Are you worried about cancer?

Tests to screen for cancer, also called tumor markers, can give you an early alert to potential problems. Medical researchers have identified more than a dozen substances that are often found in abnormal levels when some types of cancer are present. While scientists have not discovered markers for every type of cancer, this comprehensive screening evaluates the levels of common tumor markers related to cancers such as liver, lung, testicular, prostate, stomach, gastrointestinal, colorectal, and pancreatic.