Microsoft word - info about mohs surgery.doc

Mohs Surgery

Mohs surgery, also called Mohs micrographic surgery, is a specialized technique for removing skin cancer. Named after its inventor, Dr. Frederic Mohs, Mohs surgery is the treatment of choice for many skin cancers. It offers the following advantages: • Highest cure rate. Because all surgical margins are examined microscopically in
the office, this procedure has the highest cure rate of all skin cancer treatments. • Best cosmetic result. Because there is no need to take a margin of healthy skin
in Mohs surgery, the size of the wound left after tumor removal is minimized. Keeping the defect small optimizes the surgical repair, and produces a superior cosmetic result.
Mohs surgery is as an outpatient procedure that is performed under local anesthesia.
First, the portion of the tumor that is clearly visible is surgically removed. Then the
tumor is processed by the laboratory that is located in our office. This processing takes
about an hour. After processing, the physician uses a microscope to see if the entire
tumor has been removed. If the margins are clear, and the tumor has been completely
removed, then the surgeon will repair the wound that was created by tumor removal. The
repair usually involves sutures.
If the margins are not clear, meaning that some of the tumor was left behind, then the
surgeon will go back and remove the edges around the previous tumor. This will
likewise be processed and examined with a microscope. If tumor removal is complete,
then sutures will be used to repair the defect, if not, then another layer of skin will be
taken. This process is repeated as many times as necessary until the entire tumor is
Because the number of stages involved with each case is unpredictable, it is impossible to
know how long the surgery will take. For this reason, it is important for patients to plan
on spending the entire day with us. Bring a good book and whatever else will help keep
you comfortable while you are with us.
Frequently Asked Questions

What does "Mohs" stand for?
Dr. Frederic Mohs developed this technique about 60 years ago. The procedure has been
modified and refined over the years. Practitioners of the technique have kept Dr. Mohs’
name in respect for his contribution. Mohs surgery has other names including Mohs
chemosurgery, Mohs microscopically controlled surgery, and Mohs micrographic

How large of a scar will I have from the surgery?
The size of the scar depends on the size of the tumor. It is often difficult to predict the
size of the tumor prior to surgery.
Will I have stitches following the surgery?
Most patients will have stitches. There are three main ways your surgical wound may be
1. Direct closure of wound with stitches. This is the most common method. It means that the wound will be repaired with a row a stitches that are usually in a straight line. 2. Skin graft or flap: In some instances, it is necessary to remove skin from behind the ear or some other site and graft it over the wound. Other times skin that is located near the wound is moved in to fill the defect left from surgery – this is a skin flap. 3. Let wound heal in by itself. The body has an excellent capacity to heal open wounds. This healing period takes approximately four to six weeks depending on the size and location of the wound. It requires regular wound care.
In addition to wound size and location, the surgeon considers other factors in determining
how your wound will be handled. This will be fully discussed with you on the day of
Will I be put to sleep for the surgery?
No. The surgery is well tolerated with local anesthesia. Because the surgery may be
time-consuming, the risk of prolonged general anesthesia is thus avoided.
How long will the surgery last?
The length of surgery depends on the extent of the tumor, but commonly takes between
3-5 hours. Much of that time will be spent waiting for tissue to be processed in the lab.
Bring reading materials, needlework, etc., with you to help pass the time. We have wi-fi
internet access available for those who are interested. Also, you may want to bring a
snack or lunch with you on the day of surgery.
Should I bring someone with me?
It is often helpful to bring someone with you on the day of surgery. Depending on the
size and location of your tumor, driving is sometimes a challenge after surgery, and
having a driver with you is a good idea. Additionally, if someone other than the patient
will be performing post-op wound care, the nurse can give this person direct instructions,
demonstrate wound care, and answer any questions about the surgery.
What should I wear?
You should wear comfortable clothing. You may want to bring a sweater, as our office is
kept cool for the laboratory equipment that is needed for this procedure.
Should I eat breakfast before surgery?
Yes. Breakfast is recommended.

Should I take my regular medications on the morning of the surgery?
Yes. Take your regular medications as they have been prescribed.
Are there any medications I should avoid prior to surgery?
Continue taking all of your medications prior to surgery.
What if I am taking Coumadin (warfarin) or another blood thinner?
Please continue to take these medicines as prescribed. Do not stop your coumadin or
other blood thinning agents unless directed to do so by your physician.
Will my activity be limited after surgery?
Yes. Physical activity, including sports, will be limited for the first week following
surgery. If your work requires significant physical exertion, you may be out of work for
several days after surgery. An excuse for your absence will be provided if necessary.
Avoid any long trips within the first ten days following surgery in case you develop some
What are the potential complications of surgery?
Bleeding and infection are the two primary complications. Both of these are uncommon,
and can be treated if they do occur. We will discuss how to recognize and deal with these
possibilities when you come for your surgery.
Will my insurance cover the cost of surgery?
Under most circumstances your carrier will pay for surgery. If you are a member of an
HMO, it may be necessary to obtain a referral or authorization from your primary
physician. If you are in doubt about your particular coverage, you should check with your
insurance representative prior to your appointment. If you have specific questions
regarding insurance or billing matters, please contact our office at (703) 723-5700.
Please feel free to visit our website for further information.


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