The technique being evaluated in this study uses reflectance confocal microscopy in vivo. The term "in vivo" means in/on a living subject. In this study you will be the living subject and the confocal microscope will be placed on your skin to look at your skin lesion. The confocal microscope uses a weak laser light and a sophisticated lens to image the individual cells that make up the skin. Your lesion will be photographed with high resolution photography.