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Figure 3: (a) Focal segmental glomerulosclerosis (FSGS), light microscopic examination showing collapse of capillaries together with mesangial matrix expansion (masson trichrome staining, original magnification, ×400). (b) Staining for vimentin, using an anti-vimentin antibody, showing an increase in interstitium of a case with FSGS (original magnification, ×400). (c) Immunostaining for vimentin showing positivity in tubular epithelial cells of a patient with FSGS (original magnification, ×400). (d) Positive α SMA immunostaining in mesangial and epithelial cells of a FSGS glomeruli (original magnification, ×400)

Figure 3: (a) Focal segmental glomerulosclerosis (FSGS), light microscopic examination showing collapse of capillaries together with mesangial matrix expansion (masson trichrome staining, original magnification, ×400). (b) Staining for vimentin, using an anti-vimentin antibody, showing an increase in interstitium of a case with FSGS (original magnification, ×400). (c) Immunostaining for vimentin showing positivity in tubular epithelial cells of a patient with FSGS (original magnification, ×400). (d) Positive α SMA immunostaining in mesangial and epithelial cells of a FSGS glomeruli (original magnification, ×400)