Achalasia
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Synonyms
Cardiospasm
Dyssynergia Esophagus
Esophageal Aperistalsis
Megaesophagus
General Discussion
Achalasia is a rare disorder of the esophagus characterized by the abnormal enlargement of the esophagus, impairment of the ability of the esophagus to push food down toward the stomach (peristalsis), and the failure of the ring-shaped muscle (sphincter) at the bottom of the esophagus to relax.
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