FDA approves DNA screening test for colon cancer

The US Food and Drug Administration approved a new at-home stool test to screen for colon cancer that's better at detecting cancer than currently used tests that check for hidden blood in the stool. Called Cologuard, it's the first non-invasive test to detect the presence of DNA mutations, as well as blood, that could indicate cancerous growths or precancerous polyps. Barry Berger, clinical instructor in pathology at Brigham and Women's Hospital, is a senior author. Andrew Chan, associate professor of medicine at Massachusetts General Hospital, is quoted.

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