My take is different. I’m not an MD.
I would have asked the second audi why she was looking at me as if I was under a death sentence and what it was she wanted the ENT to screen for. You can still call back and ask those two questions.
If it seems there is good reason for concern, then I say go to the ENT, but if the recommendation there is for an MRI, I’m not proceeding with it without getting some more answers to more questions, especially if you’re in the US and have no insurance, insurance with a high deductible you won’t meet, or there is pushback from the insurance company on doing the MRI, for which they may well require preauthorization and documentation for the reason. I’m asking the ENT: What are you looking for? Why do you think it may be there? What are the chances it’s there? How will treatment change if you find it?
The facts that: acoustic neuromas are considered uncommon to rare in rate of occurrence, and most are benign, your hearing is not changing, and you have no pain all make an aggressive acoustic neuroma unlikely in your case. Not impossible. Unlikely. The high cost (well into four digits) for an MRI, the overuse of MRIs (often done primarily to protect MDs from liability claims if something rare is missed, and also recommended by MDs in networks that have invested a lot in MRI technology and need to pay the bills, the fact that most MRI screenings turn up nothing that would benefit from treatment based on the MRI and also can lead to unnecessary follow-up tests which may cause medical harm at additional expense all suggest that if I go into the office of an ENT who is new-to-me and the first thing he or she wants to do is run an MRI, I’m going to question it.
Ultimately it’s your decision and your roll of the dice, either way. I don’t know your situation, and the audis’ concern may be warranted. I can live with some risk and don’t do MRIs as fishing expeditions for the benefit of health care providers.