Figure 1 a–d.

Four glomeruli displaying global mesangial sclerosis with variably increased mesangial cells, obliteration of capillary lumen, and patent bowmans’ space (black arrows, a). Crowning of podocytes is noted (green arrow, b). Few capillaries had patent lumen with slightly thickened basement membranes (yellow star, a and d). Tubules are dilated and contain Tamm–Horsfall protein casts. Interstitial space reveals lymphomononuclear infiltrates (a-H and E ×20, b-PAS, c-Masson Trichrome, d- PASM stain)