The vast majority of these lesions are going to be benign, so you can't simply assume it's a cancer and send them to surgery. Lung cancer is considered one of the deadliest cancers, largely because it is typically not detected in the early stages, when it is most curable. Usually that's a serendipitous finding when the patient is having surgery for another reason. Occasionally, it might show up on a chest X-ray. And on the rare occasions it does turn up, it can be treated for a cure.
People have lot of trouble with it.
It affects your life enormously. For decades, there has been a desire to find a screening tool for lung cancer. A new scanning technique can detect lung cancer while it is still in the early, curable stage. More than one-fifth of patients who view their lung scans actually quit smoking. Researchers are still unsure about which populations should get the lung scans and how often they should be given.