Skin cancer is the most common cancer in the United States. The most frequent types of these tumors are basal cell and squamous cell carcinomas. The vast majority of these cancers are small and readily treatable, but larger and more aggressive tumors can be life threatening. Smaller and less aggressive lesions can be removed with a wide local excision, however lesions that are larger, more aggressive and those in areas allowing limited margins are often removed by a specialized dermatologist called a Mohs surgeon. Mohs surgeons reconstruct a large number of the defects created by the surgery themselves.