Hi
From what I can tell, it’s “medium”. See
It is the other aspects of the score that probably will affect the approach that they take, so if it is nicely on the surface, nothing deep or dangerous then open surgery may be an option. If it is deeper or near vital stuff, the score goes up and that may tend towards radiotherapy as the better option.
Just ask the doc why they are recommending the route(s) they do.
Ask anything you need.
Richard