About Mohs Surgery - Why Mohs Surgery?

Mohs Micrographic Surgery is just one of a number of techniques to treat skin cancer. Many skin cancers can be treated with superficial destruction, standard margin excision or radiation therapy. Each method has its place and your doctor can help you to determine which is right for you. But not all skin cancers are created equal. Some skin cancers require a method that ensures complete tumor removal to minimize your risk of a recurrence, while minimizing excess tissue removal.

Mohs Micrographic Surgery is designed to accomplish this goal. Mohs Surgery utilizes real time microscopic examination during the surgical removal of your cancer. This enables the surgeon to remove just what is needed to ensure that your tumor is completely removed. This also enables your surgeon to make very small excisional layers, which reduces the removal of excess tissue. This makes repairing the surgical defect less complicated, which enhances your functional and cosmetic result. In contrast, standard methods utilize visual inspection to determine the extent of your cancer. While in many cases this is adequate, it may result in excessive or inadequate removal of skin. This may increase the chance of having your skin cancer recur or cause unnecessary scarring.

Mohs micrographic surgery allows for the highest chance of cure. In fact, while some other techniques have only a 60 to 90 percent success rate, Mohs enjoys a 98 percent or higher success rate in curing most skin cancers. By using the microscope and the mapping technique, Mohs surgery pinpoints the cancerous areas and removes those areas only. By doing this, the exact location of skin cancer cells is determined. This allows the physician to save as much healthy tissue as possible, allowing for a more functional and aesthetically appealing repair.

While the Mohs technique has its advantages, it isn’t required for every skin cancer. The Mohs technique is time consuming and technically difficult. Many skin cancers can be treated appropriately via other methods.

The types of skin cancers that are most likely to require Mohs surgery are as follows:

• Cancers that are located in critical anatomic locations. These may be highly visible or cosmetically sensitive areas. These may also include areas where excess tissue in short supply or areas that are known to heal poorly. The areas include the face, scalp, neck, ears, eyelids, lower legs, hands or feet.
• Cancers that are large, aggressive, or rapidly growing
• Cancers that have been previously treated, but that have come back
• Cancers that have poorly-defined or difficult to visualize borders
• Cancers in which the highest cure rate is desired
• Cancers in which the scar following removal should be minimized


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