Normal retrograde pyelography of a native and transplant kidney


Retrograde pyelography is rarely used as a first line study for evaluation of the urinary collecting system. Usually CTU or ultrasound is pursued first.

Retrograde pyelography can be especially useful to evaluate renal transplant ureters since these are likely to be poorly imaged on CTU and since it can avoid an intravenous contrast dose with possible deleterious effects on poor renal function.