Experts show that flavored e cigarettes cause irreversible lung damage. A U.S. teen developed "popcorn lung" after secretly vaping for 3 years a permanent, life altering disease. Officially known as bronchiolitis obliterans, the Experts say that flavored e cigarettes can cause irreversible lung damage. A U.S. teen developed "popcorn lung" after secretly vaping for 3 years a permanent, life altering disease. Officially known as bronchiolitis obliterans, Vaping: Get the Facts. Protect Your Future Anne Arundel County Health Department Is Vaping Giving You Popcorn Lung? Popcorn Lung': Vapers at Risk of Irreversible Disease, Experts Warn : ScienceAlert