Rare case report of anorectal malformation and intestinal atresia.

Intestinal malformations, such as intestinal atresia, malrotation, and anorectal malformation, are rare events, but concurrent intestinal atresia and anorectal malformation are rare in combination. These anomalies have similar in utero and perinatal symptoms, which can make the diagnosis of both defects prenatally challenging. We present a case of a male infant with a prenatal diagnosis of truncus arteriosus who on a 32-week routine prenatal ultrasound was suspected to have an intestinal malformation. On day of life one, the patient was taken to the operating room and found to have both type IIIa ileal atresia and anorectal malformation with normal bowel in between. A complete work up for vertebral defects, anorectal malformation, cardiac septal defects, esophageal atresia, renal anomalies, and radial limb defects (VACTERL) anomalies did not reveal additional anomalies. In this case, prenatal information supported intestinal obstruction, and the rare combination of both intestinal atresia and anorectal malformation proved surprising and interesting. We suggest providers be aware of the potential of multiple alimentary tract malformations to improve operative preparation and reduce the morbidity or mortality risk from repeat procedures when possible.

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