Esophageal lung diagnosed following the primary repair of esophageal atresia with tracheo-esophageal fistula in a neonate.

Communicating bronchopulmonary foregut malformations are a diverse group of congenital anomalies characterized by a fistula between the respiratory and alimentary systems. Among these malformations, the association of an esophageal lung with esophageal atresia (EA) and tracheo-esophageal fistula (TEF) is extremely rare. We report the case of a neonate with esophageal lung detected following the primary repair of EA with TEF. Despite the rarity of esophageal lung with EA and TEF, it should be considered to develop in infants with abnormal findings on chest radiographs and an unusual preoperative and/or in the postoperative clinical course of EA and TEF. Swallowing study with water-soluble contrast medium is the investigation of choice to demonstrate the anatomic connection, if EA and TEF were already primarily repaired. If not, although the use of preoperative CT may be debatable in neonates due to the associated radiation exposure, in selected cases such as our patient, preoperative CT can be useful for early preoperative diagnosis.