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Ureteral pseudodiverticulosis

Case contributed by Matt A. Morgan
Diagnosis certain

Presentation

Microscopic hematuria. The patient recently had a CT urogram in which there was nonfilling of the right distal ureter, so a retrograde pyelogram was ordered.

Patient Data

Age: 65 years
Gender: Male
Fluoroscopy

Images from a retrograde pyelogram: In the mid-ureter, there are tiny (1-2 mm) outpouchings of contrast, compatible with ureteral pseudodiverticulosis.

Annotated image

Arrows point to the multiple tiny pseudodiverticula in the mid-ureter.

Case Discussion

Ureteral pseudodiverticulosis is an uncommon process that has been associated with the development of urothelial (transitional) cell carcinoma.

It can be seen on a CT urogram (CTU) but is much easier to detect on IVU or a retrograde pyelogram. In this case, the pseudodiverticula was not visible on the CTU.

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