# OnCo record cfdna (term). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)". Whole corpus: https://onco.cc/api/v1/onco.nt
@prefix schema: <https://schema.org/> .
@prefix onco: <https://onco.cc/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://onco.cc/terms/cfdna/>
  a schema:DefinedTerm ;
  onco:kind "term" ;
  schema:identifier "cfdna" ;
  schema:name "Cell-free DNA (cfDNA)"@en ;
  schema:alternateName "cfDNA"@en, "cell-free DNA"@en, "circulating cell-free DNA"@en, "plasma DNA"@en, "liquid biopsy"@en, "plasma NGS"@en, "plasma genotyping"@en, "blood-based genotyping"@en, "tissue-informed"@en, "tumour-informed"@en, "tumor-informed"@en, "tumour-naive"@en, "tumor-naive"@en, "fragmentomics"@en, "liquid biopsies"@en ;
  schema:description "Short pieces of DNA floating in the blood, shed by dying cells all over the body. Most is from normal cells; the small tumour-derived fraction (ctDNA) is what liquid biopsies fish out."@en ;
  schema:url <https://onco.cc/terms/cfdna/> ;
  schema:dateModified "2026-09-09"^^xsd:date ;
  schema:sameAs <https://en.wikipedia.org/wiki/Cell-free_fetal_DNA> ;
  schema:citation <https://en.wikipedia.org/wiki/Cell-free_fetal_DNA> ;
  onco:related <https://onco.cc/terms/ctdna/>, <https://onco.cc/terms/mrd/>, <https://onco.cc/pathways/clonal-haematopoiesis/>, <https://onco.cc/terms/core-needle-biopsy/> ;
  onco:sections <https://onco.cc/fronts/diagnostics/> ;
  onco:technologies <https://onco.cc/technologies/liquid-biopsy/>, <https://onco.cc/technologies/mced/>, <https://onco.cc/technologies/fragmentomics/>, <https://onco.cc/technologies/mrd-testing/> .