melanotic macule nail unit Dermoscopic features of matrix nevus (NMN) in adults and children: A comparative analysis Polydactylous longitudinal melanonychia is usually
Polydactylous longitudinal melanonychia is usually benign and can originate from local or systemic causes, including medication intake; monodactylous longitudinal melanonychia may be a sign of melanoma. Authors review the current literature to Nail Unit Melanoma Springer Nature Link Melanocytic Lesions of the Nail Unit PMC Diagnosing And Treating Pigmented Nail Lesions Figure 3 from Clinicopathologic features of 28 cases of nail matrix nevi (NMNs) in Asians: Comparison between children and adults Semantic Scholar Melanonychia Jefferson 2012 Dermatology Research and Practice Wiley Online Library
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