PMC6095640_01
Colonoscopy showing divergence of the colon into 2 separate lumens 20 cm from the anal verge.
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F1
At 20 cm from the anal verge, the colon appeared to diverge into 2 separate lumens (Figure 1).
Barium enema showing potential branching point of the sigmoid colon.
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F2
Barium enema showed a potential branching point of the sigmoid colon, but the anatomy was difficult to evaluate due to severe diverticular disease (Figure 2).