Early Graft Loss after Kidney Transplantation: Endothelial Dysfunction of Renal Microvasculature

Figure 2

Ultrastructure of average preimplantation kidney biopsy from deceased donor. (a) Normal endothelial cell with fenestrated endothelium covers glomerular capillary lumen. Cytoplasmic membrane of the endothelial cell forms scattered endothelial projections (microvilli). (b) The normal endothelial cells in arteriole. Beneath endothelial cells, there is transmural hyalinosis indicating arterial hypertensive disease in the donor. (c) Normal endothelium in peritubular capillaries. (d) Slightly attenuated but preserved tubular epithelial cells with desmosomes. Apical brush border is slightly thinner.

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