Enlarged left kidney with moderate hydronephrosis with dilatation of the ureter up to the L3-L4 level where there is a stone (measuring 20 x 10 mm, mean density = 1320 HU), obstructing the ureteral lumen. Delayed cortical nephrogram well-visualised on excretory phase.
Normal appearance of the right kidney with no renal or ureteral stone. Absent cortical nephrogram on excretory phase.
Normal urinary bladder.