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    "textoCompleto" => "<span class="elsevierStyleSections"><p id="par0005" class="elsevierStylePara elsevierViewall">The concept of dysplastic nevus &#40;DN&#41; is somewhat controversial&#46; While DN is not a proven precursor of cutaneous melanoma&#44; several studies suggest that it may be a risk factor&#46; The management of DN is also a topic of some debate&#46; There is no consensus on the optimal approach &#40;observation or re-excision&#41; when a nevus with moderate dysplasia has been excised and the margins are affected&#46; A survey conducted in North America found that 48&#37; of those surveyed would re-excise the lesion&#46; In 2015&#44; the North American Pigmented Lesion Subcommittee suggested that observation may be a reasonable option&#44; although the evidence to support this recommendation was limited&#46;<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a></p><p id="par0010" class="elsevierStylePara elsevierViewall">Recently&#44; Kim et al<a class="elsevierStyleCrossRef" href="#bib0010"><span class="elsevierStyleSup">2</span></a> published the results of a retrospective multicenter study that examined the development of melanoma in 438 patients with excised nevi with moderate dysplasia and compromised margins &#40;467 lesions&#41;&#46; Of these&#44; 50&#46;4&#37; had undergone previous biopsies of dysplastic nevi&#44; 33&#46;2&#37; had a history of melanoma&#44; and 23&#46;8&#37; &#40;83 of 349 patients&#41; had a family history of melanoma&#46; The biopsy methods used were shave &#40;46&#46;4&#37;&#41;&#44; punch &#40;45&#46;3&#37;&#41;&#44; and elliptical &#40;7&#46;7&#37;&#41; excision&#46; Dysplasia was independently assessed by an expert&#46; During a mean follow-up period of 6&#46;9 years &#40;range&#44; 3&#8211;21&#46;3 y&#41;&#44; none of the participants developed melanoma at the site of the excised DN&#46; However&#44; 22&#46;8&#37; developed a primary melanoma at a different site&#46; Of these&#44; 3 patients had metastatic melanoma &#40;2 with invasive melanoma prior to biopsy&#41;&#46; Comparison of those that developed a subsequent cutaneous melanoma with those that did not identified the following risk factors&#58; older age &#40;mean age of 49&#46;7 vs 45&#46;9 years&#59; <span class="elsevierStyleItalic">P</span>&#8239;&#61;&#8239;0&#46;04&#41;&#59; history of previous melanoma &#40;49&#37; vs 9&#46;9&#37;&#59; <span class="elsevierStyleItalic">P</span>&#8239;&#60;&#8239; 0&#46;001&#41;&#59; and a previously biopsied DN &#40;33&#46;5&#37; vs 13&#46;2&#37;&#59; <span class="elsevierStyleItalic">P</span>&#8239;&#60;&#8239; 0&#46;001&#41;&#46; No association was observed for sex or family history of melanoma&#46; Multivariate regression analysis revealed that a history of melanoma &#40;odds ratio &#91;OR&#93;&#44; 11&#46;74&#59; 95&#37;CI&#44; 5&#46;71&#8211;24&#46;15&#59; <span class="elsevierStyleItalic">P</span>&#8239;&#60;&#8239; 0&#46;001&#41; and previous &#40;histologically confirmed&#41; DN &#40;OR&#44; 2&#46;55&#59; 95&#37;CI&#44; 1&#46;23&#8211;5&#46;28&#59; <span class="elsevierStyleItalic">P</span>&#8239;&#61;&#8239; 0&#46;01&#41; were independently associated with the development of melanoma at a site other than that of the DN biopsy&#44; even after adjusting for age&#44; sex&#44; and family history of melanoma&#46;</p><p id="par0015" class="elsevierStylePara elsevierViewall">The results of the study by Kim et al&#44; the largest cohort described to date&#44; are consistent with the findings of previous publications &#40;<a class="elsevierStyleCrossRef" href="#tbl0005">Table 1</a>&#41;&#44;<a class="elsevierStyleCrossRef" href="#bib0015"><span class="elsevierStyleSup">3</span></a> suggesting that observation is a reasonable option in these cases and supporting the hypothesis that DN is not a precursor lesion of melanoma&#44; but an important risk marker&#46; It should be noted that around 70&#37; of cutaneous melanomas develop de novo and not on a pre-existing nevus&#46;</p><elsevierMultimedia ident="tbl0005"></elsevierMultimedia><p id="par0020" class="elsevierStylePara elsevierViewall">In patients with nevi with moderate dysplasia and affected margins after excision&#44; clinical observation may be a valid option&#46; Patients with a previous history of melanoma or 2 DNs &#40;one of which shows moderate dysplasia&#41; should be considered at high risk and followed closely&#46;</p></span>"
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        "nota" => "<p class="elsevierStyleNotepara" id="npar0010">Please cite this article as&#58; Morgado-Carrasco D&#44; Feola H&#44; Fust&#224;-Novell X&#44; Martinez N&#46; FR-Nevus con displasia moderada extirpados con m&#225;rgenes quir&#250;rgicos afectados&#46; &#191;Se deben reextirpar&#63; Actas Dermosifiliogr&#46; 2020&#46; <span class="elsevierStyleInterRef" id="intr0005" href="https://doi.org/10.1016/j.ad.2019.01.028">https&#58;&#47;&#47;doi&#46;org&#47;10&#46;1016&#47;j&#46;ad&#46;2019&#46;01&#46;028</span></p>"
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                  \t\t\t\t  " align="left" valign="\n
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                  \t\t\t\t">Retrospective&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">28&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">ND&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">5&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Kmetz et al&#44; 2009<a class="elsevierStyleCrossRef" href="#bib0025"><span class="elsevierStyleSup">5</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Retrospective&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">26&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">ND&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">6&#46;12 &#40;minimum 5 years&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Not evaluated&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " rowspan="2" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Goodson et al&#44; 2010<a class="elsevierStyleCrossRef" href="#bib0030"><span class="elsevierStyleSup">6</span></a></td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " rowspan="2" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Retrospective</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">65&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Mild&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " rowspan="2" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">&#8805; 