CT images. (A) Axial contrast-enhanced nephrographic-phase CT image obtained at level of renal hilum shows an ill-defined, heterogeneous mass with central cystic change involving the parenchyma of the right kidney, with extension into the renal pelvis and right vein. (B) Reconstructed coronal contrast-enhanced CT image obtained during the excretory phase shows the compression and distortion of the renal pelvis.
Xu et al. Diagnostic Pathology 2013 8:119 doi:10.1186/1746-1596-8-119