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A new way to screen for cancer

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Blood testing to detect early cancer may be closer to reality than ever before.

When it comes to most cancers, the sooner they’re found, the better. “Identifying cancer in its earlier stages offers improved chances for treating it before it can grow and spread,” says Dr. Brian Wolpin, director of the Gastrointestinal Cancer Center at Harvard-affiliated Dana-Farber Cancer Institute.

Unfortunately, there are not reliable tools to screen for most cancers. Examples of effective screening tests that do exist now include colonoscopies that look for polyps and early colorectal cancers, as well as imaging tests like mammograms for early signs of breast cancer and chest CT scans for localized lung cancer among former or current smokers.


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https://www.health.harvard.edu/cancer/a-new-way-to-screen-for-cancer

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