2</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " rowspan="2" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " rowspan="2" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Not evaluated</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Moderate&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " rowspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Hocker et al&#44; 2013<a class="elsevierStyleCrossRef" href="#bib0035"><span class="elsevierStyleSup">7</span></a></td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " rowspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Retrospective</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">66&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Mild&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " rowspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">17&#46;4 &#40;range&#44; 0&#8211;29&#46;9&#41;</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " rowspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " rowspan="3" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Not evaluated<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">b</span></a></td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">42&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Moderate&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">7&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Severe&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Hiscox et al&#44; 2017<a class="elsevierStyleCrossRef" href="#bib0015"><span class="elsevierStyleSup">3</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Retrospective&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">147&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Moderate&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3&#46;6 &#40;range&#44; 1&#46;2&#8211;8&#46;7&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Not evaluated&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t ; entry_with_role_rowhead " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Kim et al&#44; 2018<a class="elsevierStyleCrossRef" href="#bib0010"><span class="elsevierStyleSup">2</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Retrospective&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">467&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Moderate&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">6&#46;9 &#40;range&#44; 3&#8211;21&#46;3&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">100 &#40;22&#46;8&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr></tbody></table>
                  """
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                    0 => array:2 [
                      "titulo" => "Addressing the knowledge gap in clinical recommendations for management and complete excision of clinically atypical nevi&#47;dysplastic nevi&#58; Pigmented Lesion Subcommittee consensus statement"
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                        0 => array:2 [
                          "etal" => true
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                            2 => "C&#46; Curiel-Lewandrowski"
                            3 => "J&#46;M&#46; Grichnik"
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                      "titulo" => "Risk of subsequent cutaneous melanoma in moderately dysplastic nevi excisionally biopsied but with positive histologic margins"
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                          "autores" => array:6 [
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                            2 => "M&#46;A&#46; Marchetti"
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                            4 => "G&#46; Lim"
                            5 => "D&#46; Grossman"
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                  "contribucion" => array:1 [
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                      "titulo" => "Recurrence of moderately dysplastic nevi with positive histologic margins"
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                            3 => "T&#46; Rosen"
                            4 => "M&#46; Mir"
                            5 => "A&#46;H&#46; Diwan"
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                      "doi" => "10.1016/j.jaad.2016.09.009"
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                        "tituloSerie" => "J Am Acad Dermatol"
                        "fecha" => "2017"
                        "volumen" => "76"
                        "paginaInicial" => "527"
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                        "tituloSerie" => "Am J Dermatopathol"
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                          "etal" => false
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                            2 => "G&#46; Fisher"
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                            4 => "J&#46;C&#46; Maize"
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                      "titulo" => "Low rates of clinical recurrence after biopsy of benign to moderately dysplastic melanocytic nevi"
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                          "etal" => false
                          "autores" => array:4 [
                            0 => "A&#46;G&#46; Goodson"
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                            2 => "K&#46;M&#46; Boucher"
                            3 => "D&#46; Grossman"
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                  "host" => array:1 [
                    0 => array:1 [
                      "Revista" => array:5 [
                        "tituloSerie" => "J Am Acad Dermatol"
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                        "volumen" => "62"
                        "paginaInicial" => "591"
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                      "titulo" => "Favorable long-term outcomes in patients with histologically dysplastic nevi that approach a specimen border"
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Journal Information
Vol. 111. Issue 8.
Pages 688-689 (October 2020)
Vol. 111. Issue 8.
Pages 688-689 (October 2020)
Resident’s Forum
Open Access
RF-Nevi With Moderate Dysplasia Excised With Positive Surgical Margins: Should We Re-Excise?
FR-Nevus con displasia moderada extirpados con márgenes quirúrgicos afectados. ¿Se deben reextirpar?
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D. Morgado-Carrasco
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morgadodaniel8@gmail.com

