An ABC News report on a stool-based DNA test for colorectal cancer under FDA review features a patient whose reluctance about colonoscopy kept her from getting screened. She was ultimately diagnosed with colorectal cancer. People may not get colonoscopies because they have never discussed it with their physician or they may not have insurance that covers the procedure, said Dr. David Johnson. Johnson said he hopes the stool DNA test can play a "sizable role" in improving colorectal cancer screening rates, but said "the best screening test is still the colonoscopy."
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