Esophageal varices are best demonstrated in an upright position because the lack of gravity in a recumbent position causes poor visualization.

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Esophageal varices are best demonstrated in a recumbent position because gravity can cause the varices to collapse in an upright position, making them harder to visualize. In a recumbent position, the varices are more likely to be distended and thus better visualized.

Esophageal Varices Are Best Demonstrated in an Upright Position Because