[Aortoesophageal Fistula due to Aortic Aneurysm;Report of a Case].

: A 77-year-old woman presented with general fatigue, was found to have anemia, and was referred to our hospital. Upper gastrointestinal endoscopy revealed a submucosal elevated lesion with a bleeding site and debris at the middle thoracic esophagus. Enhanced computed tomography demonstrated a thoracic aortic aneurysm compressing the esophagus. She was diagnosed with an aorto-esophageal fistula due to the thoracic aortic aneurysm. Graft replacement was performed under partial extracorporeal circulation. Because the perforation of the esophagus was small, omental flap transposition was performed without esophagectomy. Her post-operative course was uneventful, and she has been doing well without any infective episodes over 3 years after surgery.