Hi J,
Without a biopsy, it cannot be conclusively proved that it is OC. Swollen lymph nodes, different tonsil sizes etc. may be due to a bad infection.
As Paul mentioned, FNAB is an option and I fully agree with Christine - once a surgeon cuts there is no putting it back. So go for a CCC, all the best for results and yes there are long term survivors who will help you when needed.