Untreated, progressive bilateral ureteric obstruction, or unilateral u
reteric obstruction in patients with a solitary functioning kidney, wi
ll ultimately lead to uraemia, renal failure and death. This paper des
cribes 34 successful percutaneous antegrade ureteric stent placements
from 37 attempts, performed on 25 selected patients with a history of
malignant disease, in whom retrograde ureteric stenting was impossible
or difficult.