General
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• Uncommon anomaly most often seen in infants, occasionally in adults, due to improper embryologic rotation of gut
• Also defined as intestinal malrotation as intestinal nonrotation or incomplete rotation around the superior mesenteric artery (eMedicine)
• Symptoms may first occur in women during pregnancy (Obstet Gynecol 1993;81:817)

Drawings
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Various images

Case reports
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• 2 day old male infant with imperforate anus, malrotation, and Hirschsprung's disease with double zonal aganglionosis (J Pediatr Surg 2008;43:222)
• 75 year old man with giant inguinal hernia with intestinal malrotation (Int J Surg Case Rep 2012;3:563)

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