Animation Movie Available Related Media: Mastectomy Lumpectomy

Depending on the stage, the location, and the type of tumor, you may be a candidate for various forms of surgery. In the early stages of breast cancer, breast-conserving surgeries (surgeries that remove only a portion of the breast) may be used. For early or later stages of breast cancer, or as a preventive measure, mastectomy (removal of the breast) may be performed instead.

Lumpectomy, Wide Excision, or Partial Mastectomy

Lumpectomy
Diagram of lumpectomy
© 2011 Nucleus Medical Media, Inc.

Lumpectomy, wide excision, segmentectomy, and partial mastectomy are known as breast-conserving surgeries. Only the malignant area and a small portion of the surrounding healthy tissue are removed. Sometimes, lymph nodes under the arm are also removed (axillary dissection). This procedure is almost always followed by a course ofradiation therapy.

Today, breast-conserving surgeries are the preferred type of surgery for eligible women in the early stages of cancer. Studies have shown that breast-conserving surgeries combined with radiation therapy are just as effective as mastectomy in the early stages of breast cancer. However, not all women with stage I or II breast cancer are eligible for this type of surgery. Conditions that might make you ineligible for this procedure include:

  • Multiple tumors in different areas of the breast (multicentric tumors)
  • One tumor spread throughout the breast (diffuse tumor)
  • Tumor located directly beneath the nipple
  • A tumor that is large in relation to breast size
  • History of scleroderma, systemic lupus, or dermatopolymyositis
  • Current pregnancy in the first or second trimester (The radiation used with breast-conserving surgery can injure a fetus.)
  • Previous high-dose radiation therapy to the affected breast