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  Indian J Med Microbiol
 

Figure 1: Light microscopy images of the second kidney biopsy specimen. (a) Glomerular diffusion, severe mesangial cell proliferation, and mesangial matrix widening, with visible neutrophil infiltration in the capillary lumen, are observed (PAS, ×200) (b) Interstitial inflammatory cell infiltration is observed (PAS, ×200) (c) Basement membrane thickening and numerous double-contour formations are observed (PASM, ×200). (d) Renal tubules are slightly atrophied, and some protein casts are observed in the upper-tube lumen (PASM, ×200). PASM, periodic acid&S#8211;silver metheramine; PAS, periodic acid–Schiff

Figure 1: Light microscopy images of the second kidney biopsy specimen. (a) Glomerular diffusion, severe mesangial cell proliferation, and mesangial matrix widening, with visible neutrophil infiltration in the capillary lumen, are observed (PAS, ×200) (b) Interstitial inflammatory cell infiltration is observed (PAS, ×200) (c) Basement membrane thickening and numerous double-contour formations are observed (PASM, ×200). (d) Renal tubules are slightly atrophied, and some protein casts are observed in the upper-tube lumen (PASM, ×200). PASM, periodic acid&S#8211;silver metheramine; PAS, periodic acid–Schiff