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Mohs Surgery

Mohs micrographic surgery is a highly specialized state-of-the-art treatment for skin cancer

Only physicians who have been specially trained in this technique perform this procedure. Dr. David Cowan has received advanced training in surgery, pathology, and facial reconstructive surgery and has completed the procedure successfully for thousands of patients.

The Mohs Difference

Mohs micrographic surgery differs from other treatments for skin cancer by combining surgical removal of the affected skin with microscopic analysis of the tissue that day.

This helps to ensure that all of the cancer has been removed, while leaving the surrounding healthy skin intact and unharmed.
By using very detailed mapping techniques and microscopic examination of cancerous tissue, the “roots” of the skin cancer are extracted in a very precise and accurate manner, giving Mohs micrographic surgery the highest cure rate of any procedure used in the treatment of skin cancer.

Other Advantages

  • Mohs micrographic surgery is minimally invasive and performed in an outpatient setting under local anesthesia.
  • It has up to a 99% cure rate — the lowest chance of recurrence or re-growth of the tumor provided by any treatment method for skin cancer.
  • Mohs results in the smallest wound possible, thereby minimizing your scar.

About the Procedure

You will be contacted prior to your appointment with further instructions and information. When you arrive at the office, a member of our staff will review your medical history and details of the procedure. Next, Dr. Cowan will confirm the exact location of the area to be treated and numb it with a local anesthetic.

Once numbed, a thin layer of skin will be surgically removed and a bandage placed over the site. The layer of removed tissue is taken to the lab where it is processed. This first procedure (or ‘stage’) usually takes one to two hours. During this time, you will be asked to wait either in the waiting room or in the procedure room, so you may want to bring a book or magazine. Please DO NOT leave the office during the waiting period.

Each stage requires one to two hours (sometimes longer) and typically the skin cancer can be removed in one to three stages. Once the cancer has been removed, Dr. Cowan will talk to you about the best way to reconstruct the defect left by surgery. If required, stitching can take an additional hour. You should plan to be in the office for the entire day, but many patients may be discharged in four to five hours (sometimes less). We provide breakfast, lunch and light refreshments for you and your family.

Will the Surgery Leave a Scar?

  • Any form of treatment for skin cancer will leave a wound or scar. Because Mohs surgery is tissue sparing, your scar is minimized compared to other surgical techniques. Once the cancer has been removed completely, Dr. Cowan will discuss wound repair options with you.

When are the Sutures Removed?

  • Before you leave the office, we will schedule an appointment for removal of sutures and follow up with the doctor. Typically this is scheduled 7 to 14 days after the surgical procedure, unless dissolvable sutures are used.

Is Recovery Painful?

  • Discomfort from surgery varies with each patient. A pain reliever may be prescribed. Extra-strength acetaminophen, anti-inflammatory medications or a prescription pain medication is often sufficient.

Click here to download the Mohs Surgery brochure.

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