Seattle has some really outstanding medical Doctors including Dr Backous. Other Doctors that i would consider seeing would be Dr. Sandra Vermeulen of Seattle for an evaluation for radiation options. She really takes the time to explain everything.
I persinally think very highly of her. I'd also consider an evaluation with Dr Charles Mangham of The Seattle Ear Clinic. He's very experienced and well known within the medical community of Seattle. I think there are some entries under the Doctor section on this site regarding Dr. Mangham. I
Dr Timothy Steege is a neurosurgeon that teams up with Dr Mangham during surgeries, but also does radiation. Again, I think very highly of the above doctors, I am sure that that they would be of help as you explore all of the options available to you.
Please feel free to email me off list.
Raydean