Congenital dilatation of intramucosal segment of ureter
Dilated segment prolapses into bladder lumen
Variable types
Simple
Occurs at normal ureterovesical junction
Located at trigone of bladder
Less commonly seen in fetus
Ectopic
Almost always associated with renal duplication
Located medially and inferiorly to trigone, near bladder base
Ectopic ureter is usually stenotic at bladder
Ectopic ureter may insert outside of bladder
Directly onto perineum
Urethra
Females: Vagina, uterus
Males: Epididymis, seminal vesicles, ejaculatory ducts, vas deferens
Cecoureterocele (uncommon)
Dissects submucosally under bladder trigone into urethra
IMAGING
General Features
Ultrasonographic Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Consider
Image Interpretation Pearls
Selected References
Tam T et al: Embryology of the urogenital tract; a practical overview for urogynecologic surgeons. Int Urogynecol J. 32(2):239-47, 2021
Bascietto F et al: Prenatal imaging features and postnatal outcomes of isolated fetal duplex renal collecting system: a systematic review and meta-analysis. Prenat Diagn. 40(4):424-31, 2020
Srisajjakul S et al: Diagnostic clues, pitfalls, and imaging characteristics of '-celes' that arise in abdominal and pelvic structures. Abdom Radiol (NY). 45(11):3638-52, 2020
Ucar AK et al: Urinary Ultrasound and Other Imaging for Ureteropelvic Junction Type Hydronephrosis (UPJHN). Front Pediatr. 8:546, 2020
Turkyilmaz G et al: Antenatally detected ureterocele: Associated anomalies and postnatal prognosis. Taiwan J Obstet Gynecol. 58(4):531-35, 2019
Jain P et al: Rare cases of ectopic ureter: Analysis from a single centre with review of the literature. Turk J Urol. 1-6, 2018
Chalouhi GE et al: Prenatal incision of ureterocele causing bladder outlet obstruction: a multicenter case series. Prenat Diagn. 37(10):968-974, 2017
Chow JS et al: Multidisciplinary consensus on the classification of antenatal and postnatal urinary tract dilation (UTD classification system). Pediatr Radiol. 45(6):787-9, 2015
Timberlake MD et al: Minimally invasive techniques for management of the ureterocele and ectopic ureter: upper tract versus lower tract approach. Urol Clin North Am. 42(1):61-76, 2015
Torres Montebruno X et al: Fetoscopic laser surgery to deobstruct a prolapsed Ureterocele. Ultrasound Obstet Gynecol. 46(5): 623-6, 2015
Queiroga EE Jr et al: Antenatal diagnosis of renal duplication by ultrasonography: report on four cases at a referral center. Urol J. 10(4):1142-6, 2014
Godinho AB et al: Ureterocele: antenatal diagnosis and management. Fetal Diagn Ther. 34(3):188-91, 2013
Castagnetti M et al: Management of duplex system ureteroceles in neonates and infants. Nat Rev Urol. 6(6):307-15, 2009
Morris RK et al: Antenatal ultrasound to predict postnatal renal function in congenital lower urinary tract obstruction: systematic review of test accuracy. BJOG. 116(10):1290-9, 2009
Kajbafzadeh AM et al: Comparison of magnetic resonance urography with ultrasound studies in detection of fetal urogenital anomalies. J Pediatr Urol. 4(1):32-9, 2008
Ashmead GG et al: Fetal bladder outlet obstruction due to ureterocele: in utero "colander" therapy. J Ultrasound Med. 23(4):565-8, 2004
Sepulveda W et al: Prenatal sonographic diagnosis of bilateral ureteroceles: the pseudoseptated fetal bladder. J Ultrasound Med. 22(8):841-4; quiz 845-6, 2003
Related Anatomy
Loading...
Related Differential Diagnoses
Loading...
