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New test could sharply reduce risky, costly lung cancer biopsies
Washington Post

When a suspicious lesion shows up in the lungs on a CT scan, the first thing your doctor wants to know is whether it’s cancerous. A specialist will pass a long, thin bronchoscope into your airway in the hope of grabbing a few cells of the growth so they can be examined under a microscope.

But some of these lesions or nodules are deep in the small branches of the lungs, out of reach of the bronchoscope, which is about the diameter of a pen. Other times, the results are inconclusive.

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