Urine sediment showing multiple, muddy brown granular casts. These findings are highly suggestive of acute tubular necrosis in a patient with Acute kidney injury (Acute renal failure).
muddy brown granular casts
muddy casts
1: Muddy brown cast (dirty brown hemoglobinuric pigment) 2: Waxy cast 3: Necrotic RTC cells 4: RTC-hyaline cast