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Skin Cancer - And Your Plastic Surgeon
Skin cancer is the most common form of cancer
in the United States. More than 500,000 new cases are reported each
year-and the incidence is rising faster than any other type of cancer.
While skin cancers can be found on any part of the body, about 80
percent appear on the face, head, or neck, where they can be disfiguring
as well as dangerous.
The purpose of this page is to educate you about
the different types of skin cancer, their causes, and preventive
measures you can take; to help you know when to consult a doctor;
and to explain the role of the plastic surgeon in the diagnosis
and treatment of skin cancer and other skin growths.
WHO GETS SKIN CANCER ...AND WHY
The primary cause of skin cancer is ultraviolet
radiation -most often from the sun, but also from artificial sources
like sunlamps and tanning booths. In fact, researchers believe that
our quest for the perfect tan, an increase in outdoor activities,
and perhaps the thinning of the earth's protective ozone layer are
behind the alarming rise we're now seeing in skin cancers.
Anyone can get skin cancer-no matter what your
skin type, race or age, no matter where you live or what you do.
But your risk is greater if...
- Your skin is fair and freckles easily.
- You have light-colored hair and eyes.
- You have a large number of moles, or moles of unusual size
or shape.
- You have a family history of skin cancer or a personal history
of blistering sunburn.
- You spend a lot of time working or playing outdoors.
- You live closer to the equator, at a higher altitude, or in
any place that gets intense, year-round sunshine.
- You received therapeutic radiation treatments for adolescent
acne.
TYPES OF SKIN CANCER
By far the most common type of skin cancer is
basal cell carcinoma. Fortunately, it's also the least dangerous
kind--it tends to grow slowly, and rarely spreads beyond its original
site. Though basal cell carcinoma is seldom life-threatening, if
left untreated it can grow deep beneath the skin and into the underlying
tissue and bone, causing serious damage (particularly if it's located
near the eye).
Squamous cell carcinoma is the next most common
kind of skin cancer, frequently appearing on the lips, face, or
ears. It sometimes spreads to distant sites, including lymph nodes
and internal organs. Squamous cell carcinoma can become life threatening
if it's not treated.
A third form of skin cancer, malignant melanoma,
is the least common, but its incidence is increasing rapidly, especially
in the Sunbelt states. Malignant melanoma is also the most dangerous
type of skin cancer. If discovered early enough, it can be completely
cured. If it's not treated quickly, however, malignant melanoma
may spread throughout the body and is often deadly.
OTHER SKIN GROWTHS YOU SHOULD KNOW
ABOUT
Two other common types of skin growths are moles
and keratoses.
Moles are clusters of heavily pigmented skin cells,
either flat or raised above the skin surface. While most pose no
danger, some-particularly large moles present at birth, or those
with mottled colors and poorly defined borders-may develop into
malignant melanoma. Moles are frequently removed for cosmetic reasons,
or because they're constantly irritated by clothing or jewelry (which
can sometimes cause pre-cancerous changes).
Solar or actinic keratoses are rough, red or brown,
scaly patches on the skin. They are usually found on areas exposed
to the sun, and sometimes develop into squamous cell cancer.
RECOGNIZING SKIN CANCER
Basal and squamous cell carcinomas can vary widely
in appearance. The cancer may begin as small, white or pink nodule
or bumps; it can be smooth and shiny, waxy, or pitted on the surface.
Or it might appear as a red spot that's rough, dry, or scaly...a
firm, red lump that may form a crust...a crusted group of nodules...a
sore that bleeds or doesn't heal after two to four weeks...or a
white patch that looks like scar tissue.
Malignant melanoma is usually signaled by a change
in the size, shape, or color of an existing mole, or as a new growth
on normal skin. Watch for the "ABCD" warning signs of
melanoma: Asymmetry-a growth with unmatched halves; Border irregularity-ragged
or blurred edges; Color-a mottled appearance, with shades of tan,
brown, and black, sometimes mixed with red, white, or blue; and
Diameter- a growth more than 6 millimeters across (about the size
of a pencil eraser), or any unusual increase in size.
