I can only comment based on my experience and that within our institution. To date we have seen approximately 16 tumors that required removal after prior radiation. These cases were more challenging due to the scarring effects of radiation. Microsurgery to remove a tumor that has regrown after prior surgery can also be more challenging due to scarring. Each case is highly individual, but the risks do increase with multiple treatments of any kind.
Patients often ask if the nerves are going through the tumor or wrapping around it.
I can state from experience that there is presently no imaging technique that will show us this. We can only determine the exact location of the nerve upon surgical investigation . As a patient, you must explore all of your options and never feel forced into a premature decision. Your relationship with your physician is of utmost importance, and your ultimate care should be in the hands of a highly experienced team that is dedicated to the careful treatment of these delicate tumors. I often feel that the decision-making process is the most difficult for my patients, and that their recovery is more taxing emotionally than physically, regardless of their treatment choice.