PMC5852906_01
Magnetic resonance imaging without contrast performed at 32 weeks' gestation. There is marked distention of the sigmoid colon beginning at the level of the sigmoid along the left lateral aspect of the uterus where there appears to be a small, early (90 degree) twist of the sigmoid colon. The fetus may also be seen in this image.
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Subsequently, she returned at 32 4/7 weeks with similar complaints; the gastroenterology service was consulted, and magnetic resonance imaging confirmed a 90-degree twist of the colon 30 cm from the anal verge (Figure 1).
Computer tomography imaging with intravascular contrast performed on postpartum day 1. There is twisting of the mesentery and focal mesenteric edema in the mid lower abdomen. The findings are consistent with sigmoid volvulus.
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Unfortunately she again experienced worsening abdominal pain on the first day postpartum, with computer tomography imaging confirming sigmoid distention with recurrence of volvulus (Figure 2).