Although it makes medical sense, this compound term is not a medical term in widespread use (it is far too long). It is either a joke or an attempt to create a very long word in order to gain an entry in the Guinness Book of World Records However, articles in medical books and magazines have used the term and it has occurred in medical records and on death certificates (maybe someone carrying on the joke or not realising it is an artificial term) It describes a distinct type of miner’s lung. The distinction from other types of miner’s lung is probably not helpful for the victim or their attending doctor