“…Such therapy may exclude surgery provided biopsies are not needed or if the patient is in a high operative risk category [Ochsner et al, 1975;Mitchinson, 1972;Morandi and Grob, 1971;Wagenknecht and Hardy, 1981;Hollingworth et al, 1980], The value of corticosteroids in the postoperative period is still debated. Wagenknecht and Hardy [1981] state that without additional corticosteroid application, ureteral stenosis occurred 5 times more often than with steroids, whereas Kinder [1979] is of the opinion that recurrence after ureterolysis is the result of inadequate surgery and should not occur.…”