Can post strep agn that resolves 1wk after tx cause focal segmental glomerulosclerosis?im sorry for asking again. please help.

Kidney disease: Fsg can be primary (generally, idiopathic) or secondary. Most cases of secondary fsg are related to vasculitis, lupus, IgA nephropathy. Post strep agn (psagn) does not generally cause fsg. However, often, cases of IgA nephropathy may be misdiagnosed as psgn. An easy way to differentiate the 2, is to obtain a complement C3 level. In psagn (acute stage), it should be low.