Duodenal atresia is a condition typically diagnosed in the neonatal period. Here, we discuss an 11-year-old patient with a new diagnosis of duodenal atresia, discovered during a lysis of adhesions. The patient had a history of malrotation and was status-post Ladd's procedure, but had continued to experience bilious emesis and symptoms of intestinal obstruction since 1 month of age, resulting in lifetime total parenteral nutrition (TPN) dependence. She was subsequently diagnosed with microcolon

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... egacystic hypoperistalsis syndrome (MMHS) and underwent loop jejunostomy creation that proved unsuccessful in relieving her symptoms. Duodenal atresia was recognized and repaired intraoperatively during a planned loop jejunostomy revision.