Send us a Message

Submit Data |  Help |  Video Tutorials |  News |  Publications |  Download |  REST API |  Citing RGD |  Contact   


The Human Phenotype Ontology (HPO) is downloaded weekly from The file downloaded is considered the "last stable build" available for the ontology. For more about the HPO, view their website at

go back to main search page
Accession:HP:0000162 term browser browse the term
Definition:Posterior displacement of the tongue into the pharynx, i.e., a tongue that is mislocalised posteriorly.
Comment:Presumably, use of the suffix ptosis refers to the situation where the patient is supine, and the displacement is downward. Strictly speaking, the term glossoptosis indicates falling of the tongue and thus can also be forward displacement; however by convention it is only used for backward displacement. Glossoptosis may cause obstruction of the airway.
Synonyms:exact_synonym: Lingual retraction;   Retraction of the tongue
 broad_synonym: Posterior displacement of the tongue
 xref: MSH:D065710;   SNOMEDCT_US:3639002;   UMLS:C0267048;   UMLS:C4280678

show annotations for term's descendants           Sort by:

Term paths to the root
Path 1
Term Annotations click to browse term
  Human phenotype 0
    Phenotypic abnormality 0
      Abnormality of head or neck 0
        Abnormality of the head 0
          Abnormality of the face 0
            Abnormality of the mouth 0
              Abnormal oral morphology 0
                Abnormal oral cavity morphology 0
                  Abnormality of the tongue 0
                    Abnormal tongue morphology 0
                      Glossoptosis 0
paths to the root