Fig. 2
From: The pathological and outcome characteristics of renal lesions in Crohn’s disease
Pathologic features of IgA nephropathy associated with Crohn’s disease. A Glomeruli with mild segmental mesangial matrix expansion and mesangial hypercellularity (Periodic acid-Schiff, original magnification × 400). B Glomeruli with segmental mesangial matrix expansion, mesangial hypercellularity, and the not thickened basement membrane (Masson, original magnification × 400). C Glomeruli with massive IgA deposits in the mesangial region (Immunofluorescence, original magnification × 400). D Electron-dense deposits in the mesangial region (Arrow) (Electron microscopy, original magnification × 3000)