A 73-year-old woman presented to the emergency department because of loss of consciousness; she recovered within a few minutes. Chest CT revealed a large intraluminal tumor arising from the proximal esophagus (Fig. 1). Accordingly, she was referred to our department. Barium esophagography revealed an approximately 10-cm-long intraluminal esophageal mass arising from the cervical esophagus (Fig. 2).