There are many new developments in cancer research. One of the exciting diagnostic tool in development is new blood tests designed to detect cancer.
New blood test can detect 50 types of cancer
"In a paper published in the leading cancer journal Annals of Oncologytoday (Friday), researchers report that the test accurately detected cancer, often before any symptoms arose, while having a very low false positive rate. The test also predicted where in the body the cancer is located with a high degree of accuracy, which could help doctors choose effective diagnostic tests.
GRAIL, Inc. (California, USA), the company developing and funding the research, has now made the multi-cancer early detection test available in the USA by prescription only, and to complement other, existing screening methods such as those for breast, cervical, prostate, lung and bowel cancers."
https://www.news-medical.net/news/20210625/New-blood-test-can-accurately-detect-50-types-of-cancer-before-symptoms-emerge.aspx
Experimental Blood Test Detects Cancer up to Four Years
"Kun Zhang, a bioengineer at the University of California, San Diego, and his colleagues focused on developing a test for five of the most common types of cancer: stomach, esophageal, colorectal, lung and liver malignancies. The test they developed, called PanSeer, detects methylation patterns in which a chemical group is added to DNA to alter genetic activity. Past studies have shown that abnormal methylation can signal various types of cancer, including pancreatic and colon cancer."
https://www.scientificamerican.com/article/experimental-blood-test-detects-cancer-up-to-four-years-before-symptoms-appear/
Currently Available Blood Tests
Currently available blood tests are listed in this Mayo article: https://www.mayoclinic.org/diseases-conditions/cancer/in-depth/cancer-diagnosis/art-20046459
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