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Blood test for early diagnosis of lung cancer

Blood test for early diagnosis of lung cancer
The test can identify traces of the cancer in the blood two years before the disease can be identified by CT scan.

The test can identify traces of the cancer in the blood two years before the disease can be identified by CT scan.
A study conducted by the INT and published in the Journal of Clinical Oncology in January 2014 has shown that a blood test can be used in conjunction with computed tomography (CT) to significantly reduce the percentage of false positive findings obtained with spiral CT of the lung. The results were also presented in San Diego, California, at the joint 2014 conference of the American Association for Cancer Research and the International Association for the Study of Lung Cancer. The paper’s presenter and author was Gabriella Sozzi, Head of the Unit of Cancer Genetics at INT.
Spiral CT of the lung, using a low dose of X-radiation, is increasingly employed as a screening tool to detect early lung cancer in heavy smokers. However the examination reveals many lung nodules and only a fraction turn out to be lung cancer. The new test detects microRNA molecules circulating in the blood that are produced by the cancer, and can help decide whether a suspicious lung nodule found on CT should be further investigated and possibly removed by surgery.

 




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