Bartonella-Associated Endocarditis with Severe Active Crescentic Glomerulonephritis and Acute Renal Failure

Figure 1

Kidney biopsy images. (a) Glomeruli with cellular crescents, one of which also shows segmental necrosis (arrow). Periodic-acid Schiff. (b) Strong granular mesangial staining for C3 by immunofluorescence. (c) Weak granular mesangial staining for IgG by immunofluorescence. (d) Electron microscopy showing mesangial deposits (arrows) and (e) small subendothelial deposit (arrow).

(a)

(b)

(c)

(d)

(e)