Radiologic findings of PUV in fetal ultrasound

  • Thickened bladder wall
  • Bilateral dilated ureter
  • Keyhole sign may be seen on ultrasound due to the distention of both the bladder and the urethra immediately proximal to the valve

In severe cases of obstruction

  • Oligohydramnios
  • Urinary ascites or a perinephric urinoma due to rupture of the fornix or calyx because of increased pressure in the kidney
  • A large bladder diverticula or patent urachus may be detected
  • Increased renal echogenicity and cortical cysts suggestive of renal dysplasia
Obstructive uropathies | 3. Mastering the treatment of obstructive uropathy
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