Fig. 1From: Noninfectious mixed cryoglobulinaemic glomerulonephritis and monoclonal gammopathy of undetermined significance: a coincidental association?Histology. Light microscopy in patient 1 with a periodic acid-Schiff (PAS) stain and b silver stain showing MPGN with double contours and striking intraluminal, PAS-positive pseudothrombi. Equal (+++) intensity of paraffin-IF staining of pseudothrombi for c κ and d λ light chain. In patient 2, e silver stain showing a small cellular crescent with necrosis, and f haematoxylin and eosin stain of a small artery with concentric intimal arteritis. Magnification ×40Back to article page