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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:Pulmonary Langerhans cell histiocytosis
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Accession:HP:0034769 term browser browse the term
Definition:Accumulation of monoclonal CD1a-positive Langerhans cells in the bronchioles and alveolar interstitium that can cause damage to the lungs.

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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 respiratory system 0
        Abnormal respiratory system physiology 0
          Abnormal respiratory system morphology 0
            Abnormal lung morphology 0
              Abnormal pulmonary interstitial morphology 0
                Pulmonary Langerhans cell histiocytosis 0
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