Popcorn lung: Causes, symptoms, and treatment 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 Popcorn Lung (Bronchiolitis Obliterans): Causes & Treatment Is Popcorn Lung Caused By Vaping? Lungs After Smoking: Understanding Popcorn Lung from Vaping