Created by Guardant Health, the blood test, known as Shield, was able to detect 83% of colorectal cancers in studies but only 13% of dangerous polyps. Colonoscopies find approximately 95% of these ...

An endoscopy can help healthcare professionals diagnose stomach cancer. The test uses a camera to see the stomach and help with taking a biopsy of the tissue. An endoscopy is a minimally invasive ...