Pediatric Ureteral Valve

  • Etiology: Congenital
  • Imaging: Narrowing of the ureter
  • DDX: Ureteral stricture
  • Complications:
  • Treatment: Surgical
  • Clinical:

Radiology Cases of Ureteral Valve

IVP and retrograde ureteroscopy of ureteral valve
Sagittal US of the left kidney (above) shows a moderate amount of hydronephrosis. Image from the excretory phase of an intravenous pyelogram exam (below left) shows a normal right renal collecting system and a markedly dilated left renal collecting system and proximal left ureter. Image from a retrograde ureteroscopy exam (below right) shows normal caliber of the distal and middle left ureter with a sharp area of narrowing in the proximal left ureter with a markedly dilated proximal left ureter above it.