PCa Commentary #187 – Liquid Biopsy – Circulating Tumor DNA (ctDNA): A Heads-Up Primer: Emerging clinical usefulness and a look to the future…but this is only a snapshot of the first steps of a remarkable technology.

  Circulating Tumor DNA (ctDNA):   In cancer patients fragments of DNA from tumor cells are found in the blood along with short stretches of DNA from healthy cells (cell-free DNA, cfDNA) shed during cell turnover. In early-stage disease the ctDNA fraction of...