Kendall, sorry to hear of Tom Rowe's cancer, glad to hear it isn't fatal. Help him through this. My lady friend had cancer of the thyroid, also usually not fatal, but it terrified her none the less and the fear was realistic since little c's can become big C's.
Ordinarily I would advise against litigation but the foot dragging on the part of your ENT is inexcusable. This same woman was told that the apendicitis which she needed emergency surgery for was "irritable bowel syndrome". The medicos declined to have her scanned and relied on an X-ray!
She is lucky. We were high up in the Rockies at the time of the emergency. Our local docs blew it.