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Bifid ureter

Dr Calum Worsley and Dr Henry Knipe et al.

A bifid ureter, or ureter fissus, is an example of incomplete duplication of a duplex collecting system and is an anatomical variant.

Multiple seemingly unrelated terms for blind-ending bifid ureters are currently in use and there is no consensus on terminology in the literature. These include bifid ureter with a blind-ending pouch, aborted bifid ureteral diverticulum, and aborted duplication of the collecting system ref.

Present in ~5% (range 1-10%) of the population 1,2

A bifid ureter is present when there is a duplex kidney (separate pelvicalyceal collecting systems) draining into separate ureters, but the ureters unite before draining into the bladder at a single ureteric orifice 1

Rarely, one of the branches of a bifid ureter will be blind-ending and will not unite 2.

  • double ureter: persistent of ureters to drain at separate ureteric orifices in the bladder
Anatomy: Abdominopelvic

Anatomy: Abdominopelvic

Article information

rID: 25378
System: Urogenital
Section: Anatomy
Synonyms or Alternate Spellings:
  • Bifid ureters
  • Aborted duplication of the collection system
  • Bifid ureter with a blind-ending pouch
  • Aborted bifid ureteral diverticulum
  • Ureter fissus

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Cases and figures

  • Case 1
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  • Case 2
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  • Case 3: IVU
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  • Case 4
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  • Case 5
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  • Case 6: blind-ending
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  • Case 7: blind-ending
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  • Case 8
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  • Case 9: blind ending bifid ureter
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