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 Is it True That Vaping Can Cause Popcorn Lung? Freeman Vape Popcorn Lung: A Dangerous Risk of Flavored E Cigarettes American Lung Association Life threatening bronchiolitis related to electronic cigarette use in a Canadian youth CMAJ