What are a colon, duodenal, jejunal, ileal atresias?
The first part of the small intestine (just past the stomach) is the duodenum. After that is the Jejunum and then the ileum. Finally, the ileum empties into the colon.
Anywhere along its length, the intestine can form a blockage before the baby is born. This blockage is usually where one segment is not connected to the rest, and is called an atresia. Jejunal and ileal atresias are most common, followed by duodenal and colon atresias.
Babies with atresias require an operation to re-connect the segments that aren’t properly formed, allowing food to flow through the intestinal tube all the way from the mouth to the rectum.