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cricopharyngeal achalasia

 

Definition: functional obstruction at the level of the upper esophageal sphincter due to failure of relaxation of the cricopharyngeal muscle; often associated with a pharyngoesophageal diverticulum.

Synonym(s): achalasia of the upper sphincter, hypertensive upper esophageal sphincter

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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