Ureteral pseudodiverticulosis

Dr Daniel J Bell and Dr Amir Rezaee et al.

Ureteral pseudodiverticulosis are acquired false diverticula resulting from herniation of epithelium through the muscularis layer of the ureter and characterized by the presence of multiple outpouchings smaller than 5 mm. It is sometimes bilateral and is often located in the upper two-thirds of the ureter.

The prevalence is relatively uncommon. It is most often seen in men between 40-60 years old.

Most patients are asymptomatic, but it may be seen in patients with a history of chronic urinary tract infection or hematuria.

The etiology and clinical significance of ureteral pseudodiverticulosis are not clear, but chronic inflammation and/or obstruction are likely causes.

Histologically, they demonstrate focal hyperplasia of the urothelium protruding into the muscularis.

An association between the presence of ureteral pseudodiverticula and transitional cell carcinoma has been shown, but a causal relationship has not been demonstrated.

Multiple bilateral small outpouchings of the ureter involving the proximal two-thirds of the ureter. These are most often seen on intravenous urography, antegrade urography, or retrograde pyelography. Very infrequently, pseudodiverticulosis may be detected on multidetector CT.

There is no specific treatment indicated in asymptomatic patients. In the past, since there was an association between pseudodiverticulosis and urothelial carcinoma, more aggressive surveillance had been performed, but it is unclear if this is surveillance is useful 4.

Article information

rID: 44097
System: Urogenital
Tag: case
Synonyms or Alternate Spellings:
  • Ureteric pseudodiverticular disease
  • Ureteral pseudodiverticular disease
  • Ureteral false diverticula
  • Ureteral pseudodiverticulum
  • Ureteral pseudodiverticula
  • Ureteral pseudodiverticulosis
  • Ureteric pseudodiverticulum
  • Ureteric pseudodiverticula
  • Ureteric false diverticulum
  • Ureteric false diverticula
  • Ureteric pseudodiverticulosis

ADVERTISEMENT: Supporters see fewer/no ads

Cases and figures

  • Zoomed in image f...
    Case 1a: ureteral pseudodiverticulosis
    Drag here to reorder.
  • Annotated image f...
    Case 1b: arrows
    Drag here to reorder.
  • Updating… Please wait.

     Unable to process the form. Check for errors and try again.

     Thank you for updating your details.