Hi Sueh and welcome to this forum .....
Although I did not have regrowth from a radiated tumor, I did experience regrowth from surgery. I decided since regrowth is very uncommon, I would seek out the best care I could find. I went to Drs. Friedman and Schwartz at House Ear Clinic in LA for my second surgery, which was four years ago. So far no further regrowth so I am a happy camper!
Dr. Rick Friedman (neuro-otolaryngologist) is now at USC/Keck Med Center and Dr. Marc Schwartz (neurosurgeon) is still at House. Both of them are excellent, highly experienced AN surgeons.