Lumpectomy

A lumpectomy removes the tumor — the 'lump' — plus a surrounding margin of normal-looking breast tissue. The goal is to take out the cancer completely while leaving as much of the breast as possible. This contrasts with a mastectomy, which removes the entire breast. The term 'breast-conserving surgery' is often preferred in clinical settings because it better reflects the intent of the procedure.

For many women with early-stage breast cancer — and for some with DCIS — lumpectomy is just as effective as mastectomy in terms of long-term survival. This is supported by decades of research, including landmark randomized trials that demonstrated equivalent outcomes when lumpectomy is followed by radiation therapy to the remaining breast tissue. The radiation is an important part of the treatment: it targets any cancer cells that may remain in the breast tissue after surgery, significantly reducing the risk of local recurrence.

Whether a lumpectomy is the right choice depends on factors including tumor size relative to breast size, tumor location, whether the cancer is in multiple areas of the breast, your preference for breast preservation, and your ability to receive radiation therapy. Your surgeon will discuss what 'clear margins' means — the pathologist checks the tissue removed to ensure cancer cells do not reach the edge of the specimen, and additional surgery may be needed if margins are not clear. Some women choose mastectomy even when lumpectomy is an option, while others prioritize preserving the breast. Both choices are valid, and your preferences matter.

For many women, learning that breast-conserving surgery is an option — not just mastectomy — is a significant relief. Knowing that lumpectomy, when combined with radiation, delivers equivalent survival to mastectomy for early-stage cancer means you do not have to choose between effective treatment and keeping your breast. That said, it is also important to know that the choice is genuinely yours, and some women feel more at peace with mastectomy for reasons that are personal and meaningful to them.

Questions worth asking before your surgery include: Are my margins likely to be clear with a lumpectomy? Will radiation be required, and for how long? What does recovery look like, and how might the breast look afterward? Are reconstruction or cosmetic options available if needed? The surgical conversation is also the right time to ask whether a sentinel lymph node biopsy will be performed during the same operation to assess lymph node status. Being informed going into surgery helps you feel like an active participant in your own care.