CT
Heterogenous soft tissue mass involving the left renal pelvis and encircling the proximal 1/2 segment of the left ureter. There is infiltration of the perirenal fat and a lower calyceal stone. The renal vein is not involved. Both ureters are seen implanted into new bladder.
Right renal cyst is noted. Multiple hypodense hepatic focal lesions, most of which are metastatic.