Red blood cell casts
Glomerulonephritis
Renal ischaemia and infarction
White blood cell casts
Acute pyelonephritis
Interstitial nephritis
Granular (‘muddy-brown’) casts
Acute tubular necrosis
Hyaline casts
Common and non-specific
May be seen following exercise or dehydration
Epithelial casts
Acute tubular necrosis
Waxy casts
Advanced chronic kidney disease
Fatty casts
Nephrotic syndrome