THE MERCK MANUAL: The Merck Manual of Diagnosis and Therapymultimedia

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Motility Disorders

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Achalasia

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Achalasia

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  • Motility Disorders
  • Barium swallow is the test of choice for diagnosing achalasia, but endoscopy is often also done during the course of a diagnostic evaluation. Endoscopy typically shows retained food, proximal esophageal dilation, and absence of true stricture or neoplasm.

    Image provided by David M. Martin, MD.

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