Retroperitoneal ectatic or varicose veins may cause ureteral extrinsic pres
sure defects. Doppler sonography may be helpful in the characterization of
these vascular lesions. We report the sonographic findings in a case of asy
mptomatic idiopathic left ureteral varices. (C) 1999 John Wiley & Sons, Inc
. J Clin Ultrasound 27:353-355, 1999.