[Clinical applications of reflectance confocal microscopy in the management of cutaneous tumors].

Reflectance confocal microscopy is a noninvasive tool that allows skin cells and structure to be imaged in real time. The technique has been used to assess benign and malignant lesions and has shown great potential in basic research and clinical dermatology. As might be expected, it also has great potential in longitudinal clinical studies and in the evaluation of dynamic processes such as those that occur after exposure to UV radiation or during the tumor response to noninvasive therapy. This article briefly describes the fundamental aspects and basic principles of reflectance confocal microscopy and discusses its clinical applications essentially in the management of cutaneous tumors. We also consider the limitations of the technique associated with the optical properties of the skin, with instrumentation, and with interpretation of the images.