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Natural Image Orange County Cosmetic Dermatology and Cosmetic Surgery

Mohs' surgery

What is Mohs Skin Cancer Surgery?

How is Mohs different from other types of skin cancer surgery?

How is Mohs surgery done?

Steps in the Mohs surgery

Is it really better to have Mohs surgery?

Does having Mohs surgery guarantee that the cancer won't come back?

Can only dermatologists perform skin cancer surgery?

Will I have a scar?

Skin Cancer Surgery and Skin Cancer Reconstruction


What is Mohs Skin Cancer Surgery?

Mohs surgery, also called Mohs micrographic surgery, is a precision surgical technique that is used to remove all parts of cancerous skin tumors, while at the same time preserving as much healthy tissue as possible. Cancer cells can spread deep into the skin and almost tentacle-like, spread out and away from the superficial mole or bump on your skin. Removing all of the affected tissue is crucial to the success. One small cell left behind can start a cascade of new cancer growth. Mohs surgery offers the best techniques for discovering and removing all the “bad” cells.

Dr. Sikorski is a member of the American Society for Mohs Surgery and has the special training qualifications required to perform this highly effective surgery.

Mohs Surgery Animation Demonstration
View 3d Animation – Mohs Surgery

How is Mohs different from other types of skin cancer surgery?

How is Mohs different from other types of skin cancer surgery?The principle behind Mohs surgery is to remove all cancerous cells while minimizing removal of healthy tissue. Without Mohs, your doctor will excise the area of suspected cancer, send it to a lab, and wait several days for a lab report to find out if all the margins were clear of cancer cells. Because until that point it is not known if you will need additional excision, the area is left “open”.

If the pathologist verifies that all the cancer is removed, then your doctor will call you back (or send you to a cosmetic surgeon) to have the gap closed. If the pathologist says that there is still cancer visible in the specimen they received, then you will return to your doctor's office, have more skin removed, and repeat the process. Mohs makes the process one step and allows closure or reconstructive work to be begin right away.

How is Mohs surgery done?

Mohs skin cancer surgery allows for the tissue to be examined through a microscope at the same time as the surgical removal to ensure that all of the cancer cells have been removed adequately. The surgical removal proceeds along a grid pattern with each layer carefully identified and mapped by the surgeon so that its exact location can be pinpointed on the wound. If any cancer cells are seen under the microscope, Dr. Sikorski can go back to that exact area and remove more tissue.

During this process, 100% of tissue margins are evaluated to ensure that the tumor is completely removed prior to repair of the skin defect In our office, the resulting defect (hole or gap created from removing the cancer) will be closed and/or reconstruction started by Dr Sikorski right away.

Hear Michelle's Testimonial About Mohs Surgery

Steps in the Mohs surgery

Step 1: Anesthesia
The tumor site is locally infused with anesthesia to completely numb the tissue. General anesthesia is not required for Mohs micrographic surgery.

Step 2: Stage I - Removal of visible tumor
Once the skin has been completely numbed, the tumor is gently scraped with a curette, a semi-sharp, scoop-shaped instrument. This helps define the clinical margin between tumor cells and healthy tissue. The first thin, saucer shaped "layer" of tissue is then surgically removed by Dr. Sikorski. An electric needle may be used to stop the bleeding.

Step 3: Mapping the tumor
Once a "layer" of tissue has been removed, a "map" or drawing of the tissue and its orientation to local landmarks (e.g. nose, cheek, etc) is made to serve as a guide to the precise location of the tumor. The tissue is labeled and color-coded to correlate with its position on the map. The tissue sections are processed and then examined to thoroughly evaluate for evidence of remaining cancer cells. It takes approximately 60 minutes to process, stain and examine a tissue section. During this processing period, your wound will be temporarily bandaged while waiting for results.

Step 4: Additional stages - Ensuring all cancer cells are removed
If any section of the tissue demonstrates cancer cells at the margin, Dr. Sikorski will return to that specific area of the tumor, as indicated by the map, and removes another thin layer of tissue only from the precise area where cancer cells were detected. The newly excised tissue is again mapped, color-coded, processed and examined for additional cancer cells. If microscopic analysis still shows evidence of disease, the process continues layer-by layer until the cancer is completely removed.

This selective removal of tumor allows for preservation of much of the surrounding normal tissue. Because this systematic microscopic search reveals the roots of the skin cancer, Mohs surgery offers the highest chance for complete removal of the cancer while sparing the normal tissue. Cure rates typically exceed 99% for new cancers, and 95% for recurrent cancers.

