Mohs Micrographic Surgery
Mohs micrographic surgery is a comparatively recent form of skin cancer surgery that is becoming increasingly popular. Although the concept of Mohs micrographic surgery was developed more than 50 years ago, relatively few dermatologists were trained in its use until recently. Only in the last few years has the technique become widely available throughout the country.
Mohs micrographic surgery is now universally recognized as a precise method for treating skin cancers. It is especially effective in cancers of the face and other cosmetically sensitive areas, because it can eliminate virtually all the cancer cells while causing minimal damage to the surrounding normal skin.
A dermatologist is best trained to determine when this technique should be used rather than the other effective procedures also available for treating skin cancer.
What is Mohs Micrographic Surgery?
Mohs micrographic surgery is named in honor of the physician who developed the basic technique, Dr. Frederic Mohs. You may hear it called Mohs surgery, chemosurgery, microscopically controlled surgery or histographic surgery—it’s all the same. In the years since Dr. Mohs pioneered the procedure, many technical improvements and refinements have contributed to make micrographic surgery a safe and highly effective means of treating skin malignancies.
The main difference between micrographic surgery and other methods of removing skin lesions is microscopic control . In Mohs surgery multiple thin, horizontal layers of the cancer are removed. 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.
Before and After Surgery
Mohs micrographic surgery is commonly performed on an outpatient basis with a local anesthetic administered to the area around the tumor. Surgery usually begins early in the morning and is finished the same day unless the tumor is extensive.
Because of the layer-by-layer removal, laboratory preparation and examination under the microscope are delicate and require great precision. They are also time consuming. If more than one session is needed to remove all signs of tumor, a dressing is applied. Once the area is declared cancer-free, your surgeon will discuss the options of wound healing or reconstructive surgery.
Rationale for Mohs Micrographic Surgery
Cure rates for skin cancer after treatment with Mohs micrographic surgery are as high as 95 percent. The technique produces the smallest possible wound in the removal of any given tumor. The smaller the wound, the greater the chances for a good cosmetic result after the wound has completely healed. This is particularly important on the face, where a good appearance after surgery is of concern to the patient.
While the Mohs surgery is a technically demanding procedure, it is also highly cost-effective, because fewer return visits to the dermatologist’s office are needed for treatment of a recurring lesion.
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