|
Choosing the best surgical treatment for each woman means
balancing the importance of maintaining sexual functioning with the
need to remove all the cancer. In the past, surgeons removing a vulvar
cancer also took out a large amount of surrounding normal tissue and
possibly local lymph nodes, regardless of the stage of the cancer,
because they wanted to be sure that no undetected cancer cells
remained. Such extensive surgery resulted in a good chance of cure, but
it was deforming and impaired the woman's sexual function if the
clitoris were removed. The removal of all the lymph nodes in the groin
often led to disabling swelling of the leg on that side.
Today, the importance of sexuality to a woman's quality of
life is well recognized. It has also been established that, when cancer
is detected early, it is not necessary to remove so much surrounding
healthy tissue to achieve a cure. In addition, the sentinel node biopsy
procedure avoids removing lymph nodes if the cancer has not spread.
However, the use of sentinel lymph node biopsy has not been
conclusively shown to be as effective as standard groin dissections.
Studies are on-going to evaluate their role (see below). When cancer is
more advanced, an extensive procedure may be necessary. Radiation can
be combined with chemotherapy and surgery to kill more cancer cells in
advanced cases.
The following types of surgery are listed in order of how much
tissue is removed (from least to most):
Laser surgery
A focused laser beam vaporizes (burns off) the layer of vulvar
skin containing abnormal cells. Laser surgery is used as a treatment
for VIN (pre-invasive vulvar cancer). It is not used to treat invasive
cancer.
Excision
The cancer and a margin of normal-appearing skin (usually
about ½ inch) around it are excised (cut out). This is
sometimes called wide local excision. If extensive, it may be called a
simple partial vulvectomy.
Vulvectomy
In this type of operation, all or part of the vulva is
removed.
- A skinning
vulvectomy means only the top layer of skin affected by
the cancer is removed. Although this is an option for treating
extensive VIN3, this operation is rarely done.
- In a simple
vulvectomy, the entire vulva is removed.
- A radical
vulvectomy can be complete or partial. When part of the
vulva, including the deep tissue, is removed, the operation is called a partial vulvectomy.
In a complete radical
vulvectomy, the entire vulva and deep tissues, including
the clitoris, are removed.
Sometimes these procedures remove a large area of skin from
the vulva, requiring skin grafts from other parts of the body to cover
the wound. However, most of the time the surgical wounds resulting from
these procedures can be closed without grafts and still provide a very
satisfactory appearance. If a graft is required, the gynecologic
oncologist may perform the surgery and consult with a
plastic/reconstructive surgeon.
Reconstructive surgery is available for women who have had
more extensive surgery. A reconstructive surgeon will take a piece of
skin and underlying fatty tissue and sew it into the area where the
cancer was removed. Several sites in the body can be used, but it is
complicated by the fact that the blood supply to the transplanted
tissue needs to be kept intact. This is where a skillful surgeon is
needed because the tissue must be moved without damaging the blood
supply. If you are having this procedure, ask the surgeon to explain
how this will be done in your case, because there is no set way of
doing it.
Pelvic exenteration
Pelvic exenteration is an extensive operation that includes
vulvectomy and removal of the pelvic lymph nodes, as well as removal of
one or more of the following structures: the lower colon, rectum,
bladder, uterus, cervix, and vagina. How much has to be removed depends
on how far the cancer has spread.
If the bladder is removed, a new way to store and eliminate
urine is needed. Usually a short segment of intestine is used to
function as a new bladder. This may be connected to the abdominal wall
so that urine is drained periodically when the woman places a catheter
into a small opening (called a urostomy). Or urine may drain
continuously into a small plastic bag attached to the front of the
abdomen over the opening.
If the rectum and part of the colon are removed, a new way to
eliminate solid waste will be needed. This is made by attaching the
remaining intestine to the abdominal wall so that fecal material can
pass through a small opening (called a colostomy) into a small plastic
bag worn on the front of the abdomen. Sometimes it's possible to remove
a piece of the colon and then reconnect it. In that case, the woman
will not need bags or external appliances.
Inguinal lymph node dissection
Because vulvar cancer often spreads to lymph nodes in the
groin, these must be removed. This procedure is called an inguinal
lymph node dissection. Usually only lymph nodes on the same side as the
cancer are removed. If the cancer is in the middle, then both sides may
have to be done.
