[Lung cancer screening, what methods what results ?]

Lung cancers screening, what methods what results? Because lung cancers are the leading cause of death from cancer, because there is effective treatment for the early stages and because it is possible to target smokers, lung cancers screening is essential. Neither chest x-ray, sputum cytology, nor blood markers are useful for this screening. Only the low-dose chest scanner had demonstrated in two randomized studies with large numbers of heavy smokers or former smokers that it significantly reduces the specific mortality from lung cancers.