Vaping and Popcorn Lung: What You Need to Know About a Hidden Risk 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 E Cigarette Use, Small Airway Fibrosis, and Constrictive Bronchiolitis NEJM Evidence 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