Post contrast - 10 min
Modality: Fluoroscopy (Post contrast - 10 min)

- “ The cobra head sign is an indicator of an uncomplicated ureterocele. ”

Used in the following article:

  • Cobra head sign (ureter) - “ The cobra head sign, also known as the spring onion sign, refers to dilatation of the distal ureter, surrounded by a thin lucent line, which is se...”
  • Ureterocele - “ Ureteroceles represent congenital dilatation of the distal-most portion of the ureter. The dilated portion of the ureter may herniate into the bla...”

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