Esophageal duplications and bronchogenic cysts are part of the spectrum of foregut malformations as both seem to have their origin from the primitive foregut.1 Foregut duplication cysts in children account for up to one-third of mediastinal cysts and are one of the main differential diagnoses for posterior mediastinal tumors. In the literature, approximately 21% of gastrointestinal duplications are reported to be of esophageal origin.2 , 3