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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

Term:Thin vermilion border
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Accession:HP:0000233 term browser browse the term
Definition:Height of the vermilion of the medial part of the lip more than 2 SD below the mean, or apparently reduced height of the vermilion of the lip in the frontal view. The vermilion is the red part of the lips (and confusingly, the vermilion itself is also often referred to as being equivalent the lips).
Comment:The vermilion is the red part of the lips, and the vermilion border is the rim of paler skin that demarcates the vermilion from the rest of the skin of the face.
Synonyms:exact_synonym: Decreased volume of lip;   Decreased volume of lip vermillion;   Thin lips;   Thin vermillion
 related_synonym: THIN VERMILION BORDERS
 alt_id: HP:0000213
 xref: SNOMEDCT_US:301348000;   UMLS:C0578038

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  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
                  Abnormal lip morphology 0
                    Thin vermilion border 0
                      Thin lower lip vermilion 0
                      Thin upper lip vermilion 0
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