When Ken's biopsies came back positive after his treatments there were areas around his windpipe that lit up. The MO had him go to a thorasic surgeon who said he normally wouldn't even do a biopsy but they wanted to make sure it wasn't cancer (if it was, the idea of total glossectomy would have been re-evaluated to even be worth it). The biopsy on the windpipe ended up being sarcoidosis.