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Joseph Junewick, MD FACR
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Bilateral Single System Ureteroceles

Case Detail

Anatomy: Genitourinary
Joseph Junewick, MD FACR
Diagnostic Category: Developmental or Congenital
Created: over 10 years ago
Updated: over 10 years ago
Tags: PEDS
Modality/Study Types: US
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Newborn female with prenatal hydronephrosis.

Case Images


Bilateral Single System Ureteroceles


US – Bilateral single system (i.e., nonduplicated) intravesical ureteroceles with moderate-marked hydroureteronephrosis.


Ureterocele is a congenital cystic dilation of the submucosal segment of the distal ureter within the bladder wall. Single system ureteroceles (SSU)are located within the bladder wall at the orthotopic ureteral ostia; a duplicated system inserts inferiorly and medially. The ureteral orifice is varibly stenotic accounting for the ureterocele and obstruction. SSU usually presents in infancy with signs of urinary tract infection or prenatal diagnosis of hydronephrosis. SSU are usually unilateral (>90%), more often seen in males (78%), and sometimes associated with ipsilateral multicystic dysplasia (29%).


Zerin JM, Baker, DR, Casale JA. Single-system ureteroceles in infants and children: imaging features. Pediatr Radiol 2000; 30:139-146.


Melissa VanderMeullen, RDMS

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