2718 Ekko Avenue • Albert Lea, MN • 56007
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MOHS Micrographic Surgery at Zogg Dermatology

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 an additional 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 an outpatient procedure that is performed under local anesthesia; therefore the risks associated with prolonged general anesthesia are avoided. Before the surgery begins, a small needle is used to place the numbing medicine (Lidocaine) in the area surrounding the skin cancer. After this first step, the remainder of the procedure is relatively pain free. The surgeon first removes the obvious skin cancer that can be seen with the unaided eye. Then a very thin saucer-shaped layer of normal appearing skin is removed, taking special care to map the tissue so that the surgeon is able to determine the corresponding margins on the patient. The tissue is then processed by the laboratory located in our office – a process that takes about an hour. After processing, the surgeon uses a microscope to trace the roots of the skin cancer 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 only in the area where the roots were left behind. 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 removed. As part of this procedure, Dr. Zogg utilizes his expertise in cosmetic surgery to address the area where cancerous cells were removed, and provide an excellent result with virtually undetectable scarring.

Learn more about Mohs surgery from the American Society for Mohs Surgery at:

With your comfort and safety in mind, we look forward to making sure your experience with Mohs micrographic surgery is a positive one and appreciate the opportunity to serve you.