RT Book, Section A1 Usatine, Richard P. A1 Smith, Mindy A. A1 Chumley, Heidi S. A1 Mayeaux, E.J. SR Print(0) ID 57683279 T1 Chapter 191. Pigmented Nail Disorders T2 The Color Atlas of Family Medicine, 2e YR 2013 FD 2013 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-176964-8 LK accessmedicine.mhmedical.com/content.aspx?aid=57683279 RD 2024/04/24 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.