Figure 2.

UGI barium examination showing a dilated esophagus in its abdominal and thoracic parts (a-d showing the evolution over time up to 20 min). UGI: Upper gastrointestinal

UGI barium examination showing a dilated esophagus in its abdominal and thoracic parts (a-d showing the evolution over time up to 20 min). UGI: Upper gastrointestinal