<prompt> Which of the following renal pathology is present in a child who developed nephrotic syndrome after hepatitis B infection?Focal segmental glomerulosclerosisMembranous nephropathyIgA nephropathyMembranoproliferative glomerulonephritis  <response>: - Membranous nephropathy: Deposition of immune complexes on the GBM with thickening of GBM. In children it is a rare cause of nephrotic syndrome. Classified as: Idiopathic and secondary MC etiologies of secondary form are: Chronic infections- hepatitis B infection Drugs penicillamine, NSAIDs , gold Parasitic diseases eg, malaria, schistosomiasis, leishmaniasis SLE CF: Pt. typically presents with edema and nephrotic-range proteinuria and microscopic hematuria and hypeension. 