Laser Destroys Cancer Cells Circulating in the Blood

Researchers have developed a technology that uses a laser beam to detect and destroy tumor cells in the veins of patients with melanoma, a deadly form of skin cancer. The research team was able to kill a high percentage of the cancer-spreading cells, in real time, as they raced through the veins of the participants. If developed further, the tool could give doctors a harmless, noninvasive, and thorough way to hunt and destroy cancer cells before those cells can form new tumors in the body.