Liquid biopsy tests may someday upend screening as we know it. The promise of broad screening employing “multi-cancer detection” has spawned consortia and inspired enthusiastic opinion articles.
For more than a year before her stage 4 lung cancer was found, 35-year-old Alisa Secaida, a never-smoker and a physically active Southern Californian, had been experiencing a persistent cough and, increasingly, fatigue.
