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Case report demonstrates Ladd's band obstructing the duodenum in an adult with midgut volvulus, suggesting the need for surgical exploration.
Adult intestinal malrotation is a rare condition and may remain undiagnosed until the occurrence of acute complications. We report the case of a 33-year-old woman presenting with acute abdominal pain. Contrast-enhanced computed tomography (CT) demonstrated an abnormal relationship between the superior mesenteric artery and vein, right-sided small bowel loops, left-sided colonic segments and a mesenteric whirlpool sign, consistent with midgut volvulus associated with intestinal malrotation. Although CT allows reliable identification of intestinal malrotation and midgut volvulus, the precise obstructive mechanism may remain undetermined preoperatively. Surgical exploration revealed a congenital Ladd’s band crossing the duodenum and causing extrinsic duodenal obstruction. In addition, an associated midgut volvulus related to intestinal malrotation was confirmed intraoperatively. This case highlights the diagnostic value and limitations of CT in adult malrotation and emphasizes the importance of surgical exploration to identify the true obstructive mechanism.
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Obilat et al. (2026) studied this question.
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