Ureteric Obstruction in Stented Renal Transplants

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Abstract
The use of renal stents in renal transplants is becoming increasingly popular and has been routine practice at this institution for the past 4 years. Despite this procedure, however, obstruction of the transplant ureter still occurs and we describe 7 patients who developed renal obstruction in the presence of a stented transplant ureter. The underlying causes of these findings are discussed together with suggested recommendations for optimum radiological assessment of transplant ureteric stents. The implications of these observations is that urine may flow down stented ureters between the ureter and the stent rather than down the stent lumen.