Duodenal atresia develops in utero during the first trimester but is not always diagnosed on prenatal screening. Newborns will present with abdominal distension, feeding intolerance, bilious emesis, lethargy, and dehydration.
Q41.0 – Congenital absence, atresia and stenosis of duodenum
51118003 – Congenital atresia of duodenum
Differential Diagnosis & Pitfalls