What is the role of CT scanning in the workup of sigmoid and cecal volvulus?

Updated: Nov 28, 2018
  • Author: Scott C Thornton, MD; Chief Editor: John Geibel, MD, DSc, MSc, AGAF  more...
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Answer

Computed tomography (CT) is not often needed, because the plain radiographic findings typically suffice for diagnosis of sigmoid volvulus. However, the radiographic findings for cecal volvulus may be less diagnostic. In such cases, CT can delineate the exact site of the torsion and reveal evidence of ischemia.

Upward displacement of the appendix with large-bowel obstruction is a definitive sign of cecal volvulus. Additionally, decompressed transverse and descending colon are apparent.


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