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The Mouse Adult Gross Anatomy Ontology and Mammalian Phenotype Ontology are downloaded weekly from the Mouse Genome Informatics databases at Jackson Laboratories ( For more information about these ontologies, see the MGI Publications Page at

Term:esophageal achalasia
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Accession:MP:0011570 term browser browse the term
Definition:failure of the normal relaxation of the lower esophageal sphincter associated with the uncoordinated contractions of the thoracic esophagus, resulting in functional obstruction
Synonyms:exact_synonym: achalasia of the cardia
 narrow_synonym: cardiospasm

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Path 1
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  mammalian phenotype 5402
    digestive/alimentary phenotype 78
      abnormal digestive system physiology 28
        abnormal gastroesophageal sphincter physiology 0
          esophageal achalasia 0
Path 2
Term Annotations click to browse term
  mammalian phenotype 5402
    muscle phenotype 199
      abnormal muscle physiology 124
        abnormal muscle contractility 74
          abnormal esophageal peristalsis 0
            esophageal achalasia 0
paths to the root