CD40LG and primary membranoproliferative glomerulonephritis: Additionally, in the report by Ni H-F et al. [25], epimembranous IgM deposits were documented, whereas those described by Dong et al. [6] presented a histopathologic pattern of MPGN with Igs in the glomerular capillary loops and mesangial areas, so the presence of deposits on immunofluorescence is to be expected.