MSD Manual

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Atresia and Fistula: Defects in the Esophagus
Atresia and Fistula: Defects in the Esophagus (2)
Atresia and Fistula: Defects in the Esophagus

In esophageal atresia, the esophagus narrows or comes to a blind end. It does not connect with the stomach as it normally should. A tracheoesophageal fistula is an abnormal connection between the esophagus and the trachea (which leads to the lungs).