Fig. 1From: Clinical improvement of renal amyloidosis in a patient with systemic-onset juvenile idiopathic arthritis who received tocilizumab treatment: a case report and literature reviewDepositions of amorphous eosinophilic material (arrow) in the (a) glomerular hilum and (b) arteriolar wall (×400, periodic acid–Schiff). Positive Congo red staining in the (c) mesangium and (d) arteriolar wall and interstitium (×400, Congo red)Back to article page