Figure 2
From: Pathologic manifestations of levamisole-adulterated cocaine exposure
Kidney biopsy from a patient with exposure to levamisole-adulterated cocaine. A) Necrotizing lesion characterized by the presence of fibrin (arrow) within the Bowman space with associated nuclear debris and incipient cellular crescent (hematoxylin and eosin stain, 400X). B) Cellular crescent with fibrin (arrow) within the Bowman space (methenamine silver-Periodic acid-Schiff stain, 400X). Note that the glomerular tuft is otherwise relatively normal, as is often seen in pauci-immune glomerulonephritis.