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Walk the Even Hospital Database by book and chapter — the raw source passages that ground Ask, DDx, and the rest.

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contentuptodate· Content· item f0_40_643

©2013 UpToDate ® Print Email Barium swallow showing achalasia This figure shows an actual x-ray of someone with achalasia. You can see that the lower esophagus is enlarged compared to the upper part, and that the lower esophageal sphincter is very narrow. The damaged lower esophageal sphincter makes it hard for food and fluid to pass into the stomach.