fig6
From: Imaging
![Imaging](https://image.oaes.cc/35d85479-e840-4c64-a9f0-f60167d3dd1e/3202.fig.6.jpg)
Figure 6. Simple cyst. A: Greyscale sonograms of the left kidney shows hypoechoic round lesion with smooth margins without perceptible wall; B: Tissue harmonic imaging may be useful to show better the posterior acoustic