Image by Cristiano Maia via FlickrIn certain situations, your dermatologist may refer you for a specialized technique called Mohs micrographically controlled surgery. In this method, performed by specially trained dermatologic surgeons, the skin cancer is removed under local anesthesia in an office setting and microscopic sections are prepared on slides while you wait. Your Mohs surgeon examines the slides to determine if all the cancer cells have been removed. If not additional layers are taken until the cancer is completely excised. The advantage of this technique is that a minimum amount of tissue is removed and all the edges of the specimen are carefully studied. This method has a high cure rate, but is not required for all skin cancers. In general, most dermatologists agree that recurrent skin cancers (skin cancers that were previously treated and have come back, incompletely removed skin cancers, large skin cancers, and skin cancers in cosmetically important areas), may benefit from the Mohs technique. After the skin cancer has been removed using this method, it maybe allowed to heal naturally or reconstructive surgery using a skin flap or skin graft may be performed. Also see: Skin Cancer, Dermatologic Surgery 
