Ultrasound examination of the kidneys was performed with multiple static images obtained. The right kidney measures 10.2 cm in length. It maintains normal cortical thickness and echogenicity. In the superior pole there is a simple cyst measuring 0.6 x 0.4 x 0.5 cm. There is no hydronephrosis, nephrolithiasis or perinephric fluid collections. The left kidney measures 10.5 cm in length. It maintains normal cortical thickness and echogenicity. In the superior pole there is also suggestion of a cyst measuring 1.4 x 1.1 x 1.3 cm without color flow. There is question of some internal echoes in this cyst. Follow-up ultrasound exam in 6 months is recommended to ensure stability. Further characterization could also be obtained with dedicated MRI of the kidneys. There is no hydronephrosis, nephrolithiasis or perinephric fluid collections.