Hi Paul and Lynne,
I have to agree with others that it would be good for your doctor to order another MRI at this point. You mentioned that your 2004 MRI was done with contrast, but I believe it's also important for the MRI to be done with a focus in the IAC (internal auditory canal).
I also have to agree with what others have said here in regards to ENT's being apprehensive about considering AN's as the source of many AN-like symptoms. Whether it be by either their lack of experience with AN's, or just a hesitancy to mention this as a possible diagnosis, I had this exerience with two different ENT's that I saw over the course of a year before I was properly diagnosed.
My initial symptom was fullness in the ear, followed about 6 months later by tinnitus. I consulted with both ENT's at the oneset of the ear fullness, and again when I got the tinnitus. Both did hearing tests at the first consultation and again 6 months later. (I had gone to see two hoping at least one could find a reason for my symptoms.) I mentioned to both at the 6 month visit that maybe it was an acoustic neuroma, since I had started doing research. BOTH of them responded that it couldn't be because my hearing was still perfect!
It was only by talking to my primary care physician that I was able to get an MRI ordered. She initially thought it might be Meniere's, but when I presented her with my packet of AN research (which she appreciated), she felt strongly about the MRI, which revealed a 1.6 cm AN. (Needless to say, both ENT's were shocked when I shared the news with them - which I did in an effort to save someone else from having a similar experience.)
I really hope that you will be able to get another MRI, and also really hope that it doesn't turn out to be an AN. But either way, know that you have found a great support system here.
All the best,
Nancy L
(Jan - I'm a little late for my nap today because I was enjoying reading the 10 page thread that starts with your BAHA pics! I may have more questions for you and other BAHA wearers out there - but that will be another topic!)