Circulating Tumor-Derived DNA

**Semantic type:** Nucleic Acid, Nucleoside, or Nucleotide

**Definition:** Neoplasm-derived DNA found in blood plasma and other bodily fluids that is not associated with cells.

**Synonyms:** - Cell-Free Circulating Tumor DNA - Circulating Tumor DNA - Circulating Tumor DNA - Circulating Tumor DNA - ctDNA - ctDNA - ctdDNA