Dez,

I can't speak for everyone, but my experience with ENT's, and my dentist was that they took a look at (without blood tests, biopsy, or any other diagnostic tool), and knew it was cancer. The only one who missed it was GP, so if that many ENT's are looking at it and telling you it's not cancer, you need to dance a jig. The rest of us were not so lucky.

I realize this doesn't address your pain issues, and a lack of diagnosis of what the problem is really, is frustrating, but if I were you I would simply be counting my lucky stars that it is not cancer.

Tina
Diag: Aug. 13/12
T3N0M0
50% + glossectomy and bilateral radical neck dissection, removal of nodes zones I - V
Surgery October 11/12
Chemo/rad on hold due to clear margins and nodes
Sept 21/13 clear CT with anomaly thought to be the artery, being watched closely.
Dec 16/13 - anomaly confirmed artery, all clear
nickname: "get 'r done"
Plans: kick cancer's butt