Corresponding author.
, H. Feola, X. Fustà-Novell, N. Martinez
Servicio de Dermatología, Hospital Clínic de Barcelona, Universitat de Barcelona, Barcelona, Spain
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Table 1. Summary of Studies on the Follow-up of Excised Dysplastic Nevi with Affected Margins
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The concept of dysplastic nevus (DN) is somewhat controversial. While DN is not a proven precursor of cutaneous melanoma, several studies suggest that it may be a risk factor. The management of DN is also a topic of some debate. There is no consensus on the optimal approach (observation or re-excision) when a nevus with moderate dysplasia has been excised and the margins are affected. A survey conducted in North America found that 48% of those surveyed would re-excise the lesion. In 2015, the North American Pigmented Lesion Subcommittee suggested that observation may be a reasonable option, although the evidence to support this recommendation was limited.1

Recently, Kim et al2 published the results of a retrospective multicenter study that examined the development of melanoma in 438 patients with excised nevi with moderate dysplasia and compromised margins (467 lesions). Of these, 50.4% had undergone previous biopsies of dysplastic nevi, 33.2% had a history of melanoma, and 23.8% (83 of 349 patients) had a family history of melanoma. The biopsy methods used were shave (46.4%), punch (45.3%), and elliptical (7.7%) excision. Dysplasia was independently assessed by an expert. During a mean follow-up period of 6.9 years (range, 3–21.3 y), none of the participants developed melanoma at the site of the excised DN. However, 22.8% developed a primary melanoma at a different site. Of these, 3 patients had metastatic melanoma (2 with invasive melanoma prior to biopsy). Comparison of those that developed a subsequent cutaneous melanoma with those that did not identified the following risk factors: older age (mean age of 49.7 vs 45.9 years; P = 0.04); history of previous melanoma (49% vs 9.9%; P <  0.001); and a previously biopsied DN (33.5% vs 13.2%; P <  0.001). No association was observed for sex or family history of melanoma. Multivariate regression analysis revealed that a history of melanoma (odds ratio [OR], 11.74; 95%CI, 5.71–24.15; P <  0.001) and previous (histologically confirmed) DN (OR, 2.55; 95%CI, 1.23–5.28; P =  0.01) were independently associated with the development of melanoma at a site other than that of the DN biopsy, even after adjusting for age, sex, and family history of melanoma.

