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The biopsy shows a recurrent membranous nephropathy within a transplant. Figure 1 shows "spikes" and "holes." Figure 2 shows mild interstitial fibrosis. Figures 3, 4, 5, and 6 shows IgG, kappa, lambda, and PLA2r, respectively. Figure 7 shows subepithelial and intramembranous deposits. Membranous nephropathy can arise in the graft from recurrence of the original disease, a de novo disease, and rarely as a donor-derived disease. Recurrence of the original disease can be seen as early as one week post transplant. Most cases of recurrent membranous nephropathy occur within the first few months following transplantation, whereas de novo membranous nephropathy usually...