[Upper esophageal duplication. Apropos of a case disclosed by respiratory distress].

The authors report a new case of cystic oesophageal duplication, discovered in a 10-month-old infant. This case is unusual because of its site: thoraco-cervical, and its acute clinical manifestations: respiratory depression. A surgical resection was performed after Barium swallow, chest X-ray and ultrasonography. Surgery ensured rapid clinical improvement. Pathology confirmed the diagnosis of cystic oesophageal duplication.