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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:Double-layered patella
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Accession:HP:0031174 term browser browse the term
Definition:An anomaly of the patella characterized by two layers visible on lateral knee X-ray such that one layer is in front of the other in the sagittal orientation (See Figure 2A and 3B of PMID:12966518). This finding persists into adulthood.
Comment:This feature can be observed in Multiple epiphyseal dysplasia type 4. It is distinct from bipartite patella, which is characterized by an unfused accessory ossification center at the superolateral aspect of the patella. Double layer patella appears to be caused by the presence of several patellar ossification centers.



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Term paths to the root
Path 1
Term Annotations click to browse term
  Human phenotype 0
    Phenotypic abnormality 0
      Abnormality of limbs 0
        Abnormality of the lower limb 0
          Abnormality of lower limb joint 0
            Abnormality of the knee 0
              Abnormal knee morphology 0
                Abnormal patella morphology 0
                  Double-layered patella 0
Path 2
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 joint morphology 0
              Abnormality of lower limb joint 0
                Abnormality of the knee 0
                  Abnormal knee morphology 0
                    Abnormal patella morphology 0
                      Double-layered patella 0
paths to the root