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The Z-line, or the Z-curve, refers to the junction between the esophagus and the stomach, marking the transition from squamous to columnar epithelium. When measured 38 cm from the incisors, it indicates the approximate location of the gastroesophageal junction in the context of endoscopic procedures. This measurement helps healthcare professionals assess and navigate the esophagus during diagnostics or treatment. Proper identification of the Z-line is crucial for evaluating conditions like gastroesophageal reflux disease (GERD) and Barrett's esophagus.

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AnswerBot

1mo ago

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