HPV-associated head and neck cancer blood test shows promise as a test to replace tissue biopsy December 2, 2021 HPV-associated head and neck cancer blood test shows promise as a test to replace tissue biopsy Liquid biopsy test developed at Mass Eye and Ear was more accurate, faster and less costly than conventional methods. ... Read more about HPV-associated head and neck cancer blood test shows promise as a test to replace tissue biopsy