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. 2010 May;5(5):790–797. doi: 10.2215/CJN.04120609

Table 3.

Histologic features in biopsies from patients with recurrent iMN

Patient Days after Tx Indication for Biopsy UP GD Light Microscopy
IF
Electron Microscopy
Stage
Glomeruli Spikes Deposits F/TA (%) IgG C3 IgA IgM C1q SEDD FPF/FPE (%) TRI
1 6 Protocola Neg No 17 No Yes 0 2+ 1+ 0 0 0 1+ 40 0 1
2 13 GD <0.5 Yes 3 No No 0 1 to 2+ 0 0 0 0 1+ 95 0 1
3 11 GD 2+ Yes 18 No No 0 2 to 3+ 0 to 1+ 0 0 0 ND ND ND 1
4 19 GD 3+ Yes 13 No Yes 15 1+ 1+ 0 1+ 0 ND ND ND 1
5 19 GD 380 mg Yes 17 No No <5 2+ 0 0 0 0 ND ND ND 1
6 53 GD 2+ Yes 24 No No <5 3+ 0+ 0 0 0 ND ND ND 1
7 104 GD Trace Yes 5 Yes No 50 2 to 3+ 0 to 1+ 0 0 0 3+ 90 0 1
8 414 GD/NRP NRP Yes 12 Yes Yes 15 3+ 1+ 0 0 0 ND ND ND 2
9 599 GD/NRP NRP Yes 12 No Yes <5 3+ 1+ 0 0 0 1+ 100 0 1
10 674 NRP NRP No 5 Yes Yes ND 3+ 1+ 0 0 0 2+ 100 0 2
11 721 GD/NRP NRP Yes 9 Yes Yes 20 3+ 1 to 2+ 0 0 0 ND ND ND 2
12 963 NRP NRP No 35 Yes No 15 2 to 3+ 1+ 0 0 0 1 to 2+ 95 0 2
13b 1203 NRP NRP No 14 Yes Yes 15 0 0 0 0 to 1+ 0 1 30 0 2
14 3545 NRP NRP No 14 No Yes 15 3+ 1+ 0 0 0 1+ 90 0 2
15 5497 NRP NRP No 12 Yes Yes 10 2 to 3+ 1+ 0 0 0 1 Mild 0 2

FPF/FPE, foot process fusion/foot process effacement; F/TA, fibrosis and tubular atrophy; GD, graft dysfunction; ND, not done; NRP, nephrotic-range proteinuria; SEDD, subepithelial dense deposits; TRI, tubuloreticular inclusions; Tx, transplantation; UP, urinary protein.

a

Patient underwent ABO-incompatible renal transplantation.

b

IF negative probably because of the segmental nature of the MN in this patient, which was also noted in his native biopsy.