PMC9249512_01
Light microscopy showing a glomerulus with focal segmental fibrinoid necrosis.
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There was moderate interstitial fibrosis, tubular atrophy with focal segmental fibrinoid necrosis (Figure 1).
Light microscopy showing diffuse cellular crescent formation.
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Light microscopy revealed 50% of sampled glomeruli had active cellular crescents (Figure 2).
Immunofluorescence stained for IgA.
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Immunofluorescence revealed granular capillary wall and mesangial staining for IgA (3+) and IgG (3+) (Figures 3 and 4).
Immunofluorescence stained for IgG.
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fig4
Immunofluorescence revealed granular capillary wall and mesangial staining for IgA (3+) and IgG (3+) (Figures 3 and 4).