Step 5: Reconstruction
Trained Mohs surgeons are experts in the reconstruction of skin defects. Reconstruction is individualized to preserve normal function and maximize aesthetic outcome. The best method of repairing the wound following surgery is determined only after the cancer is completely removed, as the final defect cannot be predicted prior to surgery. Stitches may be used to close the wound side-to-side, or a skin graft or a flap may be designed. Sometimes, a wound may be allowed to heal naturally.

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Is it really better to have Mohs Surgery?

Mohs SurgeryHaving Mohs skin cancer surgery allows Dr. Sikorski to make sure all the cancer cells are removed, minimize removal of healthy tissue, and close the skin wound immediately. Minimizing tissue removal is especially important for eyelids, lips, the nose, ears, and other facial areas where loss of even a few millimeters of skin can make a big difference.

Does having Mohs surgery guarantee that the cancer won't come back?

Using the Mohs microscopic surgery technique insures that all pathologically visible cancer cells are removed. Even so, it is still possible to get a recurrence of the cancer in the same area but the chances are greatly reduced. With Mohs skin cancer surgery, there is a 95% cure rate, compared to 70-80% for the conventional treatments.

Can only dermatologists perform skin cancer surgery?

Dr Sikorski is a board certified dermatologist and by definition, dermatologists are best qualified to deal with issues of the skin, but there other physicians or surgeons who have taken qualifying training for performing surgery. Be prudent and check credentials. With Dr. Sikorski’s dual specialty in dermatology and cosmetic surgery, you have the advantages of immediate medical resolution and esthetically pleasing resolution to the problem.

Will I have a scar?

Any time you cut the skin, you will have a scar. In most cases, the scar is barely perceptible. You can view photos of Dr Sikorski's skin cancer reconstructions in the office to view the results of skin cancer reconstruction surgery.

Skin Cancer Surgery and Skin Cancer Reconstruction

Although large skin cancers can be seen with the naked eye, it takes a microscope to visualize cancer at the cellular level. The only way to prevent recurrence of localized skin cancer is to remove each and every cell; otherwise any remaining skin cancer cells can reproduce and cause a regrowth of the cancer.

Mohs surgery is a specialized method to remove skin cancer. It is named in honor of Frederick Mohs, the physician who developed the technique. Mohs surgery differs from other methods of treating skin cancer by the use of detailed mapping techniques and onsite microscopic examination of the surgically removed skin.

Mohs skin cancer surgery allows for the tissue to be examined during the operation through a microscope to ensure that all of the cancer cells have been removed adequately, and that removal of healthy, cancer-free tissue is minimized. Using the Mohs microscopic surgery technique there is a 95% or better cure rate. Mohs skin cancer surgery is then followed by careful reconstructive surgery to repair the defect (hole) and to yield an aesthetically pleasing result.

According to the American Cancer Society, there will be 1 million new cases of skin cancer this year, with the three most common types of skin cancer being Basal Cell Carcinoma, Squamous Cell Carcinoma and Malignant Melanoma. Basal Cell and Squamous Cell Carcinomas are usually localized and rarely spread to other parts of the body. When diagnosed and treated early, they are 95% curable. Malignant Melanoma is more serious as it has a propensity to metastasize (spread) to other areas of the body.

To reduce your risk of skin cancer, it is important to minimize sun exposure, wear sun protection daily, have full body skin examinations yearly (or more frequently if you have a personal or family history of skin cancer) and to recognize the signs and symptoms of skin cancer:

  • Melanoma: Comprises 4% of all skin cancers and usually appears as a dark lesion or mole that has changed in appearance. Look for changes of the ABCD’s – Asymmetry, irregular Border, Color varied within the mole from one area to the other or black in color, and increasing Diameter or diameter larger than a pencil eraser.
  • Squamous Cell Carcinoma: Comprises 16% of all skin cancers and is characterized by a rough, flaky, red or pink patch ofskin. At times these lesions can grow very rapidly, and are more common in smokers.
  • Basal Cell Carcinoma: The most common skin cancer, comprising 80% of all skin cancers, it is characterized by a raised red or brown lesion or patch, with pearly, raised or rolled borders and an ulcerated raw or oozing center. Basal Cell Carcinoma usually grows slowly, and is more common in sun-exposed areas, such as the eyelids, ears, cheeks, lips, neck, and hands.

Starting Point To Learn What's Right For You

Not sure where to start? Give us a call and chat with our patient coordinator Michelle. Call the office at (949) 448-0487 or Request a callback through this online form.

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