Ureteral obstruction owing to endometriosis: reversal with synthetic progestin.

A case of unilateral ureteral obstruction owing to extensive pelvic endometriosis is presented. There was complete resolution of ureteral obstruction following treatment with synthetic progestin. Sequential assessment of renal function was provided by renal imaging and renograms. It would appear that selected patients with obstructive uropathy may respond favorably to medical management, which would allow for preservation of reproductive capabilities and restoration of renal excretory function.