Presentation
Emergency C-section due to placenta percreta. Bladder dome injury at the time. Subsequent bladder repair, transureteroureterostomy. Postoperative leak?
Patient Data
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IVU shows bilateral ureteric stents, right-sided ureteroureterostomy without leak at this site.
Both kidneys concentrate and excrete normally.
CYSTOGRAM shows small volume bladder filled to 150 mL (maximum patient saiety).
Progressive contrast accumulation in a linear fashion with a more bulbous upper end posterior to the bladder in keeping with the vagina.
The patient was treated conservatively for 5 months. Follow up CT-IVU undertaken.

Bilateral ureteric stents.
Right-sided ureteroureterostomy.
Small amount of contrast accumulating in the dependent position of the upper vagina. No contrast filled fistulous tract identified.
Cystography peformed 4 days later
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Bladder filled to 150 mL (maximum patient saiety).
Bilateral ureteric stents. Right-sided ureteroureterostomy.
Progressive contrast accumulation in a linear fashion with a more bulbous upper end posterior to the bladder in keeping with the vagina.
Appearances unchanged from prior study. The exact site of the fistulous tract is not identified.
CT cystography performed 4 days later
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4 mm fistulous from the dome of the bladder to the vaginal vault.
The vagina is filled with a large volume of contrast.
Comment: High vesicovaginal fistula.
The patient felt wet below at the time of the study clinically correlating with the above.
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The CT CYSTOGRAM shows the exact site of the tract between the dome of the bladder and the vaginal vault.
It is illustrated with contrast and air within the fistulous tract.
B = bladder. V = vagina
Case Discussion
The kind of case which makes you want to go to work.
An example of 2 important concepts in imaging:
- doing the right test for the clinical problem
- the value of like for like imaging
- the underestimated value of interval scanning