Mohs surgery is named after Dr. Frederic Mohs who developed this specialized treatment for the removal of skin cancer. This method differs from other methods of treating skin cancer by using complete microscopic examination of the margin of surgically removed tissue and detailed mapping techniques that allow the surgeon to track and remove all extensions of the skin cancer. Mohs is a staged processing technique that offers an alternative to standard excision techniques, and that has been shown to be the most effective method to completely remove skin cancers.