After 96 hours of exposure, shrunken of glomerulus and
nephritic changes were seen, Bowman’s capsules were
dilated. Vacuolar degeneration (cloudy swelling) in the
epithelium of renal tubules and dilation in the capillary tubes
of renal tubules were observed. Also edema in Bowman’s
capsules with atrophy in the glomeruli and dilation in renal
blood vessels were observed (Fig. 5).