Barrett’s esophagus short segment. High magnification image. The gastroesophagic junction (Squamocolumnar junction) is observed, the microvillis are appreciated that are similar to the microvillis of the duodenum (presence of intestinal metaplasia) confirmed on biopsy. The presence of intestinal metaplasia in the columnar lined distal esophagus defines Barrett's esophagus with the risk of future malignant transformation. During endoscopic examination, the appearance of the esophagogastric junctionis carefully inspected (EGJ; defined as the junction of the proximal gastric folds and the tubular esophagus) The squamocolumnar junction was also identified as the point where the squamous mucosa joined the salmon-color columnar mucosa.
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