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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 cavity
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Accession:HP:0033655 term browser browse the term
Definition:A gas-filled space, seen as lucency or low-attenuation area, within a nodule, mass or area of parenchymal consolidations. It has a clearly defined wall over 4 mm thick.
Comment:A cavity has been defined in the radiology literature as (pathologically) a gas-filled space within a zone of pulmonary consolidation or within a mass or nodule, produced by the expulsion of a necrotic part of the lesion via the bronchial tree and (radiographically) a lucency within a zone of pulmonary consolidation, a mass, or a nodule; hence, a lucent area within the lung that may or may not contain a fluid level and that is surrounded by a wall, usually of varied thickness. A pulmonary cavity can be caused by microorganisms (bacteria including mycobacteria, funghi, viruses, parasites), malignant processes or autoimmune disorders.
Synonyms:exact_synonym: Pulmonary cavern;   Pulmonary cavitation

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  Human phenotype 21805
    Phenotypic abnormality 21794
      Abnormality of the respiratory system 2500
        Abnormal respiratory system physiology 2490
          Abnormal respiratory system morphology 1635
            Abnormal pulmonary thoracic imaging finding 158
              Pulmonary cavity 0
                Cavitating pulmonary mass 0
                Cavitating pulmonary nodule 0
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