Pulmonary imaging key to diagnosing vaping related lung damage Lung injuries should be a warning about vaping's risks American Heart Association Vaping and Popcorn Lung: Separating Fact from Fiction Medic Pro Health experts warn that flavored e cigarettes may lead to permanent lung damage. A U.S. teenager was diagnosed with "popcorn lung" after covertly vaping for three years, resulting in a lifelong, debilitating condition.