References
Tables
Tables
KEY FACTS
Terminology
Imaging
Top Differential Diagnoses
Pathology
Clinical Issues
Diagnostic Checklist
TERMINOLOGY
Definitions
Congenital dilatation of intramucosal segment of ureter
Dilated segment prolapses into bladder lumen
Variable types
Simple
Occurs at normal ureterovesical junction
Located at trigone of bladder
Less commonly seen in fetus
Ectopic
Almost always associated with renal duplication
Located medially and inferiorly to trigone, near bladder base
Ectopic ureter is usually stenotic at bladder
Ectopic ureter may insert outside of bladder
Directly onto perineum
Urethra
Females: Vagina, uterus
Males: Epididymis, seminal vesicles, ejaculatory ducts, vas deferens
Cecoureterocele (uncommon)
Dissects submucosally under bladder trigone into urethra
IMAGING
General Features
Ultrasonographic Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Consider
Image Interpretation Pearls
Selected References
Tam T et al: Embryology of the urogenital tract; a practical overview for urogynecologic surgeons. Int Urogynecol J. 32(2):239-47, 2021
Bascietto F et al: Prenatal imaging features and postnatal outcomes of isolated fetal duplex renal collecting system: a systematic review and meta-analysis. Prenat Diagn. 40(4):424-31, 2020
Srisajjakul S et al: Diagnostic clues, pitfalls, and imaging characteristics of '-celes' that arise in abdominal and pelvic structures. Abdom Radiol (NY). 45(11):3638-52, 2020
Ucar AK et al: Urinary Ultrasound and Other Imaging for Ureteropelvic Junction Type Hydronephrosis (UPJHN). Front Pediatr. 8:546, 2020
Turkyilmaz G et al: Antenatally detected ureterocele: Associated anomalies and postnatal prognosis. Taiwan J Obstet Gynecol. 58(4):531-35, 2019
Jain P et al: Rare cases of ectopic ureter: Analysis from a single centre with review of the literature. Turk J Urol. 1-6, 2018
Chalouhi GE et al: Prenatal incision of ureterocele causing bladder outlet obstruction: a multicenter case series. Prenat Diagn. 37(10):968-974, 2017
Chow JS et al: Multidisciplinary consensus on the classification of antenatal and postnatal urinary tract dilation (UTD classification system). Pediatr Radiol. 45(6):787-9, 2015
Timberlake MD et al: Minimally invasive techniques for management of the ureterocele and ectopic ureter: upper tract versus lower tract approach. Urol Clin North Am. 42(1):61-76, 2015
Torres Montebruno X et al: Fetoscopic laser surgery to deobstruct a prolapsed Ureterocele. Ultrasound Obstet Gynecol. 46(5): 623-6, 2015
Queiroga EE Jr et al: Antenatal diagnosis of renal duplication by ultrasonography: report on four cases at a referral center. Urol J. 10(4):1142-6, 2014
Godinho AB et al: Ureterocele: antenatal diagnosis and management. Fetal Diagn Ther. 34(3):188-91, 2013
Castagnetti M et al: Management of duplex system ureteroceles in neonates and infants. Nat Rev Urol. 6(6):307-15, 2009
Morris RK et al: Antenatal ultrasound to predict postnatal renal function in congenital lower urinary tract obstruction: systematic review of test accuracy. BJOG. 116(10):1290-9, 2009
Kajbafzadeh AM et al: Comparison of magnetic resonance urography with ultrasound studies in detection of fetal urogenital anomalies. J Pediatr Urol. 4(1):32-9, 2008
Ashmead GG et al: Fetal bladder outlet obstruction due to ureterocele: in utero "colander" therapy. J Ultrasound Med. 23(4):565-8, 2004
Sepulveda W et al: Prenatal sonographic diagnosis of bilateral ureteroceles: the pseudoseptated fetal bladder. J Ultrasound Med. 22(8):841-4; quiz 845-6, 2003
STATdx includes over 200,000 searchable images, including x-ray, CT, MR, and ultrasound images. To access all images, please log in or subscribe.