Fig. 11

11-month-old boy with right Wim’s tumor and foci of nephrogenic rests on the left side. a Preoperative post-contrast Fat Sat. T1WI shows a large heterogeneously enhancing renal tumor on the right side (asterisk). The nephrogenic rest on the left side is hypo-enhancing compared to renal tissue (arrow) b, c ADC and DWI, respectively, showing the Wilms tumor (asterisk) and nephrogenic rests (arrow) exhibiting diffusion restriction. d Follow up CT ten months after surgery showing stationary appearance of the nephrogenic rest (arrow)