Fig. 3

Electron microscopy images of the patient's renal needle biopsy. A The black arrow shows renal tubular epithelial cell edema and interstitial fibroproliferation. B The black arrow shows extensive podocyte fusion, and the white arrow shows thickening of the capillary basement membrane and endothelial loosening. C The black arrow shows the disappearance of epithelial podocytes from the visceral layer, and the white arrow shows necrotic endothelial cells and the deposition of particles