Circulating tumor DNA

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Circulating tumor DNA
TermCirculating tumor DNA
Short definitioncirculating tumor DNA - (pronounced) (SER-kyoo-LAY-ting TOO-mer.
TypeCancer terms
SpecialtyOncology
LanguageEnglish
SourceNCI
Comments


circulating tumor DNA - (pronounced) (SER-kyoo-LAY-ting TOO-mer. . . ) Small pieces of DNA that are released into a person's blood by tumor cells when they die. A blood sample can be used to look for and measure the amount of circulating tumor DNA and to identify specific mutations (changes) in the DNA. Circulating tumor DNA is used as a biomarker to help diagnose some types of cancer, plan treatment, or find out how well treatment is working or if the cancer has come back. Also called ctDNA

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