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Breath Test Detects Lung Cancer

U.S. researchers have developed a breath test that detects lung cancer. Researchers say the test is more sensitive than high-tech imaging, especially for distinguishing benign tumors from cancerous ones. When an X-ray scan of a patient's lungs reveals a nodule or tiny mass, the challenge for doctors is determining whether the growth is benign, or a sign of early stage cancer. Investigators say the breath analysis could help when used in conjunction with PET scans or other...

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