M.
My situation was the reverse. My MRI was initially read as my having an AN. My symptom history did not correlate with that, and two separate experts did not think it was an AN. It could be nothing, it could be something else. If by chance it was an AN, my docs also said that it is slow growing and there is no need to rush to do something, so we will rescan you in a couple of months.
In your situation, you should probably have a neurosurgeon look at the MRI him/herself. Depending on the MRI facililty and depending on the "pics" they took it could very well be that that the MRI was not as clean as perhaps a Neurosurgeon would have liked. The quality of MRI's has a lot to do with the facility, the technicians, and even you as a person stuck in that tunnel. If there was a lot of movement by you, it could affect the quality of the scan.
So, if I were you, I would first inquire of your ENT or neurosurgeon, whether the Scan was a clean one. If not, you may have to be rescanned. If it was a clean scan, and no tumor appeared, then from my perspective, even though you may be having ear problems, at least it is not caused by a tumor. But as you see from the people in this forum, no two situations are the same, and no two people are the same.....but at the very least, we are all united here to try to help each other.
Evan