Figure 4 : (a) Renal ultrasound showing a large heterogenous mass (indicated by the cursors) with hyperechoic and hypoechoic regions.

(b) There is slightly increased vascularity on color doppler.

Omodon et al.Clinical Nephrology and Urology Science  2016 3:1DOI : 10.7243/2054-7161-3-1