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Paediatric unilateral giant hydroureteronephrosis from idiopathic ureterovesical stricture: a case report
Marco Zaffanello1, Milena Brugnara, Mariangela Cecchetto
1University of Verona, Department of Mother-Child and Biology-Genetics, Piazzale LA Scuro, 10, Verona, 37134, Italy.
Insights
Idiopathic ureterovesical junction obstruction can cause severe hydroureteronephrosis in children. Surgical intervention restored kidney function in a 6-year-old boy presenting with flank pain.
Area of Science:
- Pediatric Urology
- Congenital Abnormalities
- Nephrology
Background:
- Congenital ureterovesical junction obstruction is a potential fetal or childhood condition.
- It is often linked to urinary tract infections or other secondary causes.
- Idiopathic obstruction can manifest later in childhood, even with normal prenatal screening.
Purpose of the Study:
- To present a case of a 6-year-old boy with idiopathic ureterovesical junction obstruction.
- To highlight the diagnostic and therapeutic challenges of late-presenting obstruction.
- To emphasize the importance of surgical intervention for significant hydroureteronephrosis and declining kidney function.
Main Methods:
- Case report of a 6-year-old male patient.
- Diagnostic evaluation included scintigraphy to assess kidney function and imaging for hydronephrosis.
- Surgical intervention for ureterovesical junction obstruction.
Main Results:
- The patient presented with monthly worsening colic and flank pain.
- A giant hydroureteronephrosis was diagnosed, secondary to idiopathic ureterovesical junction obstruction.
- Kidney function improved significantly after surgical correction of the obstruction.
Conclusions:
- Idiopathic ureterovesical junction obstruction can present symptomatically in late childhood.
- Severe hydroureteronephrosis with decreased kidney function and pain are indications for surgical correction.
- Prompt surgical treatment can lead to substantial recovery of renal function.
Abstract:
A congenital type of ureterovesical junction obstruction may be present in the fetus or at any stage during childhood, more commonly associated with urinary tract infections and other secondary causes. We present the case of a 6-year-old boy who suffered from colic and side pain, which was worsening monthly. He suffered from a giant hydroureteronephrosis resulting from idiopathic ureterovesical junction obstruction, with no clinical or laboratory signs of urinary tract infection or other secondary causes of obstruction. Indications for surgery were a decrease in kidney function (<40%) at scintigraphy, severe hydronephrosis (>30 mm), and the coexistence of symptoms (colic pain). After surgery, kidney function returned to almost completely normal. Unexpectedly an obstruction may become symptomatic late in infancy, especially in patients with normal prenatal ultrasound screening and postnatal life, as was the case for our patient in whom the only clinical sign was pain at flank.
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