<prompt> Effacement of foot process of nephron is seen in?Minimal change diseaseFocal segmental glomerulosclerosisAcute glomerulonephritisMembranous nephropathy  <response>: Minimal change renal disease is the most common form of idiopathic nephrotic syndrome in children of age group 2 to 6 years. It accounts for around 85 of cases and are mostly steroid sensitive. The finding in renal biopsy in light microscope is usually normal. Electron microscope shows effacement of epithelial foot process. Other most commonly asked question in nephrotic syndrome is the indication for renal biopsy - Age group less than 1 and more than 10 years Steroid resistant nephrotic syndrome Steroid dependent nephrotic syndrome Nephritic onset nephrotic syndrome Persistent hematuria and hypo complement levels more than 2 months Before starting cyclosporine analog drugs. 