Dr. Matthew Stanbrook and Dr. Andreas Laupacis discuss the case of a 17-year old who contracted bronchiolitis obliterans, or popcorn lung, from vaping of e-cigarettes. This novel pattern of pulmonary disease associated with vaping appears distinct from the type of alveolar injury predominantly reported in the recent outbreak of cases of vaping associated pulmonary illness in the United States. The case is published in CMAJ. They also discuss lack of regulation by Canadian government related to electronic cigarettes. A linked editorial authored by Dr. Stanbrook is published in CMAJ.Dr. Matthew Stanbrook is deputy editor at CMAJ and respirologist at Toronto Western Hospital. Dr. Andreas Laupacis is editor-in-chief of the Canadian Medical Association Journal.NB: this conversation reflects the latest evidence available at the time of the recording (Monday November 11, 2019).To read the research case report published in CMAJ: www.cmaj.ca/lookup/doi/10.1503/cmaj.191402To read the editorial published in CMAJ: www.cmaj.ca/lookup/doi/10.1503/cmaj.191503Podcast transcript: https://www.cmaj.ca/transcript-191503-----------------------------------Subscribe to CMAJ Podcasts on Apple Podcasts or your favourite podcast app. You can also follow us directly on our SoundCloud page or you can visit www.cmaj.ca/page/multimedia/podcasts.