This is also my question. Had I/O about 3 weeks ago for 3.5cm Seminoma with LVI. I have a meeting next Tuesday with the Onco docs. Trying to get info on radiation and Carbo to see which is the better option. From what I have read on this site, radiation is falling out of favor due to long term side effects, but then again Chemo scares the hell out of me. Not sure which way to go.