Hi: it sounds like your mom has a good treatment plan, but seeking a second opinion in a treatment plan is a good idea. I know I appreceiate having an oncologist who explains his reaoning to me and is willing to discuss stuff I find on line. As and added plus, he is a kind person. The first thing he says to me on an office visit, is "Hi Don, how is it going?" And he always asks me ,"what have you been doing for fun lately?"
Don M