Mastectomy is a very broad term used to cover several techniques involved for removing one or more breasts. Aside from that, the surgeon may also remove nearby lymph nodes for the determination of the spread of cancer.
During an axillary node dissection, the surgeon removes quite a number of lymph nodes present in the armpit on the sides of the tumor.
In the sentinel lymph node biopsy, the surgeon removes only the initial few nodes which allow the tumors to drain which are called the sentinel nodes.
The lymph nodes that have been separated are then screened for cancer during the operation. If there is no sign of cancer then further lymph nodes will not be cut. But if cancer is detected the surgeon must delve deeply into other methods, such as radiation that is applied to the pole. When radiation therapy is required, then no more lymph nodes will be affected.
Removal of all tissue in the breast and most lymph nodes is called a modified radical mastectomy.
The more advanced mastectomy techniques remove lesser tissue and touch the least numbers of lymph nodes. Some of the other kinds of mastectomy are:
Total mastectomy: In a total mastectomy, also known as a simple mastectomy the entire breast is removed which includes the breast tissue, areola, and the nipple. A sentinel lymph node biopsy may be conducted during a total mastectomy.
Skin sparing mastectomy: In this case, just like the above all the components are removed but the breast skin is kept intact. A sentinel lymph node biopsy is also conducted simultaneously. Right after the procedure, breast reconstruction can be performed. But skin-sparing mastectomy may not be the solution for large-sized tumors.
Nipple-sparing mastectomy: A nipple or areola sparing mastectomy will comprise of removing the breast tissue which shall spare the skin, areola, and the nipple. A sentinel lymph node biopsy also has to be conducted along with and a breast reconstruction surgery which is done right after the surgery.
The surgical procedure is performed under general anesthesia, so the patient has no consciousness during the procedure. An elliptical incision is made around the breast by the surgeon. The tissues of the breasts are removed and depending on the above procedure and requirement other parts are thereby removed.
Irrespective of the type of mastectomy one may undergo the breast tissue and lymph nodes that are removed will be sent to a laboratory for further analysis. If the patient is also undergoing a breast reconstruction surgery, then the plastic surgeon will also coordinate with the breast surgeon to be present right at the time of the surgery.
Temporary tissue expanders are set as one of the breast reconstruction options in the chest. These temporary expanders to the chest will form the new breast mound. One of the options for women who will also need radiation therapy shortly after the procedure is to insert some topical tissue expanders in the chest to keep the breast skin in place. This will allow the final breast reconstruction to be delayed until completion of the radiation therapy.
If the patient is planning to have radiation therapy right after the surgery, then it is a good idea to meet with a radiation oncologist before the surgery for the discussion of benefits and risks and also to find out how radiation can impact the breast reconstruction options.
As the surgery is completed the incision is closed with the help of sutures which would either dissolve or get removed completely in the future. One or two small plastic tubes can be placed where the breast was removed. The tubes will finally drain all the fluids that accumulate after surgery. The tubes are kept in place by sewing the ends and a small drainage bag is attached at the end.