Duodenal atresia is a medical condition in which there is a blockage or narrowing in the first part of the small intestine called the duodenum. This condition can cause severe abdominal pain, vomiting, and constipation. Some potential synonyms for duodenal atresia include congenital duodenal obstruction, duodenal stenosis, and duodenal web. Other related terms may include intestinal atresia, jejunal atresia, and meconium ileus, which are also types of intestinal blockages that can occur in newborns. If left untreated, duodenal atresia can lead to serious complications, including malnutrition and developmental delays. Treatment typically involves surgery to remove the blockage and restore normal intestinal function.