Computed tomography. Under the liver, a small amount of free abdominal air can be observed (yellow arrowhead). Ureteral dilation is present on the right. The late phase image shows that the contrast medium is not excreted into the right pyelon, still, nephrographic effect is visible (red arrowhead). On the left side, the kidney’s morphology is physiological, and contrast excretion is present in the ureter (green arrowhead).