Pediatric Ureterovesical Junction Obstruction (UVJ)

Pediatric Ureterovesical Junction Obstruction (UVJ)

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Summary

Ureterovesical junction (UVJ) obstruction occurs when the ureter (tube that drains urine from the kidney to the bladder) is blocked at the bladder.

Expanded overview

The ureterovesical junction is located where the ureter (tube that drains urine from the kidney to the bladder) meets the bladder. Ureterovesical junction (UVJ) obstruction means that there is blockage in this area. Therefore, urine backs up into the ureters and into the kidneys – known as hydronephrosis – and causes swelling and associated problems.

Causes

UVJ obstruction occurs during fetal development, and the cause may be:

  • Benign polyp (non-cancerous lump that forms on an organ)
  • Infection
  • Kidney stones
  • Scar tissue

Symptoms

Signs and symptoms of UVJ obstruction include:

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