Is there a relation between heavy alcohol drinking and lung cancer?

Yes, kinda: Kinda. Heavy alcohol drinkers often ate heavy smokers, and/or don't take good care of themselves, have other illnesses or diseases that weaken immunity to infection, inflammation, and tumors.

Yes: Heavy alcohol use is known to diminish immunity and the ability to clear carcinogenic material from the bronchial tubes. Heavy drinkers are more likely to get cancer and have a worse prognosis. Smoking is the largest associated factor. Modest alcohol is acceptible but may be harder to acheive than complete abstinence. Yes, staying completely away from alcohol is the best for early cancer treatment.

No direct relation: I'm not aware of any direct link between alcoholism and lung cancer. Heavy alcohol use has been implicated in mouth/throat cancer, liver cancer and stomach/bowel cancer, all of which can metastasize to the lungs.

No causal : Relationship. The association of people living unhealthy life styles may exist, but it is the tobacco and its adddiction that leads the preventable causes of lung cancer.

None known.: No direct link between alcohol consumption and lung cancer. However, many heavy drinkers are heavy smokers, or drink in areas where there is a lot of second hand smoke, such as bars, betting tracks, etc... And of course there is a direct link between smoking and second hand smoke and lung cancer. For more info: http://bit.Ly/ygfoko.