What is the primary purpose of a liquid biopsy?

The primary purpose of a liquid biopsy is to detect cancer markers in blood samples. Liquid biopsies are a minimally invasive diagnostic tool that analyzes components found in body fluids, primarily blood, to identify circulating tumor cells, cell-free DNA, or specific biomarkers associated with cancer. This method allows for the early detection of tumors, tracking of cancer treatment response, and monitoring for recurrence. By analyzing these cancer markers, healthcare providers can gain important insights into the presence and progression of cancer, facilitating more personalized treatment approaches without the need for invasive procedures associated with traditional tissue biopsies. This is particularly valuable in oncology, as it allows for continuous monitoring of the disease with lower risk and discomfort for patients.