A recent case involving a U.S. teenager who developed Bronchiolitis Obliterans, commonly called popcorn lung, after three years of secretly vaping has raised serious concerns about the risks of e cigarettes. This irreversible Does vaping cause lung cancer? UT MD Anderson Does Vaping Cause Popcorn Lung? Does vaping cause popcorn lung? Cancer Research UK Lungs After Smoking: Understanding Popcorn Lung from Vaping Vaping Safety, Smoking, Dangers, Pros, Cons, Debate, E cigarettes, & Tobacco Britannica