Vesico-urachal diverticulum

Vesico-urachal diverticulum is one of the congenital urachal remnant abnormalities.

It is the proximal equivalent of a urachal umbilical sinus, representing a result of the failure of the urachus to close at the urinary bladder, forming an out-pouching of variable length from the anterosuperior aspect of the urinary bladder, which does not communicate with the umbilicus

This anomaly is identified as a urine-filled anterosuperior extension from the bladder dome on all imaging modalities. 

A urachal diverticulum frequently coexists with congenital obstruction of the lower urinary tract. Rarely a malignancy can arise within the diverticulum: see urachal carcinoma

Article information

rID: 12214
Section: Anatomy
Synonyms or Alternate Spellings:
  • Vesico-urachal diverticula
  • Vesicourachal diverticulum
  • Vesicourachal diverticula

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Cases and figures

  • Figure 1: vesicourachal diverticulum
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  • Case 1
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  • Case 2
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  • Case 3: infected vesicourachal diverticulum
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  • Case 4
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