70-year-old female with acute kidney injury (AKI) and no clear etiology. RIGHT KIDNEY: The right kidney measures 10.5 cm in length. Hyperechoic parenchymal echogenicity. No hydronephrosis, shadowing calculi, or suspicious masses. There are scattered anechoic cortical cysts, which measure up to 2.1 x 2.1 x 2.3 cm. No significant interval change is noted.LEFT KIDNEY: The left kidney measures 10.9 cm in length. Hyperechoic renal parenchyma is again noted. There is a stable parapelvic cyst of the left lower renal pole measuring 2 x 2.3 x 1.8 cm. No hydronephrosis, shadowing calculi, or suspicious masses. No significant interval change is identified.URINARY BLADDER: The urinary bladder is collapsed and not visualized.OTHER: No significant abnormalities noted.
1. Echogenic renal parenchyma compatible with medical renal disease.2. No hydronephrosis.3. Stable bilateral renal cysts.