense deposits was not detected by electron microscopy; however, lysosomes incorporated with iron granules are observed in the proximal tubules