Hi - I would agree with Christine - do take comfort in the negative report but also see one more ENT, and ask them what they think. I would keep pushing until you get an answer or you can wait and see If it gets bigger. Some tumors are very slow growing some are not. I'd had mine for almost 4 years before I was dx'd, others have tiny lesions that are highly aggressive and move quickly. Based on the fact you've had it for 6 months with little change it sounds like what ever it is is slow moving. So you're not dying though I do understand your panic.

It's too bad this is out of pocket for you.