Dear WORRIED: The first question is did your mother have a lymph node dissection (removal of a larger sample of lymph nodes) to determine if there are other positive nodes? This information would help determine whether she is eligible to participate in a clinical trial. The jury is still out in terms of the addition of taxol. A preliminary analysis is that there may be a small benefit to the addition of taxol in estrogen receptor negative patients. However, it is too soon to tell how this will play out - whether there will be any benefit to other subgroups or to the group as a whole. This is a controversial topic - one for which you will likely get multiple opinions. Four cycles of AC is standard treatment. You must remember, more is not necessarily better when dealing with chemotherapy. Benefits should outweigh toxicities.