Dermoscopy: What's New?

The 2009 article reviewed advancements in dermoscopy, highlighting its improved diagnostic accuracy for skin lesions, particularly melanoma, by 5% to 30% compared to visual inspection. It discussed second-generation devices with better optics and LED illumination, the use of polarized and nonpolarized light, and the introduction of the CASH algorithm for lesion assessment. The article also evaluated computer-assisted dermoscopy systems, which were found to overdiagnose benign lesions and be less effective than experienced dermatologists. It emphasized the diagnostic significance of vascular structures and multiple blue-gray dots for melanoma. Additionally, the article covered the use of dermoscopy in general dermatology, including for conditions like lichen planus, psoriasis, and scabies, and provided management rules to avoid missing melanoma. It also detailed the diagnostic process for nail pigmentation and the identification of hair and scalp disorders, such as alopecia areata. The conclusion stressed the importance of staying updated with dermoscopy due to the growing body of research and its expanding applications.