Tc-99m DMSA showed poor functioning/non-functioning right kidney and good functioning left kidney with no evidence of cortical scar.

Three right renal masses with one of them involving the renal collecting system and ureter, associated with poor contrast excretion. No invasion of renal vessels or IVC is seen. Possible differentials include transitional cell carcinoma (TCC), renal cell carcinoma (RCC) and renal lymphoma, the latter proven after radical nephroureterectomy.