The gastric mucosa is darker than the pale pink esophageal mucosa. Peristaltic waves can be seen during endoscopic examination. The rich arterial supply of the esophagus is segmental (Figure 2).

The gastric mucosa is darker than the pale pink esophageal mucosa. Peristaltic waves can be seen during endoscopic examination. The rich arterial supply of the esophagus is segmental (Figure 2).