Figure 1.

Renal biopsy:(a)interlobular artery with pale mucoid intimal hyperplasia (arrow) leading to severe reduction of the vessel lumen and ischemic glomerular collapse (black star); Masson’s trichrome, original magnification ×100. (b) Arterial occlusion with fibrin deposition (arrows) and ischemic glomeruli (black star); Masson’s trichrome, original magnification ×100. (c) Arteriolar thrombosis (arrows); hematein eosin saffron; original magnification ×400. Bars = 100 μm. To optimize viewing of this image, please see the online version of this article at www.kidney-international.org.