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HUMAN PHENOTYPE - ANNOTATIONS

The Human Phenotype Ontology (HPO) is downloaded weekly from http://compbio.charite.de/hudson/job/hpo/lastStableBuild/artifact/ontology/release/hp.obo. The file downloaded is considered the "last stable build" available for the ontology. For more about the HPO, view their website at http://www.human-phenotype-ontology.org/.
Term:Thin toenail
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Accession:HP:0012746 term browser browse the term
Definition:Toenail that appears thin when viewed on end.
Comment:No objective standard for nail thickness could be identified. An unsupported claim suggests that nails are 0.5 mm in females and 0.6 mm in males (http://www.emedicine.com/orthoped/topic421.htm). Thin nails are usually brittle, may easily fray, or break at the free edge. Thin nails usually grow slowly but this definition does not require slow growth of the nail. Note that the term koilonychia is an abnormal shape of the fingernail where the nail has raised ridges and is thin and concave. Since it include other characteristics besides thin nails, it should not be used to indicate this. The affected digits should be specified.
Synonyms:related_synonym: THIN TOENAILS
 alt_id: HP:0040038
 xref: UMLS:C3554113


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  Human phenotype 0
    Phenotypic abnormality 0
      Abnormality of the integument 0
        Abnormal skin adnexa morphology 0
          Abnormal nail morphology 0
            Abnormal toenail morphology 0
              Thin toenail 0
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