What is the role of pelvic mass in the etiology of sigmoid volvulus?

Updated: Jul 24, 2020
  • Author: Scott C Thornton, MD; Chief Editor: John Geibel, MD, MSc, DSc, AGAF  more...
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The presence of a pelvic mass also increases the risk of developing sigmoid volvulus. The mass displaces the sigmoid colon sufficiently to result in torsion of the mesentery and subsequent volvulus. The association of pregnancy and large ovarian tumors with sigmoid volvulus is well known. In Western societies, as many as 45% of pregnant patients with intestinal obstruction have sigmoid volvulus.

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