PMC5255993_01
(a) The glomerular enlargement with mesangial expansion with the formation of nodules. The nodules were (b) positive for silver stains (c) negative with Periodic Acid Schiff stain and (d) collagen deposition with Masson trichrome stain
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F1
The renal biopsy [Figure 1] showed 15 glomeruli, two of whom were sclerosed.
The electron microscopic study of renal biopsy specimen fixed using glutaraldehyde shows the presence of subendothelial deposits of large fibers which are curvilinear and with disorganized arrangement suggestive of collagen fibers; confirming the diagnosis of collagenous glomerulopathy
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PMC5255993_01_IJN-27-62-g002.jpg
F2
Electron microscopy [Figure 2] showed markedly enlarged glomerulus with lobular arrangement and diffuse foot process effacement.