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Lumpectomy (lum-PEK-tuh-me) is surgery to remove cancer or other abnormal tissue from your breast.
Lumpectomy is also called breast-conserving surgery or wide local excision because — unlike a mastectomy — only a portion of the breast is removed. Doctors may also refer to lumpectomy as an excisional biopsy.
During lumpectomy, a small amount of normal tissue around the lump (also described as clean or normal margins of breast tissue) also is taken to help ensure that all the cancer or other abnormal tissue is removed.
Lumpectomy helps confirm a diagnosis of cancer or rule it out. Lumpectomy is also a first treatment option for some women with early-stage breast cancer. In cases where cancer is found, lumpectomy usually is followed by radiation therapy to the breast to reduce the chances of cancer returning.
The goal of lumpectomy is to remove cancer or other abnormal tissue while maintaining the appearance of your breast. Studies indicate that lumpectomy is as effective a treatment in preventing a recurrence of breast cancer as removal of the entire breast (mastectomy) for women with early-stage breast cancer.
Your doctor may recommend lumpectomy if a biopsy has shown that you have cancer and that the cancer is believed to be small and early stage. Lumpectomy may also be used to remove certain noncancerous or precancerous breast abnormalities.
You may not be a candidate for lumpectomy for breast cancer if you:
Lumpectomy is a surgical procedure that carries a risk of side effects, including:
You'll meet with your surgeon a few days before your lumpectomy. Bring a list of questions to remind you to cover everything you want to know. Make sure you understand the procedure and its risks.
You'll be given instructions about presurgical restrictions and other things you need to know. In most cases, the surgery will be done as an outpatient procedure, so you can go home the same day.
Tell your doctor about any medications, vitamins or supplements you're taking in case something could interfere with the surgery. In general, to prepare for your lumpectomy, it's recommended that you:
Your lumpectomy procedure begins with locating the area of your breast that contains the abnormality.
If your breast abnormality was detected on a mammogram and confirmed with a biopsy, your radiologist may have placed a tiny marker or clip in your breast during the biopsy. If this is the case, a thin wire or radioactive marker may be inserted in your breast just before surgery and passed down to the marker or clip. Your surgeon can use the wire as a guide to the precise area that needs to be removed during surgery.
If you have a lump or mass in your breast that can be easily felt through the skin, the wire procedure may not be necessary because the surgeon can more easily find the abnormal area to be removed.
Lymph nodes are often removed during surgery to determine whether cancer has spread beyond the breast. Options may include:
Sentinel lymph node biopsy. During this procedure your surgeon removes only the first one or two nodes into which a tumor drains (sentinel nodes). These are then tested for cancer. Your doctor may recommend this procedure if there are no concerns about enlarged lymph nodes prior to your surgery.
Before your surgery, a radioactive substance or blue dye or both is injected into the area around the tumor or the skin above the tumor. The dye travels to the sentinel node or nodes, allowing your surgeon to identify and remove them.
If no cancer is present, no further lymph nodes need to be removed. If cancer is present, the surgeon will discuss options, such as receiving radiation to the armpit to treat the affected lymph node. If this is what you decide to do, you will not need to have more lymph nodes in the armpit removed.
A lumpectomy is usually performed using general anesthesia, which will make you unaware during the procedure.
Your surgeon will make an incision over the tumor or over the area that contains the wire, remove the tumor and some surrounding tissue, and send it to the lab for analysis. He or she will do the same for the sentinel lymph node or nodes if you're having a sentinel node biopsy or the axillary lymph nodes if you're having an axillary node dissection.
The surgeon will then close the incisions with attention to preserving the appearance of your breast, using stitches (sutures) that will either dissolve on their own or be removed later by your doctor.
After your surgery, you'll be taken to a recovery room. During this time, your blood pressure, pulse and breathing will be monitored.
If you've had outpatient surgery — usually lumpectomy and sentinel node biopsy — you'll be released when your condition is stable.
If you've had axillary node excision, you may need to stay in the hospital for a day or two if you're experiencing pain or bleeding.
Expect to have:
The results of your pathology report should be available in a week or two. At the follow-up visit after your surgery, your doctor will explain the report. If you need more treatment, your doctor may recommend:
Last Updated Oct 31, 2018