Figure 1.
Interstitial fibrosis/tubular atrophy. (A) Histological changes of renal allograft tissue with chronic active antibody-mediated rejection (hematoxylin and eosin staining; original magnification, ×100). (B) C4d diffuse staining in glomerular and peritubular capillaries (EnVision assay; original magnification, ×200).