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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:tympanic membrane retraction
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Accession:MP:0030413 term browser browse the term
Definition:a condition in which a segment of the tympanic membrane (eardrum) collapses inwards towards the middle ear space and lies more medially (deeper) than its normal position; the retracted segment is often known as a retraction pocket
Synonyms:exact_synonym: eardrum retraction;   retracted eardrum;   retracted tympanic membrane

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  mammalian phenotype 5415
    hearing/vestibular/ear phenotype 23
      abnormal ear morphology 12
        abnormal middle ear morphology 0
          abnormal tympanic membrane morphology 0
            tympanic membrane retraction 0
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