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Uptodate Reference Title
Esophagogastric junction
Esophagogastric junction
Esophagogastric junction as seen during esophagogastroduodenoscopy. The light pink mucosa (yellow arrow) represents the squamous lining of the esophagus, whereas the salmon-colored mucosa (white arrow) represents the columnar gastric mucosa. The squamocolumnar junction is also known as the "z-line."