I don't know as much as many but I will share this. My fine needle aspiration came back negative on a lymphnode so my ENT scheduled to take it out and check it just in case. This was after taking antibiotics, and doing blood work to rule out other things. We took it out and it was cancerous. After that though it made the CT and Pet scans very hard to read because of all the inflamed tissue. I would try to get the PET scan first and also put a rush on the biopsies. If it's not cancer you can set your mind at ease, if it is it's like everyone else said, Time is of the essence. I'm also a firm believer in a cancer team. Good luck to you. Lee