Presentation
Antenatal history of right renal pelvis dilatation.
Patient Data
Rounded cystic structure within the bladder, to the right of midline. Some echogenic debris can be seen within the structure. The appearance is characteristic of a ureterocele.
Case Discussion
A ureterocele is a congenital dilatation of the intramucosal portion of the ureter. A ureterocele may be simple or ectopic. Ectopic ureterocele is almost always associated with a duplicated collecting system, and is more common than the simple type. Ureterocele may be associated with either reflux or obstruction. A ureterocele may prolapse into the bladder neck and cause bladder outlet obstruction. The prognosis is related to the degree of associated reflux or obstruction.