Figure 1: Image findings. A: Chest computed tomography with pleural
effusions. B: Kidney biopsy under light microscopy, hematoxylin & eosin
stain, glomeruli with diffuse mesangial, and endocapillary
hypercellularity with lobulated accentuation. C: Kidney biopsy, light
microscopy, periodic acid-Schiff (PAS) stain, a glomerulus with a
fibrocellular crescent. D: Kidney biopsy, light microscopy, PAS stain,
glomerular arterioles with fibrin thrombi. E and F: Kidney biopsy,
electronic microscopy, glomeruli with subepithelial, subendothelial and
mesangial deposits. G: Kidney biopsy, IgG immunofluorescence staining
with capillary and mesangial granular deposits and a few tubular
basement membrane deposits. H: Kidney biopsy, C1q immunofluorescence
staining with capillary and mesangial granular deposits.