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Figure 1: Light and immunofluorescent microscope findings of SLE that has nephritis with mainly IgA deposits. (a1), (a2), (a3), (a4), and (a5), respectively, indicate PASM staining of cases 1~5 under light microscope (×400). (b1), (b2), (b3), (b4), and (b5), respectively, indicate MASSON staining of cases 1~5 under light microscope (×400). Hyperplasia of glomerular mesangium and matrix can be seen in all cases. In addition, case 2 has clear glomerular sclerosis. (c1), (c2), (c3), (c4), and (c5), respectively, indicate IgA deposits of cases 1~5 under immunofluorescence microscope and all cases are positive (++~+++).