Idiopathic interstitial pneumonia or idiopathic interstitial pneumonitis: what's in a name?

We congratulate L. Kolilekas and co-workers on their closely argued plea to resolve semantic imprecision in a field that suffers from a surfeit of acronyms. We can only agree that the “idiopathic interstitial pneumonia” (IIP) label should be discussed forensically. Meaningful reappraisal of IIP terminology requires a major international initiative with, crucially, the presentation of arguments for proposed change to all group members with the …