Hi @paxiled so sorry to hear about your uncle. Sometimes it is observed that certain types of alcoholic beverages like heavy consumption of beer and hard liquor is found associated with an increased risk of developing lung cancer.
Secondly, it might also happen that is it is because of genetic that you carry from your forefathers you never know the reason behind it could be many. So proper treatment is should be down now. Plus there are preventive measure as well for lung cancers you should consider it.
Hi there. We're sorry anyone in your family has received this tough diagnosis. How are they doing? Here's an article from the American Cancer Society that goes over 'other' reasons lung cancer happens in non smokers. https://www.cancer.org/latest-news/why-lung-cancer-strikes-nonsmokers.html Radon gas is a big one that is very common in our environment. Please let us know how it is going.
Yes, it is. There are other toxins that can cause mutation, such as asbestos. It's also theoretically possible, though difficult to do, got get it from secondhand smoke. A fireman could possibly get it from being around a lot of fires, because of the chemicals that get in the lungs. It's not common, but it is possible.