Lung cancer screening is a method to try and detect lung abnormalities which may be the early stages of lung cancer. It is primarily for patients with a smoking history where if an early lung cancer is detected, then this can be targeted for treatment.

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Studies show that early detection of lung cancers lead to a much better outcome compared to when lung cancers are detected later, when they may have spread or have started to cause other problems.

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Often early lung cancers have little or no symptom and are often not visible on chest X-rays. Therefore a CT scan is used to detect for any abnormalities.