Membranous nephropathy with systemic light-chain amyloidosis of remission after rituximab therapy: A case report

Figure 1 Light microscope images of kidney biopsy. A: Thickened glomerular basement membrane (PASM stain, 400×); B: Interstitial renal fibrosis (Masson, 400×); C: Positivetive Congo red staining in the glomerular mesangial area (Congo red stain, 400×); D: Positivetive Congo red staining in the renal interstitium (Congo red stain, 400×).

Figure 2 The trends in urinary proteinuria and glomerular filtration rate levels during the patient’s follow-up. A: Changes in urinary proteinuria levels during follow-up; B: Changes in estimated glomerular filtration rate levels during follow-up.