What is Popcorn Lung? Galaxy Vapes Inc. Do Geek Bars Have Diacetyl? EightVape Does Diacetyl in Vaping Cause Popcorn Lung? Clutch Vape E cigarettes can result in 'Popcorn Lung' Doctors have linked vaping to a rare, incurable lung condition called obliterative bronchiolitis, often referred to as popcorn lung. The disease permanently scars and narrows the lungs' airways, causing lifelong breathing problems. Canadian teen develops 'popcorn lung' like vaping illness, unlike U.S. patients