Thomas Knackstedt, MD, Nathaniel J. Jellinek, MD

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Presentation transcript:

Limitations and challenges of nail unit dermoscopy in longitudinal melanonychia Thomas Knackstedt, MD, Nathaniel J. Jellinek, MD Journal of the American Academy of Dermatology Volume 76, Issue 2, Pages e71-e72 (February 2017) DOI: 10.1016/j.jaad.2016.09.049 Copyright © 2016 Terms and Conditions

Fig 1 Dermoscopy of nail apparatus melanoma in situ (NAMis) of the left great toe in a 9-year-old boy showing light-brown longitudinal pigmentation with central darker brown yet regular streak. Inset: Clinical appearance of biopsy-proven NAMis with 3.5-mm wide light-brown longitudinal melanonychia with subtle pigmentation of the lateral nailfold. Journal of the American Academy of Dermatology 2017 76, e71-e72DOI: (10.1016/j.jaad.2016.09.049) Copyright © 2016 Terms and Conditions

Fig 2 Dermoscopy of nail apparatus melanoma in situ (NAMis) of the left fourth finger (ring finger) in a 25-year-old woman showing regular medium-brown lines with distal splinter hemorrhage. Inset: Clinical appearance of biopsy-proven NAMis with a 4-mm wide medium-brown longitudinal melanonychia without proximal nailfold pigmentation. Journal of the American Academy of Dermatology 2017 76, e71-e72DOI: (10.1016/j.jaad.2016.09.049) Copyright © 2016 Terms and Conditions