Thank you both for the information you provided, it was very helpful.
I visited the Medicare web-site and they do mention that Radiation Treatments are covered under Part B. However, there is a note below that states (and I am paraphrasing) that the treatment may be more than Medicare covers (or something to that effect) and that I would be responsible for any charges that are in excess of what Medicare covers. Not too comforting, I must say, as my radiologist is talking about five CK treatments rather than one or the three that was originally mentioned, so I definitely need to find out about the Medicare rules before I proceed.
I have an MRI scheduled for Monday and a consultation with the radiologist on Tuesday, so will know more after that. The MRI was originally scheduled (along with a CAT scan and the preparation of the mask) for SRS on January 8. Since my last MRI was done in October, it doesn't seem likely that there will be much change, but you never know. My radiologist now believes there is no hurry to have the SRS done on Jan 8, so maybe now I fall into the "Watch and Wait" category. Will know more next week and will keep all informed.
My radiologist told me that my canal was short and fat (she says this is a good thing), and that about half the tumor was inside the canal and the other half was protruding into the liquid filled pontine angle. The cochlear is up against the tumor.
As a person used to making decisions, this condition has been surprisingly difficult to decide. I find I have run the gamut from micro-surgery to SRS to W and W and somewhere in between.
Thanks again for your comments and suggestions!
Rod