Two patients with invasive carcinoma of the cervix treated with radica
l hysterectomy developed total unilateral ureteric obstruction postope
ratively. A temporary percutaneous nephrostomy was inserted. Because b
oth patients needed adjuvant radiotherapy, intended reimplantation of
the meter was postponed. During this period spontaneous passage throug
h the meter was observed after 5 and 14 weeks, respectively. It is emp
hasized that a 'wait and see' policy may be justifiable in the case of
ureteric obstruction of unclear etiology after radical hysterectomy f
or at least 3 months, as long as renal function is preserved by percut
aneous nephrostomy drainage of the affected kidney side.