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Mohs Surgery

Mohs Micrographic surgery is the most advanced and effective skin cancer treatment available today. As the most exact and precise of tumor removal, it minimizes the chance of cancer recurrence and lessens the potential for scarring or disfigurement.

This outpatient procedure utilizes a laboratory, microscope, and tumor maps to evaluate 100% of the surgical margin. With this technique, we are able to track skin cancer down to its roots. It offers the highest chance for cure of any removal technique.


Why Does My Skin Cancer Need Mohs Surgery?

Mohs Surgery is appropriate when:

  • The cancer is in an area where it is important to preserve healthy tissue for maximal cosmesis and function such as the nose, eyelids, lips, ears, fingers, toes and genitals.
  • The cancer has recurred after a previous treatment
  • The cancer is large
  • The edges of the cancer are difficult to see with the naked eye
  • The tumor has aggressive characteristics

For other details on Mohs surgery, visit https://www.mohssurgery.org/patient-resources/patient-faqs/
Or https://www.mohssurgery.org/wp-content/uploads/2017/08/mohs-Brochure-without-bleedlines.pdf


I give Dr. Andy Shors a five star rating. He is a great addition to the Flathead Valley medical community. I have had Mohs surgery twice with him, on my nose and forehead. Both surgeries were successful and it is difficult to see any scarring at all.
— Terry Swanson
I would recommend Dr. Shors to everybody. I had surgery with Dr. Shors 1 year ago and the stiches barely show. I grew up in California and have had issues with skin cancer. This surgery was so much better than previous facial surgeries I have had. He could recognize my anxiety and instantly put me at ease. My point is that he cares about you and it shows. Best doctor I have.
— Ginny King
Dr. Shors and his complete staff are the most congenial and excellent professionals I have ever been associated with…I was absolutely amazed at the way my face healed up after the cancer was removed. No one can see the scarring. I have referred the procedure and Dr. Shors to all my friends and family.
— Lavon Eastman
I have dealt with skin cancer for the past 25 years. But in the past I have seen general dermatologists. Dr. Shors is the first Mohs surgeon I have seen. He is one of the most unique doctors I have ever worked with. Dr. Shors and his staff are truly professional, friendly, and very thorough. He treats his patients with the utmost respect, explains all the steps to be taken well in advance. He is always concerned about any pain that might exist during the surgery and after. I have had three surgeries this year for basal cell and squamous cell. In the evening he called to check on me to make sure I wasn’t having any difficulties. He is one doctor I have to say goes the extra mile and delivers. If I would grade him on a scale 1 to 10, 10 being the highest, I would definitely give him a 10.
— Gary Hembd, Sr.

Meet Dr. Shors

Dr. Andrew Shors received his M.D. with honors distinction from the University of Washington and then completed his dermatology residency in Seattle as chief resident.  His strong interest in skin cancer led him to publish multiple articles on melanoma.  In 2007, he was named the director of the Group Health Cooperative Dermatology and Mohs surgery services, which provided care for over 500,000 Washington residents.  He was the primary surgical dermatologist for over a decade with Group Health, and worked closely with two Mohs surgeons in providing surgical care for skin cancer.  During this time he became proficient at reconstructive procedures such as skin and cartilage grafting, complex repairs, and flaps.  In 2015, he dedicated an additional year to learning Mohs surgery with one of the surgeons in his clinic.  Prior to bringing Mohs surgery to the Flathead Valley, he assisted in over 800 Mohs procedures.  This was in addition to the thousands of facial repairs he has done over his career.  Since starting the Mohs surgery service at Dermatology Associates, Dr. Shors receives referrals from throughout Northwest Montana and performs 700-850 Mohs procedures annually.  He averages 1.7 Mohs stages per skin cancer, which is considered an excellent benchmark.

Dr. Shors was voted by his peers as one of the top dermatologists in Seattle 9 times during his time there.  These surveys were published in Seattle Met and Seattle magazines.  He is a Clinical Associate Professor at the University of Washington, and a fellow of the American Society for Mohs Surgery, American Society for Dermatologic Surgery, American Academy of Dermatology, American Board of Dermatology, and a member of the International Transplant Skin Cancer Collaborative and Alpha Omega Alpha honor medical society.  He is a past president of the Seattle Dermatologic Society.  A native of Cut Bank, his medical career has taken him to hospitals in Africa and South America.  His wife, Dr. Heidi Shors, is an upper extremity surgeon at Northwest Orthopedics, and they have three children.  

Click here to read Dr. Shors' CV