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Esophageal Achalasia MeSH Descriptor Data 2025


MeSH Heading
Esophageal Achalasia
Tree Number(s)
C06.405.117.119.500.432
Unique ID
D004931
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D004931
Annotation
CARDIOSPASM refers to spasm of the CARDIA, not the heart; not for esophageal spasm ( = ESOPHAGEAL SPASM, DIFFUSE)
Scope Note
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).
Entry Term(s)
Achalasia
Achalasia, Esophageal
Cardiospasm
Megaesophagus
NLM Classification #
WI 258
Public MeSH Note
1985; for ACHALASIA OF ESOPHAGUS see CARDIOSPASM 1974-1984; for ACHALASIA see CARDIOSPASM 1963-1973; CARDIOSPASM was heading 1963-1984
History Note
1985; for ACHALASIA OF ESOPHAGUS use CARDIOSPASM 1974-1984; for ACHALASIA use CARDIOSPASM 1963-1973; CARDIOSPASM was heading 1963-1984
Date Established
1985/01/01
Date of Entry
1999/01/01
Revision Date
2009/07/06
Esophageal Achalasia Preferred
Megaesophagus Related
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