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Fig. 1 | BMC Nephrology

Fig. 1

From: IgA nephropathy relapse following COVID-19 vaccination treated with corticosteroid therapy: case report

Fig. 1

Histopathologic findings from renal biopsy. a Light microscopy shows no mesangial or endocapillary hypercellularity, or crescents. Fibrous adhesion to the Bowman capsule is identified focally (black arrow). There is mild interstitial fibrosis and tubular atrophy (original magnification × 10). b Immunofluorescence analysis demonstrates weak IgA staining in mesangium (original magnification × 20). c Immunofluorescence analysis demonstrates negative IgG staining in mesangium (original magnification × 20). d Electron microscopy reveals a small number of mesangial electron-dense deposits, especially underneath paramesangial basement membranes (white arrow). Bar = 1 μm

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