TY - CHAP M1 - Book, Section TI - Chapter 191. Pigmented Nail Disorders A1 - Usatine, Richard P. A1 - Smith, Mindy A. A1 - Chumley, Heidi S. A1 - Mayeaux, E.J. Y1 - 2013 N1 - T2 - The Color Atlas of Family Medicine, 2e AB - An African American medical student presented with a new dark band on her index finger for 1 year (Figure 191-1). The dark color and the lack of melanonychia in other fingers made this concerning. A biopsy of the nail matrix was performed and the result showed a benign nevus. SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/03/29 UR - accessmedicine.mhmedical.com/content.aspx?aid=57683279 ER -