I gave a great deal of thought to the "actual question"before i replied.I dont know many people on this site who would suffer as many recurrences as your mother without seriously questioning the treatment plan she has been undergoing.There are many combinations of treatment available,and she doesn't seem to have been offered any other option than surgery,and that is basically questionable,by any ones standards.

Easy or not ,another doctors viewpoint is needed,and i dont mean on the net.She needs to be seen at a ccc by a multidisciplinary team.