Screening for lung cancer: are we there yet?

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Purpose of reviewIn lung cancer screening with low-dose spiral computed tomography (LDCT), the proportion of stage I disease is 50–85%, and the survival rate for resected stage I disease can exceed 90%, but proof of real benefit in terms of lung cancer mortality reduction must come from the several randomized trials underway in Europe and in the USA. Our purpose is to update the readers on recent progress in medical knowledge in this field.Recent findingsRelevant novelties regarding technical and collateral aspects of lung cancer screening have been made available, covering the performance of detection systems and nodule evaluation protocols, means to increase cost-effectiveness, insight into the biology of lung cancer, promotion of minimally invasive and lung-sparing surgical options, effects of screening on smoking habits and early follow-up findings in one randomized trial of LDCT vs. clinical review.ConclusionEarly follow-up data suggest that the effect of screening with LDCT on mortality might be smaller than expected, but definitive follow-up data are still awaited from all ongoing randomized trials. Lung cancer screening research is yielding a relevant body of medical knowledge that will be beneficial for other smoking-related diseases and contribute to a better understanding of lung cancer biology.

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