[Voluminous duplication of the cervical esophagus. Contribution of imaging].

The radiologic imaging of esophageal cysts in adults is described. These rare cysts are often an incidental finding. They can lead to severe airway or digestive obstruction. Rare cases of rupture and haemorrhage are described. The authors report a case of cervical esophageal duplication, investigated by pharyngography, sonography, CT and MRI. A cystic mass located between the esophagus and trachea was depicted. Pharyngography and MRI showed the communication of the superior pole of the mass with the cervico-esophageal junction as a midline vertical tract. The upper extremity of the tract opened at the antero-medical portion of the retro-cricoïd region. The other diagnostic possibilities were excluded, especially fourth branchial pouch fistulae.