The FDA announces its first authorization of fruit flavored e cigarettes intended for adult smokers. This major policy shift comes as teen vaping rates have dropped to a 10 year low and manufacturers have pushed Is Popcorn Lung Caused By Vaping? 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 Does vaping cause lung cancer? UT MD Anderson