Figure 8.

MRI and diffusion-weighted imaging (DWI). A: Axial T2-weighted image shows the presence of septa and solid contents on the anterior wall of the lesion (arrow). B,C: DWI and ADC mapping of the same lesion shows areas of water motion restriction identified as foci of high signal intensity at DWI and low signal on the ADC map (arrows). Note the significant difference favoring MRI in the characterization of complex cysts content. Clear cell renal cystic carcinoma was confirmed after resection