Dj, to add to what Cathy said, brachytherapy is different than the IMRT because it utilizes a radioactive "seed" implanted at the tumor site. The other type of radiation therapy you mentioned (IMRT) is radiation developed in a machine. Once you have finished a daily treatment, there is no residual radiation.

Any treatment involving radiation will cause some similar side effects. I would consider any and all treatment options that offer the best long term results.

You haven't mentioned where he is being seen, We like to recommend second opinions at NCC hospitals, these are usually larger hospitals.

Mark, 21 Year survivor, SCC right tonsil, 3 nodes positive, one with extra-capsular spread. I never asked what stage (would have scared me anyway) Right side tonsillectomy, radical neck dissection right side, maximum radiation to both sides, no chemo, no PEG, age 40 when diagnosed.