Doctors Report First Documented Case of 'Popcorn Lung' From Vaping Popcorn Lung A Hidden Danger of Vaping , We are now seeing a serious lung disease called Popcorn Lung (Bronchiolitis Obliterans) in some young people using e cigarettes and flavored vapes., Does vaping cause popcorn lung? Allen Carr's Easyway Canadian teen develops 'popcorn lung' like vaping illness, unlike U.S. patients Popcorn Lung: The Deadly Secret in Your Vape! Did you know that the sweet, tempting flavor in your e liquid could be hiding a chemical called Diacetyl? This chemical, which tastes