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      Longitudinal melanonychia in a 13-year-old Caucasian boy Translated title: Melanoniquia longitudinal en un niño caucásico de 13 años

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          Subungual Melanocytic Lesions in Pediatric Patients.

          The study of subungual melanocytic lesions can present challenges because of the clinical and histologic characteristics of the nail unit and the difficulty of performing nail biopsies and processing specimens. These lesions can be even more challenging in children due to differences in clinical and epidemiological profiles between the adult and pediatric populations. Many of the clinical features of subungual melanocytic lesions that would raise alarm in an adult do not have the same implications in children. Consensus is also lacking on when a nail biopsy is needed to rule out malignancy in the pediatric setting. In view of these considerations and the rarity of subungual melanoma in childhood, the recommended approach in most cases is a watch-and-wait strategy. Subungual melanocytic lesions in children may also show atypical histopathologic features that are not necessarily associated with aggressive behavior. Subungual melanoma is very rare in childhood, with just 21 cases described to date. None of the patients developed visceral metastasis or died as a result and the diagnosis was controversial in many of the cases. Considering the above and the significantly higher frequency and particular characteristics of longitudinal melanonychia with a benign etiology in children, subungual melanocytic lesions should be managed differently in this setting than in adults. In most cases, a watch-and-wait approach is the most appropriate strategy.
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            Prevalence of longitudinal melanonychia in the white population

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              An Evidence-Based Approach to Pediatric Melanonychia.

              Melanonychia including melanonychia striata in children poses a diagnostic dilemma. Atypical clinical features often raise the possibility of malignancy, and a nail unit biopsy may be recommended. Commensurate with atypical clinical features, the histopathology may also appear alarming. However, accumulating data illustrate that most cases of melanonychia striata are benign and suggest that an alternate approach is often warranted for pediatric patients. Herein, we review the existing data regarding pediatric melanonychia striata and offer an evidence-based approach to its evaluation and management.
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                Author and article information

                Journal
                ijm
                Iberoamerican Journal of Medicine
                Iberoam J Med
                Hospital San Pedro (Logroño, La Rioja, Spain )
                2695-5075
                2695-5075
                2023
                : 5
                : 1
                : 51-53
                Affiliations
                [1] Zaragoza orgnamePediatrics and International Adoption Center Spain
                [2] Zaragoza orgnameDermabia Dermatological Center Spain
                Article
                S2695-50752023000100007 S2695-5075(23)00500100007
                10.53986/ibjm.2023.0004
                99b2c4b9-e415-43aa-95f5-2ea2cc80d280

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 25 November 2022
                : 28 September 2022
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 5, Pages: 3
                Product

                SciELO Spain

                Categories
                Clinical Image

                Melanoma,Pediatric,Nevus,Dermoscopy,Melanonychia,Pigmented lesions,Pediátrico,Dermoscopia,Melanoniquia,Lesiones pigmentadas

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