Page J E, Dow C J
Department of Diagnostic Radiology, St George's Hospital, London.
Br J Urol. 1990 Nov;66(5):459-62. doi: 10.1111/j.1464-410x.1990.tb14988.x.
Dilatation in the upper limb of a duplex ureter is usually secondary to obstruction and may be associated with a ureterocele. By contrast, vesicoureteric reflux is the usual cause of a dilated lower moiety ureter. We report 3 cases in which unusual or complex causes of dilatation of 1 limb of a duplex ureter were demonstrated.