Urinary TWEAK Level as a Marker of Lupus Nephritis Activity in 46 Cases

Figure 1

Features of the histopathology of active lupus nephritis. (a) Glomerular mesangial cells proliferation accompanied with cellular crescents (arrow showed). (HE staining, ×200). (b) Subepithelial immune deposits to form a “platinum ear” (arrow showed). (PASM staining, ×200). (c) Immune deposits in basement membrane. The “spikes bristle” can be observed in basement membrane (arrow showed). (PASM staining, ×1000). (d) Renal tubular epithelial cells shed accompanied with interstitial inflammatory infiltration (arrow showed). (HE staining, ×400). (e) Normal glomerulus without mesangial cells proliferation. (PAS staining, ×200). (f) Normal glomerulus without thick basement membrane. (PASM staining, ×1000).