The story of my daughter

Hi, my  daughter  was   diagnosed  with  cancer  in  a  leg  muscle  a week  ago, after  being  investigated   for  many  oteher  things  that  she  did  not   have  including  a  fracture, therefore time  was  wasted. She  is  39 years  old  and  has  previously had  cervicle  cancer   which  was  treated   with radiotherapy.  . She  is  now  booked  in  for  4  cycles  of  chemotherapy   ,but  is  being  told  that  if  it  doesn't  work that's  it , end  of  story. can  anyone  explain  to  me  why  this  is  and  why  surgery   isn't  being  mentioned,  we  cant  give  up.