This patient presented with loin-to-groin pain on the right with a trace of blood in the urine.
This Kidneys/Ureters/Bladder (KUB) control image for an Intravenous Urogram (IVU) shows a calcified focus in the pelvis which is a possible cause of ureteric obstruction.
Following intravenous injection of contrast material, the left kidney shows normal excretion with contrast clearing normally from the ureter into the bladder.
On the right the collecting system is dilated.
Dilated calyces can be referred to as 'clubbed'.
The focus of calcification seen on the control KUB image is confirmed as the cause of ureteric obstruction.