Urinary bladder diverticulum

A urinary bladder diverticulum (plural: diverticula) is an outpouching from the bladder wall, whereby mucosa herniates through the bladder wall. It may be solitary or multiple in nature and can vary considerably in size.

There are two peaks; one at 10 years and the other at 60-70 years 2.

Diverticula may be congenital (primary) or acquired (secondary) and a range of causes of urinary bladder diverticula are described.

Acquired diverticula are more common, usually occurring in the context of a trabeculated bladder, resulting from chronic bladder outlet obstruction.

Diverticula are often an incidental finding on imaging investigations, including ultrasound, CT, MRI and IVU.

They may be associated with a range of complications due to stasis and low-grade infection including:

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Article information

rID: 25906
System: Urogenital
Section: Gamuts
Synonyms or Alternate Spellings:
  • Bladder diverticulum
  • Urinary bladder diverticula
  • Urinary bladder diverticulae

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Cases and figures

  • IVU images shows ...
    Case 1: on IVU
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  • Case 2: on CT
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  • Case 3: on ultrasound
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  • Case 4: from prostatomegaly
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  • Case 5
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  • Case 6: severe
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  • Case 7: transitional cell cancer in a diverticulum
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  • Case 8
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  • Case 9: due to posterior urethral valve
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  • Case 10
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  • Case 11
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