PMC7543098_01
(A) Periodic acid-Schiff (PAS) stain showing epithelial proliferation and
compression of the glomerulus. (B) Hematoxylin and eosin (H&E)-stained
section showing dilated tubules with flattened epithelial cells; and cells
and debris within tubular lumena. (C) H&E-stained section showing
intraepithelial neutrophils. (D) H&E-stained section photographed with
polarized light showing crystalline material within tubules.
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PMC7543098_01_10.1177_2324709620963635-fig1.jpg
fig1-2324709620963635
Renal biopsy had 6 glomeruli available, 3 were globally sclerosed and 1 of the remaining glomeruli showed epithelial hyperplasia, foam cells, and compression of glomerular capillaries (Figure 1A). There was flattening of tubular epithelial cells with debris and cells within tubular lumena (Figure 1B). Occasional tubules showed neutrophils infiltrating among tubular epithelial cells (Figure 1C). There was widely distributed polarizable material within tubular lumens (Figure 1D).