PMC9085326_01
Renal allograft biopsy. (a) 40x hematoxylin and eosin (HE) stains with no apparent IF/TA, (b) 100x HE, (c) Periodic acid-Schiff (PAS) stain, (d) Masson trichrome stain, and (e) Methenamine silver stain. All (c)-(e) reveal thickened glomerular basement membrane and spikes. Immunohistochemistry (IHC) shows a granular IgG deposit (f), and it is negative for C4d, SV40, and PLA2R antigen.
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