Hi Marreealso
Perhaps make an appointment to Contact breast care nurse for more information ...a must to explain the biopsy result
If diagnosed as DCIS Hormone positive and your cancer biopsy result was a low grade usual therapy is for hormone estrogen blockers to prevent estrogen from driving new growth of cancer after surgery
Higher grades do reguire radiation and or chemo option for invasive dcis diagnosis or margins were not clear
If you are hormone positive and HER2 positive Chemo is the standard treatment
Other stage cancers can have radiation and or chemo to mop up and prevent growth of new cancers after surgery as well as hormone blockers.
cancers reproduce at faster rate Stage 2 3 and stage 4 can require greater use of chemo