Mohs Surgery

First developed in the 1930s by Dr. Frederic Mohs, the technique has been modified through the years, but the general principles have remained the same. Mohs Surgery is the most effective technique for the removal of many skin cancers, offering complete visualization of all tissue margins at the time of surgery and therefore the highest chance for cure.  We can spare as much normal skin as possible so that we have the maximum amount of tissue for good healing and reconstruction.  After each removal of tissue, Dr. Findley examines the tissue specimen under the microscope in real-time to look for remaining cancer cells. This examination allows her to pinpoint the exact location of any remaining tumor cells and to determine if more tissue needs to be removed.  By minimizing the removal of the normal surrounding skin, we create a smaller defect or wound, which often leads to a simpler reconstruction and easier recovery. Since this procedure is carried out under local anesthesia, the risk for the patient is quite small, even in those with a complicated medical history. 

Dr. Findley is a Member of the American College of Mohs Surgery (ACMS) and is a Fellowship-Trained Mohs Surgeon. Treatment by an ACMS surgeon affords the highest success rate of all treatments for skin cancer (up to 99%) because the surgeon serves as the cancer surgeon, pathologist, and reconstructive surgeon in one visit.

Dr. Findley has performed thousands of Mohs procedures over the past 10 years and is one of only a few surgeons in RI/MA that has the experience and training to perform Mohs Surgery for melanoma. 

What is Mohs Micrographic Surgery?

The most common skin cancers are basal cell and squamous cell carcinomas, for which Mohs Surgery offers the highest cure rate. Melanoma, the third most common skin cancer, may also be treated and cured with Mohs Surgery depending on the subtype and pathology. 

What Type of Cancer is Mohs Surgery Used For?

Mohs FAQs

  • Approximately 1 in 5 Americans will develop skin cancer in their lifetime, and unfortunately, the incidence is rising. The most common forms of skin cancer are basal cell carcinoma, squamous cell carcinoma, and melanoma. When these skin cancers are detected early, there is a very high cure rate with proper treatment. Mohs surgery is the gold standard in skin cancer treatment. This procedure offers the lowest risk of recurrence for most skin cancers because 100% of the surgical margins are examined on-site by the surgeon at the time of the procedure.

  • The surgeon is able to provide the highest level of care to her patients by completely removing skin cancer in a single surgical setting and following this immediately with the reconstruction. Since real-time microscopic examination is utilized, the areas involved with cancer can be pinpointed and traced to their deep and peripheral roots, and then only those areas involved are selectively excised. This results in removal of as little normal tissue as possible, which has important implications for the complexity of reconstruction required and the duration of healing. Mohs surgery is therefore safe and convenient, and psychologically ideal for patients to know they are leaving the office skin cancer-free. This procedure is also the most cost-effective approach, reducing the likelihood of recurrence and the resulting treatments that this would incur. Additionally, the fees associated with multiple office visits and pathology readings, and in-hospital treatment, are avoided.

  • Yes, however, Mohs Surgery helps to minimize scarring as much as possible. The functional and cosmetic outcomes are maximized because the surgeon tries to remove only the tissue involved by cancer cells and preserve all of the normal tissue possible. We make every effort to obtain an optimal cosmetic result for our patients.

  • If you are referred, instructed or request a pre-operative visit, you’ll speak with Dr. Findley and have all your questions answered. This also gives her the opportunity to examine your skin cancer and surrounding skin, review your pathology report with you, and discuss any pertinent history. She can then determine the best form of treatment and customize her approach, as well as explain the expected course of healing. Our team will work with you to schedule the surgery date. If we do not have a pathology report, we may perform a biopsy at the initial visit. If Dr. Findley suspects a growth is skin cancer, the first step is obtaining an accurate diagnosis through examination, followed by a biopsy which is then sent for pathology. Once this report is received, she can then determine the best modality of treatment.

    All patients will be photographed before treatments as well as immediately after surgery and again after healing. These photographs become a part of your medical record.

  • Try to come to the procedure well-rested. If you are taking any medications, take them as usual unless we direct otherwise. If you take aspirin or aspirin-containing products or blood thinners, do NOT discontinue your blood thinners without consulting with Dr. Findley or your other managing physicians first. No fasting is required the day or night before. East breakfast and bring a book or magazine with you on the day of surgery. When you arrive, you will be brought back into a surgical room where the surgeon will talk through a detailed consent. The biopsied area will be identified and confirmed by you and the surgeon. The area will be numbed and then the tumor will be removed. Again, several advantages of this technique are that we can minimize how much normal tissue is removed and we can test the area under the microscope the same day. If cancer cells are identified under the microscope, the surgeon will return to remove additional tissue (“take a layer”), and this process will be repeated until the area is cleared of the tumor. Each step of the surgical procedure can take anywhere from 30 minutes to a few hours (the latter may be applicable to Mohs for melanoma).

  • Depending on the type of skin cancer being treated, processing the tissue can sometimes require special staining, so the total length of the procedure can be anywhere from 2-5 hours or longer. Much of this time will be spent in the exam or waiting room. Several surgical stages and microscopic examinations may be required. Please visit our Pre/Post Surgery Instructions for a detailed overview of what to expect on the date of your procedure.