Fig. 3

Representative immunohistochemistry findings of renal biopsy at first diagnosis. a. Mild staining of immunoglobulin lightκin the interstitium (Immunofluorescence staining,× 200). b. Moderate to strong staining of immunoglobulin lightλin the interstitium (Immunofluorescence staining,× 200). c. Scattered immunoglobulin lightκwere detected in the plasmacytoid cells. (Immunoelectron microscopy labelling, × 25,000). d. Intense immunoglobulin lightλwere detected in the plasmacytoid cells. (Immunoelectron microscopy labelling, × 25,000)