What is the role of ultrasonography in the workup of enterovesical fistula?

Updated: Dec 24, 2020
  • Author: Joseph Basler, MD, PhD; Chief Editor: Bradley Fields Schwartz, DO, FACS  more...
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Answer

Ultrasonography of colovesical fistulae has been described. In some instances, the fistula is easily identified, with no additional maneuvers needed. [46] Ultrasonographic examination of suspected fistulous sites has been enhanced with the technique of manual compression of the lower abdomen, which reveals an echogenic "beak sign" connecting the peristaltic bowel lumen and the urinary bladder. [47] As with cystography, ultrasonography is rarely used for primary imaging of fistulae.


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