Upper urinary tract obstruction at junction of extrarenal pelvis and ureter
IMAGING
General Features
Ultrasonographic Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Staging, Grading, & Classification
Gross Pathologic & Surgical Features
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Image Interpretation Pearls
Selected References
Passoni NM et al: Managing ureteropelvic junction obstruction in the young infant. Front Pediatr. 8:242, 2020
Babu R et al: Pathological changes in ureterovesical and ureteropelvic junction obstruction explained by fetal ureter histology. J Pediatr Urol. 15(3):240.e1-7, 2019
Arena S et al: A long-term follow-up in conservative management of unilateral ureteropelvic junction obstruction with poor drainage and good renal function. Eur J Pediatr. 177(12):1761-65, 2018
Jiang D et al: Functional and morphological outcomes of pyeloplasty at different ages in prenatally diagnosed Society of Fetal Urology grades 3-4 ureteropelvic junction obstruction: Is it safe to wait? Urology. 101:45-49, 2017
Weitz M et al: Primary non-surgical management of unilateral ureteropelvic junction obstruction in children: a systematic review. Pediatr Nephrol. 32(12):2203-13, 2017
Mudrik-Zohar H et al: Prenatal sonographic predictors of postnatal pyeloplasty in fetuses with isolated hydronephrosis. Prenat Diagn. 35(2):142-7, 2015
Rianthavorn P et al: Diagnostic accuracy of neonatal kidney ultrasound in children having antenatal hydronephrosis without ureter and bladder abnormalities. World J Urol. 33(10): 1645-50, 2015
Kumar M et al: Fetal renal anomaly: factors that predict survival. J Pediatr Urol. 10(6):1001-7, 2014
Nguyen HT et al: Multidisciplinary consensus on the classification of prenatal and postnatal urinary tract dilation (UTD classification system). J Pediatr Urol. 10(6):982-98, 2014
Ross SS et al: Observation of infants with SFU grades 3-4 hydronephrosis: worsening drainage with serial diuresis renography indicates surgical intervention and helps prevent loss of renal function. J Pediatr Urol. 7(3):266-71, 2011
Yang Y et al: Long-term follow-up and management of prenatally detected, isolated hydronephrosis. J Pediatr Surg. 45(8):1701-6, 2010
Upper urinary tract obstruction at junction of extrarenal pelvis and ureter
IMAGING
General Features
Ultrasonographic Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Staging, Grading, & Classification
Gross Pathologic & Surgical Features
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Image Interpretation Pearls
Selected References
Passoni NM et al: Managing ureteropelvic junction obstruction in the young infant. Front Pediatr. 8:242, 2020
Babu R et al: Pathological changes in ureterovesical and ureteropelvic junction obstruction explained by fetal ureter histology. J Pediatr Urol. 15(3):240.e1-7, 2019
Arena S et al: A long-term follow-up in conservative management of unilateral ureteropelvic junction obstruction with poor drainage and good renal function. Eur J Pediatr. 177(12):1761-65, 2018
Jiang D et al: Functional and morphological outcomes of pyeloplasty at different ages in prenatally diagnosed Society of Fetal Urology grades 3-4 ureteropelvic junction obstruction: Is it safe to wait? Urology. 101:45-49, 2017
Weitz M et al: Primary non-surgical management of unilateral ureteropelvic junction obstruction in children: a systematic review. Pediatr Nephrol. 32(12):2203-13, 2017
Mudrik-Zohar H et al: Prenatal sonographic predictors of postnatal pyeloplasty in fetuses with isolated hydronephrosis. Prenat Diagn. 35(2):142-7, 2015
Rianthavorn P et al: Diagnostic accuracy of neonatal kidney ultrasound in children having antenatal hydronephrosis without ureter and bladder abnormalities. World J Urol. 33(10): 1645-50, 2015
Kumar M et al: Fetal renal anomaly: factors that predict survival. J Pediatr Urol. 10(6):1001-7, 2014
Nguyen HT et al: Multidisciplinary consensus on the classification of prenatal and postnatal urinary tract dilation (UTD classification system). J Pediatr Urol. 10(6):982-98, 2014
Ross SS et al: Observation of infants with SFU grades 3-4 hydronephrosis: worsening drainage with serial diuresis renography indicates surgical intervention and helps prevent loss of renal function. J Pediatr Urol. 7(3):266-71, 2011
Yang Y et al: Long-term follow-up and management of prenatally detected, isolated hydronephrosis. J Pediatr Surg. 45(8):1701-6, 2010