A Kernel of Truth: Diacetyl, Popcorn Lung and E Liquids Dinner Lady It's official. Flavored e cigarettes cause permanent lung damage. And doctors are already seeing it happen. In the United States, a teenager developed something called popcorn lung after secretly vaping for three years. E Cigarette & Vaping Accidents Lawsuit Attorneys Stoy Law Group, PLLC. Banned Dangerous Vape Ingredients to Avoid in Your Vape Juice Does Vaping Cause Popcorn Lung? Africa Harm Reduction Alliance