PMC5051040_01
Endoscopic photograph showing erosion at the middle esophagus.
gr-05-037-g001.jpg
PMC5051040_01_gr-05-037-g001.jpg
F1
At upper gastrointestinal endoscopic examination, a 5 - 6 mm erosion was seen at the mid-esophagus, 32 cm from the front cutting teeth, the level where the main stem bronchus narrow the esophagus (Fig. 1).