1. 
   Ureterolcele
   A birth defect in which one of the ureters is swollen, which can block the normal flow of urine. Because the urine collects in the ureter (the tube that carries the urine from the kidney to the bladder), it makes the ureter blow up like a balloon. Ureteroceles affect approximately 1 in 500 to 1 in 4...
   Found op http://www.pregnology.com/AZ/U/1
   
   

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