Nickan Research Institute Journal of Renal Injury Prevention 2345-2781 2 4 2013 12 01 C1q nephropathy- unity in diversity 117 118 10.12861/jrip.2013.37 EN Pavan Malleshappa EDITORIAL 10.12861/jrip.2013.37 Implication for health policy/practice/research/medical educationC1q nephropathy refers to a disorder in which C1q deposits are seen in mesangium on immunofluorescence microscopy and mesangial electron dense deposits on electron microscopy. The diagnosis of C1q nephropathy is based on demonstration of intense C1q (dominant or co-dominant) positivity, mainly in the mesangium on immunofluorescence microscopy. Electron dense deposits of C1q in C1q nephropathy are confirmatory of the diagnostic entity.