Doctors who use the Mohs micrographic surgery technique make multiple small incisions to remove skin cancers a little bit at a time, states the University of California, San Francisco School of Medicine. The school's Department of Dermatology offers an illustration of the procedure on UCSF.edu.
Using the Mohs surgery technique, doctors try to remove cancer cells from cosmetically sensitive areas such as the face while preserving as much healthy tissue as possible, states UCSF School of Medicine. However, because skin cancer often invades the structures below the skin, the surgical defect is sometimes large. Reconstructive surgery often minimizes disfigurement, as evidenced by the before-and-after photographs on Dematology-center.com, the website of the Center for Dermatology Care.