New medical research is raising concerns about possible links between vaping and bronchiolitis obliterans also known as popcorn lung, a rare and irreversible lung disease. Health experts say more long term Frontiers Pulmonary Toxicity and the Pathophysiology of Electronic Cigarette, or Vaping Product, Use Associated Lung Injury Clinical Progress Note: E cigarette, or Vaping, Product Use Associated Lung Injury MDedge A Closer Look at Vaping Associated Lung Injury: What You Can Do for Your Patients