Dear debbie2213: Without knowing the particulars of your friend’s situation, it is impossible to speculate on what the choices may be and how decisions were made as to the treatment.
Arimidex is a medication that suppresses
estrogenHormone replacement therapy in tumors that are
estrogenHormone replacement therapy positive. It would only have a role in tumors that are hormone receptor positive. Chemotherapy is directed at any and all cancer cells. Sometimes both are appropriate to a situation and sometimes one or the other would be the choice.