PMC7732972_01
PMC7732972_02
The plain abdominal X-ray shows a markedly distended loop of large bowel arising from the pelvis with air-fluid level and absence of the rectal gas and distention of the descending colon, consistent with sigmoid volvulus.
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On plain abdominal X-ray images, a markedly distended loop of large bowel arising from the pelvis with the absence of the rectal gas and distention of the descending colon was observed [Fig. 1].
a. Contrast-enhanced axial abdominal CT image shows a torsion in two levels around the mesentery in the bowel loop at the sigmoid colon. The colonic loops were markedly dilated between the levels of the torsion and gas-stool retention and dilatation was present in the colonic loops more proximal to the twist. b. Contrast-enhanced coronal abdominal CT image shows a torsion in two levels around the mesentery in the bowel loop at the sigmoid colon. The colonic loops were markedly dilated between the levels of the torsion and in the colonic loops more proximal to the twist. c. Curved MPR abdominal CT image shows the twisted loop of the sigmoid colon.
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In abdominal CT images, a torsion was noted in two levels around the mesentery in the bowel loop at the sigmoid colon [Fig. 2a-c].
a Contrast-enhanced axial abdominal CT image shows dilated small bowel loops with small bowel feces signs. b. Contrast-enhanced coronal abdominal CT image shows a torsion in two levels around the mesentery in the bowel loop at the sigmoid colon. The colonic loops were markedly dilated between the levels of the torsion and in the colonic loops more proximal to the twist.
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Gas-stool retention and dilatation was present in the colonic loops more proximal to the twist as well as in the distal ileal loops [Fig. 3a and b].
The plain abdominal X-ray one week after endoscopic detorsion shows a markedly distended loop of large bowel arising from the pelvis with air-fluid level and absence of the rectal gas and distention of the descending colon, consistent with recurrent sigmoid volvulus.
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Plain abdominal X-ray and CT conformed the diagnosis [Fig. 4, Fig. 5].