If all these variables sound confusing, the most
important thing to remember is this: Get to know your skin and examine
it regularly, from the top of your head to the soles of your feet.
(Don't forget your back.) If you notice any unusual changes on any
part of your body, have a doctor check it out.
CHOOSING A DOCTOR
If you're concerned about skin cancer, your family
physician is a good place to start. He or she should examine your
skin at your annual physical, and can refer you to a specialist
if necessary.
If you notice an unusual growth yourself, consult
a plastic surgeon or a dermatologist. Both are skilled at diagnosing
and treating skin cancer and other skin growths. A plastic surgeon
can surgically remove the growth in a manner that maintains function
and offers the most pleasing final appearance- a consideration that
may be especially important if the cancer is in a highly visible
area. If a treatment other than surgical excision is called for,
the plastic surgeon can refer you to the appropriate specialist.
DIAGNOSIS AND TREATMENT
Skin cancer is diagnosed by removing all or part
of the growth and examining its cells under a microscope. It can
be treated by a number of methods, depending on the type of cancer,
its stage of growth, and its location on your body.
Most skin cancers are removed surgically, by a
plastic surgeon or a dermatologist. If the cancer is small, the
procedure can be done quickly and easily, in an outpatient facility
or the physician's office, using local anesthesia. The procedure
may be a simple excision, which usually leaves a thin, barely visible
scar. Or curettage and desiccation may be performed. In this procedure
the cancer is scraped out with an electric current to control bleeding
and kill any remaining cancer cells. This leaves a slightly larger,
white scar. In either case, the risks of the surgery are low.
If the cancer is large, however, or if it has
spread to the lymph glands or elsewhere in the body, major surgery
may be required. Other possible treat- ments for skin cancer include
cryosurgery (freezing the cancer cells), radiation therapy (using
x-rays), topical chemotherapy (anti-cancer drugs applied to the
skin), and Mohs surgery, a special procedure in which the cancer
is shaved off one layer at a time. (Mohs surgery is performed only
by specially trained physicians and often requires a reconstructive
procedure as follow-up.)
DISCUSSING YOUR OPTIONS AND CONCERNS
All of the treatments mentioned above, when chosen
carefully and appropriately, have good cure rates for most basal
cell and squamous cell cancers -and even for malignant melanoma,
if it's caught very early, before it's had a chance to spread.
You should discuss these choices thoroughly with
your doctor before beginning treatment. Find out which options are
available to you...how effective they're likely to be for your particular
cancer...the possible risks and side effects...who can best perform
them...and the cosmetic and functional results you can expect. If
you have any doubts about the outcome, get a second opinion from
a plastic surgeon before you begin treatment.
A WORD ABOUT RECONSTRUCTION
The different techniques used in treating skin
cancers can be life saving, but they may leave a patient with less
than pleasing cosmetic or functional results. Depending on the location
and severity of the cancer, the consequences may range from a small
but unsightly scar to permanent changes in facial structures such
as your nose, ear, or lip.
In such cases, no matter who performs the initial
treatment, the plastic surgeon can be an important part of the treatment
team.
Reconstructive techniques- ranging from a simple
scar revision to a complex transfer of tissue flaps from elsewhere
on the body-can often repair damaged tissue, rebuild body parts,
and restore most patients to acceptable appearance and function.
PREVENTING A RECURRENCE
After you've been treated for skin cancer, your
doctor should schedule regular follow-up visits to make sure the
cancer hasn't recurred.
Your physician, however, can't prevent a recurrence.
It's up to you to reduce your risks by changing old habits and developing
new ones. (These preventive measures apply to people who have not
had skin cancer as well.)
- Avoid prolonged exposure to the sun, especially between 10
a.m. And 2 p.m. and during the summer months. Remember, ultraviolet
rays pass right through water and clouds, and reflect off sand
and snow.
- When you do go out for an extended period of time, wear protective
clothing such as wide brimmed hats and long sleeves.
- On any exposed skin, use a sunscreen with an SPF (sun protection
factor) of at least 15. Reapply it frequently, especially after
you've been swimming or sweating.
- Finally, examine your skin regularly. If you find anything
suspicious, consult a plastic surgeon or a dermatologist as
soon as possible.
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