A woman tested positive for colon cancer on an at-home test. Her doctor dismissed the result — then hospital tests confirmed a tumor. - Yahoo News

Christine Bronstein took a home colon cancer test after seeing blood in her stool. It was positive, but her doctor texted: "You don't have cancer :)"

Christine Bronstein at an event in 2015.Steve Jennings/Getty Images

• Christine Bronstein took a home colon cancer test after seeing blood in her stool. It was positive.
• Her doctor a… [+4042 chars]
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