Intrathoracic foregut cyst (foregut duplication) associated with esophageal atresia.

Intrathoracic foregut duplication cysts are rare congenital foregut malformations that usually produce respiratory symptoms in early infancy. Surgical resection of this anomaly is usually followed by permanent cure. Two cases of intrathoracic foregut duplication cyst associated with esophageal atresia are reported. The first patient had an associated tracheoesophageal fistula while the second had an isolated atresia. Both patients survived following resection of the cysts.