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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:Aplasia/Hypoplasia of the cerebral white matter
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Accession:HP:0012429 term browser browse the term
Definition:Absence or underdevelopment of the cerebral white matter.
Synonyms:exact_synonym: Absent/small cerebral white matter;   Absent/underdeveloped cerebral white matter
 xref: UMLS:C4021844

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Term paths to the root
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Term Annotations click to browse term
  Human phenotype 0
    Phenotypic abnormality 0
      Abnormality of the nervous system 0
        Abnormal nervous system morphology 0
          Morphological central nervous system abnormality 0
            Abnormality of brain morphology 0
              Abnormal forebrain morphology 0
                Abnormal cerebral morphology 0
                  Abnormal cerebral subcortex morphology 0
                    Abnormal cerebral white matter morphology 0
                      Aplasia/Hypoplasia of the cerebral white matter 0
                        Cerebral white matter agenesis 0
                        Cerebral white matter hypoplasia 0
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