Frontiers Review of quantitative and functional lung imaging evidence of vaping related lung injury Vaping an overview ScienceDirect Topics Experts warn that flavored e cigarettes can cause irreversible lung damage, as seen in a U.S. teenager who developed "popcorn lung"a severe and permanent condition called bronchiolitis obliteransafter secretly vaping for three years. ICYMI: How e cigarettes can break your heart Physicians for a Smoke Free Canada