Fig. 1
From: Late antibody-mediated rejection in a kidney transplant recipient: COVID 19 induced?
Biopsy findings. Light microscopy showing (A) no significant interstitial inflammation (i0) (hematoxylin and eosin – HE, × 4 magnification). Higher magnification displaying (B, C, D) glomerulitis (white asterisk, HE, PAS, Trichrome, × 40 magnification), (E) peri-hilar focal segmental glomerulosclerosis (black asterisk, HE, × 40 magnification), (F) moderate peritubular capillaritis (black arrows, HE, × 40 magnification), (G) segmental mesangiolysis (white arrow, Jones, × 40 magnification), (H, I, J) a thrombotic microangiopathy (TMA) affecting a glomerulus with fragmented red blood cells (white arrowhead, HE, × 40 and × 100 magnification) and glomerular basement membrane remodeling with double contours and mild endothelial swelling (Jones, × 100 magnification), (K, L, M) TMA affecting a small arteriole with endothelial swelling in the lumen (black arrowhead, HE, Jones, Trichrome, × 40 and × 100 magnification)