Point of care renal ultrasonography for the busy nephrologist: A pictorial review

Figure 15 Renal sonogram demonstrating a large simple cyst in the lower pole of the right kidney. A: Arrow points to echogenic far wall and the contained area posterior to the cyst represents acoustic enhancement; B: Example of a complex cyst with septations (arrow). The image shows both acoustic enhancement from the cyst (contained area with yellow outline) and acoustic shadowing (asterisks) from calcifications in the septa (circle).