RT Book, Section A1 Scher, Richard K. A1 Bonilla, Gisela Torres A1 DeYampert, Nicole A2 Kelly, A. Paul A2 Taylor, Susan C. A2 Lim, Henry W. A2 Serrano, Ana Maria Anido SR Print(0) ID 1161544804 T1 Biology of Nails T2 Taylor and Kelly's Dermatology for Skin of Color, 2e YR 2016 FD 2016 PB McGraw-Hill Education PP New York, NY SN 9780071805520 LK dermatology.mhmedical.com/content.aspx?aid=1161544804 RD 2024/03/29 AB KEY POINTSNail matrix melanocytes in skin of color contain mature melanosomes that produce nail plate pigmentation.Melanonychia in multiple nails reduces but does not eliminate the probability of melanoma.Although melanoma of the nail unit is uncommon in skin of color, acral locations, including nails, occur disproportionately more frequently.Over 90% of melanonychias arise from the distal rather than the proximal nail matrix.Melanomas are more frequent in the great toe and thumb than in other digits.Most melanomas arising from melanonychia striata are in situ melanomas.