PMC9746242_01
Renal biopsy. A: Periodic acid-Schiff stain (x 100) - 2 sclerotic glomeruli, 1 with nodular matrix expansion, arterioles with exuberant hyalinosis of the wall; B: Silver stain (x 400) - Matrix nodular expansion, slight dilation of the capillary walls (microaneurysms), a sign of mesangiolysis.
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Figure1
Glomerular hyalinosis, mesangiolysis, and microaneurysms may be also observed (Figure 1). 