In the past, the incision that was used to remove the cancer
was made larger to remove the lymph nodes. Now, doctors prefer to
remove the lymph nodes through a separate incision located about 1 cm
below and parallel to the groin crease. The incision is made fairly
deep, down through membranes that cover the major inguinal vein and
artery. This will expose most of the lymph nodes, which are then
removed. A major vein, the saphenous, may or may not be closed off by
the surgeon. Some surgeons will try and save the saphenous vein in an
effort to prevent leg swelling, which is often a problem with this
surgery. After the surgery, a suction drain is placed into the incision
for a few days, and the wound is closed.
Sentinel lymph node biopsy
This is a newer procedure that can help some women avoid
having a full inguinal node dissection. This involves finding and
removing the lymph nodes that drain the area where the cancer is. These
lymph nodes are known as sentinel lymph nodes because cancer would be
expected to spread to them first. The lymph nodes that are removed are
then looked at under the microscope to see if they contain cancer
cells. If they do, then the remaining lymph nodes in this area need to
be removed. If the sentinel nodes do not contain cancer cells, further
lymph node surgery is not needed. The sentinel lymph node biopsy
procedure is still being studied to see if it finds cancer spread as
well as a full inguinal lymph node dissection. This approach is not
regarded as standard treatment at this time.
To find the sentinel lymph node(s), a small amount of
radioactive material and/or blue dye is injected into the tumor site on
the day before surgery. The groin is scanned to identify the side (left
or right) that picks up the radioactive material. This is the side that
will be operated on. During the surgery to remove the cancer, blue dye
will be injected into the tumor site. This allows the surgeon to find
the sentinel node by its blue color and then remove it. Sometimes 2 or
more lymph nodes turn blue and are removed.
If a lymph node near a vulvar cancer is abnormally large, a
sentinel lymph node biopsy is usually not done. Instead, a fine needle
aspiration (FNA) biopsy or surgical biopsy of that lymph node is done.
Complications and side effects of vulvar
surgery
After vulvar surgery, women often feel discomfort if they wear
tight slacks or jeans because the "padding" around the urethral opening
and vaginal entrance is gone. The area around the vagina also looks
very different.
Removal of wide areas of vulvar skin may result in problems
with wound healing, wound infections, or failure of the skin graft to
take.. The more tissue removed, the greater the risk of these
complications.
Other complications of vulvar and groin node surgery include
formation of fluid-filled cysts near the surgical wounds, blood clots
that may travel to the lungs, urinary infections, and reduction of
sexual desire or pleasure.
Lymphedema: Removal
of lymph nodes during a radical vulvectomy with radical lymphadectomy
can result in poor fluid drainage from the legs. This causes the fluid
to build up leading to leg swelling that is severe and
doesn’t go down at night. This is called lymphedema. Support
stockings or special compression devices may help reduce swelling.
Women with lymphedema need to be very careful to avoid infection in the
affected leg or legs. They can do this by taking these precautions:
- protect the leg and foot from sharp objects and care for
any cuts, scratches, or burns right away
- avoid sunburn of the affected leg(s) and avoid cutting or
tearing the cuticles of the toenails
- report any redness, swelling, or other signs of infection
to the nurse or doctor without delay
More information about lymphedema can be found in our
document, Understanding
Lymphedema
(for cancers other than breast cancer).
Sexual impact of
vulvectomy: Women often fear their partners will feel
turned off by the scarring and loss of the outer genitals, especially
if they enjoy orally stimulating the woman as part of lovemaking. Some
women may be able to have surgery to rebuild the outer and inner lips
of the genitals.
It may be difficult for women who have had a vulvectomy to
reach orgasm. The outer genitals, especially the clitoris, are
important in a woman's sexual pleasure. For many women, the vagina is
just not as sensitive. Women may also notice numbness in their genital
area after a radical vulvectomy. The feeling may return over the next
few months.
When touching the area around the vagina, and especially the
urethra, a light caress and the use of a lubricant can help prevent
painful irritation. If scar tissue narrows the entrance to the vagina,
penetration may be painful. Vaginal dilators can sometimes help stretch
the opening. When scarring is severe, the surgeon can use skin grafts
to widen the entrance.
Lymphedema resulting from removal of lymph nodes in the groin
area can cause pain and fatigue. This also can be a problem during sex.
A couple will need to use good communication to cope with such
problems.
Last Medical Review: 12/30/2008 Last Revised: 05/14/2009
|