Histological changes included minimal to moderate renal tubular injury characterized by degeneration , yellow - brown pigmentation , dilatation , and regeneration of tubules ; yellow casts in renal tubular lumens ; minimal hyperplasia and hypertrophy of thyroid follicular epithelium ; and centrilobular hepatocellular hypertrophy .
Histological changes included minimal to moderate renal tubular injury characterized by degeneration , yellow - brown pigmentation , dilatation , and regeneration of tubules ; yellow casts in renal tubular lumens ; minimal hyperplasia and hypertrophy of thyroid follicular epithelium ; and centrilobular hepatocellular hypertrophy .
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