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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:Abnormal sternal ossification
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Accession:HP:0011863 term browser browse the term
Definition:Any anomaly in the formation of the bony substance of the sternum.
Comment:The sternum develops from two cartilaginous bars, situated one on either side of the median plane and connected with the cartilages of the upper nine ribs of its own side. During development, the two cartilaginous bars fuse with each other to form the cartilaginous sternum. This in turn is ossified from six centers: one in the manubrium, four in the body of the sternum, and one in the xiphoid process.
Synonyms:exact_synonym: Abnormal maturation of breastbone;   Sternal ossification center abnormalities;   Sternal ossification centre abnormalities
 alt_id: HP:0006624
 xref: UMLS:C1860243

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Term Annotations click to browse term
  Human phenotype 0
    Phenotypic abnormality 0
      Abnormality of the musculoskeletal system 0
        Abnormality of the skeletal system 0
          Abnormal skeletal morphology 0
            Abnormal bone structure 0
              Abnormal bone ossification 0
                Abnormal enchondral ossification 0
                  Abnormal sternal ossification 0
                    Absent sternal ossification 0
                    Decreased number of sternal ossification centers 0
                    Fused sternal ossification centers 0
                    Large sternal ossification centers 0
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