Fig. 2. Histopathological findings of kidney biopsy. (A) No tubular injury and tubular atrophy/interstitial fibrosis (periodic acid-Schiff; original magnification ×40). (B) Normal appearance glomeruli (periodic acid-Schiff; original magnification ×200). (C) Normal glomerular basement membrane without deposits (periodic acid-methenamine silver; original magnification ×400). (D) Protein reabsorption droplet accumulation in proximal tubules, which indicates heavy protein leakage across the glomerular filter and increased reabsorption of protein (periodic acid-Schiff; original magnification ×400). (E) Diffuse effacement of the podocyte foot processes and microvilli formation (electron microscopy; original magnification ×5,000).
