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).
ID
http://purl.bioontology.org/ontology/MESH/D004931
altLabel
Achalasia, Esophageal
Megaesophagus
Cardiospasms
Cardiospasm
Achalasias
Achalasias, Esophageal
Esophageal Achalasias
Achalasia
AN
CARDIOSPASM refers to spasm of the CARDIA, not the heart; not for esophageal spasm ( = ESOPHAGEAL SPASM, DIFFUSE)
AQL
BL CF CI CL CN CO DG DH DI DT EC EH EM EN EP ET GE HI IM ME MI MO NU PA PC PP PS PX RH RT SU TH UR VE VI
cui
C0025164
C0014848
DC
1
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).
DX
19850101
HN
1985; for ACHALASIA OF ESOPHAGUS use CARDIOSPASM 1974-1984; for ACHALASIA use CARDIOSPASM 1963-1973; CARDIOSPASM was heading 1963-1984
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