<prompt> Loss of foot processes seen on electron microscopy of renal biopsy is a classical feature in which of the following?Membranous nephropathyMinimal change diseaselgA nephropathyRapidly progressive gloerulonephritis  <response>: IgA nephropathy - Mesangial IgA deposits RPGN - Findings depend on the type of RPGN and cause. Membranous nephropathy - Subepithelial deposits Spike and dome appearance Minimal change disease MCD: Effacement of foot processes of podocytes and damage to podocytes seen on electron microscopy Most common cause of nephrotic syndrome in children is MCD and in adults, it is FSGS. 