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Esophageal Achalasia

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Definition: A motility disorder of the ESOPHAGUS in which the LOWER ESOPHAGEAL SPHINCTER (near the CARDIA) fails to relax resulting in functional obstruction of the esophagus, and DYSPHAGIA. Achalasia is characterized by a grossly contorted and dilated esophagus (megaesophagus).  CARDIOSPASM refers to spasm of the CARDIA, not the heart; not for esophageal spasm (    Other names Megaesophagus; Cardiospasm; Achalasia, Esophageal; Esophageal Achalasias; Cardiospasms; Achalasias, Esophageal; Achalasias; Achalasia
 
SubstanceCAS Registry & nameCategoriesSource
Achalasia, familial esophageal  0   *Esophageal Achalasia.
Achalasia microcephaly  0   *Esophageal Achalasia *Microcephaly.
Achalasia alacrimia syndrome  0   *Esophageal Achalasia.
Achalasia Addisonianism Alacrimia syndrome  0   *Adrenal Insufficiency *Esophageal Achalasia.

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Sources: NLM Medical Subject Headings, NIH UMLS, Drugs@FDA, FDA AERS original data copyright United States Government. No endorsement implied. Last modified 6/6/2012
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