Abstract
The incidence of melanoma has increased during the last few years. Melanoma care and survival can be improved by early diagnosis, which can be facilitated by the use of noninvasive imaging modalities. Here we review 5 modalities available in clinical practice. Total body photography is used to follow patients at high risk for melanoma by detecting new lesions or subtle changes in existing lesions. Dermoscopy is an effective noninvasive technique for the early recognition of melanoma by allowing clinicians to visualize subsurface structures. Computer-assisted diagnostic devices are fully automated analysis systems with the capacity to classify lesions as benign or malignant with limited involvement from clinicians. Confocal scanning laser microscopy is an in vivo and noninvasive technology that examines the skin at a resolution comparable to that of histology. High-resolution ultrasound is an adjunct diagnostic aid mainly for the early detection of lymph node metastasis. Applications and limitations of each technology are discussed.
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