Mastectomy


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Definition

A mastectomy is surgery to remove the entire breast, including the skin, nipple, and areola. It is usually done to treat breast cancer.


Alternative Names

Breast removal surgery; Subcutaneous mastectomy; Total mastectomy; Simple mastectomy; Modified radical mastectomy


Description

You will be given general anesthesia (you will be asleep and pain-free). There are different types of mastectomy procedures. Which one your surgeon uses depends on the type of breast problem you have.

The surgeon will make a cut in your breast:

  • For a subcutaneous mastectomy, the surgeon removes the entire breast but leaves the nipple and areola (the colored circle around the nipple) in place.
  • For a total or simple mastectomy, the surgeon cuts breast tissue free from the skin and muscle and removes it. The nipple and the areola are also removed. The surgeon may do a biopsy of lymph nodes in the underarm area to see if the cancer has spread. In some rare breast cancers, a simple mastectomy is performed on both breasts.
  • For a modified radical mastectomy, the surgeon removes the entire breast along with some of the lymph nodes underneath the arm.
  • For a radical mastectomy, the surgeon removes the skin over the breast, all of the lymph nodes underneath the arm, and the chest muscles. This surgery is rarely done.
  • The skin is closed with sutures (stitches).

One or two small plastic drains or tubes are usually left in your chest to remove extra fluid from where the breast tissue used to be.

If all the cancer tissue is removed, a plastic surgeon may be able to reconstruct the breast (with artificial implants or tissue from your own body) during the same operation. You may also choose to have reconstruction later.

See also:

Mastectomy usually takes 2 to 3 hours.


Why the Procedure Is Performed

WOMAN DIAGNOSED WITH BREAST CANCER

The most common reason for a mastectomy is breast cancer.

If you are diagnosed with breast cancer, talk to your doctor about your choices:

  • Lumpectomy is when only the breast cancer and tissue around the cancer are removed. This is also called breast conservation therapy or partial mastectomy. Part of your breast will be left.
  • Mastectomy is when all breast tissue is removed. Mastectomy is a better choice if the area of cancer is too large to remove without deforming the breast.

You and your doctor should consider:

  • The size of your tumor, where in your breast it is located, whether you have more than one tumor in your breast, how much of your breast the cancer affects, and the size of your breasts
  • Your age, family history, overall health, and whether you have reached menopause

The choice of what is best for you can be difficult. Sometimes, it is hard to know whether lumpectomy or mastectomy is best. You and the health care providers who are treating your breast cancer will decide together what is best.

WOMEN AT HIGH RISK FOR BREAST CANCER

Women who have a very high risk of developing breast cancer may choose to have either a subcutaneous or total mastectomy to reduce your risk of breast cancer. This is called prophylactic mastectomy.

You may have a higher risk of getting breast cancer if one or more close family relatives has had breast cancer, especially at an early age. Genetic tests (such as BRCA1 or BRCA2) may also show that you have a high risk. This surgery should be done only after very careful thought and discussion with your doctor, a genetic counselor, your family, and others.

Mastectomy greatly reduces, but does not eliminate, the risk of breast cancer.


References

Carlson RW, Allred DC, Anderson BO, Burstein HJ, Carter WB, Edge SB, et al. Breast cancer. National Comprehensive Cancer Network Clinical Practice Guidelines in Oncology. v2. 2010.

Iglehart JD, Smith BL. Diseases of the breast. In: Townsend CM, Beauchamp RD, Evers BM, Mattox KL, eds. Sabiston Textbook of Surgery. 18th ed. Philadelphia, Pa: Saunders Elsevier; 2008:chap 34.

Cuzick J, DeCensi A, Arun B, Brown PH, Catiglione M, Dunn B, et al. Preventive therapy for breast cancer: a consensus statement. Lancet Oncol. 2011;12:496-503.

Giuliano AE, Hunt KK, Ballman KV, Beitsch PD, Whitworth PW, Blumencranz PW, et al. Axillary dissection vs no axillary dissection in women with invasive breast cancer and sentinel node metastasis: a randomized clinical trial. JAMA. 2011;305:569-575.


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Review Date: 11/21/2011
Reviewed By: Shabir Bhimji, MD, PhD, Specializing in General Surgery, Cardiothoracic and Vascular Surgery, Midland, TX. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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