It it unbelievable how many people involved in the rescue and clean up efforts were diagnosed with sarcoidosis in the time after the 9/11 attacks in the WTC area.
This is a link of the PBA website that highlights all of the people that got sick working on the site. Look how many with sarcoidosis.
I called the PBA in NY and spoke with the person who compiled the list and yes the list is mostly police officers or detectives, there are some civilians on there and one firefighter. The Fire dept has their own list.
M doctor in works out of the Mt Sinai and he is the one that told me there was a spike in sarcoids cases as a result of world trade center rescue working the site. I thought it was interesting because this might support evidence that sarc may be environmental. Not to say it isn't passed in the genes or to debunk any other theory because there could be more than one.
Check out this link as well, I believe it was written by a sarcoid patient being treated by Dr. Teirstein