Figure 2

Representative images of the renal biopsy histopathology of patients with IgA+ at pathological stage II-III. (a) H&E staining (200x). (b) PAS staining (200x). (c) PASM staining (200x). (d) Masson staining (200x). (e and f). Electron microscopy. (g) Immunofluorescence staining for IgG (200x). (h) Immunofluorescence staining for C3 (200x). (i) Immunofluorescence staining for IgA (200x).