Microscopic finding	Pathologic process
Fatty casts, free fat or oval fat bodies	Nephrotic range proteinuria (> 3.5 g per 24 hours)
Leukocytes, leukocyte casts with bacteria	Urinary tract infection
Leukocytes, leukocyte casts without bacteria	Renal interstitial disease
Normal-shaped erythrocytes	Suggestive of lower urinary tract lesion
Dysmorphic erythrocytes	Suggestive of upper urinary tract lesion
Erythrocyte casts	Glomerular disease
Waxy, granular or cellular casts	Advanced chronic renal disease
Eosinophiluria*	Suggestive of drug-induced acute interstitial nephritis
Hyaline casts	No renal disease; present with dehydration and with diuretic therapy