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Skin Cancer Treatments:
Skin cancer is most commonly treated by surgical methods. These
procedures include:
Surgical Excision:
Surgical excision is the most common treatment method for skin cancer.
It is used primarily for removal of easy-to-treat skin cancers that
are not located in cosmetically sensitive areas, such as the arm,
leg, or trunk. Surgical excision is performed using a scalpel. It
is usually performed as an outpatient procedure. At this time, surgical excision is the preferred method of treatment for malignant melanoma.
Surgical excision requires the surgeon to estimate where the edges
of the tumor are located and then add several additional millimeters
of normal skin to try and remove the entire tumor. This may lead
to an excessively large surgical wound due to the estimation of
the tumor margins. When treating skin cancers on the face or other
cosmetically sensitive areas it is important to keep the surgical
wound as small as possible so as to have the best appearance after
sewing up the wound.
After the tissue sample is removed, it is sent to a pathology lab
to check for complete removal of the tumor. This step requires several
days to one week. If tumor is present in the edges of the tissue
sample, then tumor is still present in the patient. The patient
must then return for further surgery.
One disadvantage of surgical excision is that not all of the tissue
edges are checked when using routine pathology; therefore, some
of the tumor may remain and lead to recurrence of the skin cancer.
However, Moh's surgery allows the doctor to check all the edges
to give the highest cure rate and the smallest chance for recurrence.
(See About Mohs Micrographic Surgery
for more information about this procedure.)
Electrodesiccation & Curettage:
Also known as "scrape and burn" this method removes skin cancer
by using a curette and electric needle. The curette scrapes away
tumor, since tumor cells are less cohesive than normal cells. The
area is then treated with an electric needle to further burn the
area. This process is repeated three times.
This method is commonly used and successful in many instances. The
surgical margins are not checked, however, and after the procedure
is completed the surgeon does not know whether the tumor has been
completely removed. An open wound is also left to heal on its own,
which often results in a sub-optimal cosmetic outcome. This wound
takes several weeks to heal. The method does allow quick and simple
treatment often on the same day as a skin biopsy when the diagnosis
is almost certain.
Cryotherapy:
The tumor is frozen with liquid nitrogen. This method of cancer
surgery is not common practice, but can be very effective in experienced
hands.
Mohs Micrographic Surgery:
The most precise method for skin cancer (basal cell and squamous cell carcinoma) removal with the
highest cure rates. With this method the surgeon
checks the tissue while you wait. Further surgery can be performed
immediately, and repair of the surgical wound can usually be completed
the same day. Mohs surgery is a cost efficient outpatient procedure
using local anesthesia.
Non-Surgical Methods Include:
Radiation Therapy: X-rays are used
to kill the cancer cells. This method also requires an estimate
of the extent and size of the tumor.
Photodynamic Therapy: An investigational technique where
light and chemicals are combined to kill cancer cells.
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