Yes, there was a case report. First of all, I would like to say the electronic cigarette has been available in Europe for the last 10 years. If there were any harmful results or effects on the lungs, it would appear in our scientific literature.
If you look back at this report, of course popcorn lung did happen in the industry manufacturing popcorn. We haven't seen much popcorn lung in the cinemas, although they're exposed to diacetyl.
If you look at this report, it's a very bad report. I don't understand why the editor accepted to publish the thing because they start by talking about hypersensitivity pneumonitis, like farmer's lung, for example, and then they conclude that it is a bronchiolitis obliterans. It's illogical. They didn't have a lung biopsy to document the case. We have to be extremely careful about these sorts of reports, which are very alarming.