The results of the study by Kim et al, the largest cohort described to date, are consistent with the findings of previous publications (Table 1),3 suggesting that observation is a reasonable option in these cases and supporting the hypothesis that DN is not a precursor lesion of melanoma, but an important risk marker. It should be noted that around 70% of cutaneous melanomas develop de novo and not on a pre-existing nevus.

Table 1.

Summary of Studies on the Follow-up of Excised Dysplastic Nevi with Affected Margins

Author, Year  Type of Study  No. of Dysplastic Nevi  Type of Dysplasia  Follow-up Duration, y  Melanoma on Site of Excised Dysplastic Nevus  Melanoma Elsewhere 
Cockerell and Berson, 19854  Retrospective  28  ND 
Kmetz et al, 20095  Retrospective  26  ND  6.12 (minimum 5 years)  Not evaluated 
Goodson et al, 20106Retrospective65  Mild  ≥ 20Not evaluated
Moderate 
Hocker et al, 20137Retrospective66  Mild  17.4 (range, 0–29.9)0Not evaluatedb
42  Moderate 
Severe 
Hiscox et al, 20173  Retrospective  147  Moderate  3.6 (range, 1.2–8.7)  Not evaluated 
Kim et al, 20182  Retrospective  467  Moderate  6.9 (range, 3–21.3)  100 (22.8%) 

Abbreviation: ND, not described.

aStudies based exclusively on the follow-up of nevi with severe dysplasia are not included in this table.

b

No patient presented metastatic melanoma.

In patients with nevi with moderate dysplasia and affected margins after excision, clinical observation may be a valid option. Patients with a previous history of melanoma or 2 DNs (one of which shows moderate dysplasia) should be considered at high risk and followed closely.

References
[1]
C.C. Kim, S.M. Swetter, C. Curiel-Lewandrowski, J.M. Grichnik, D. Grossman, A.C. Halpern, et al.
Addressing the knowledge gap in clinical recommendations for management and complete excision of clinically atypical nevi/dysplastic nevi: Pigmented Lesion Subcommittee consensus statement.
JAMA Dermatol, 151 (2015), pp. 212-218
[2]
C.C. Kim, E.G. Berry, M.A. Marchetti, S.M. Swetter, G. Lim, D. Grossman, et al.
Risk of subsequent cutaneous melanoma in moderately dysplastic nevi excisionally biopsied but with positive histologic margins.
JAMA Dermatol, 154 (2018), pp. 1401-1408
[3]
B. Hiscox, M.R. Hardin, I.F. Orengo, T. Rosen, M. Mir, A.H. Diwan.
Recurrence of moderately dysplastic nevi with positive histologic margins.
J Am Acad Dermatol, 76 (2017), pp. 527-530
[4]
C.J. Cockerell, D.S. Berson.
A retrospective look at dysplastic nevi. What were they in 1978 and how have they fared since?.
Am J Dermatopathol, 7 Suppl (1985), pp. 93-97
[5]
E.C. Kmetz, H. Sanders, G. Fisher, P.G. Lang, J.C. Maize.
The role of observation in the management of atypical nevi.
South Med J, 102 (2009), pp. 45-48
[6]
A.G. Goodson, S.R. Florell, K.M. Boucher, D. Grossman.
Low rates of clinical recurrence after biopsy of benign to moderately dysplastic melanocytic nevi.
J Am Acad Dermatol, 62 (2010), pp. 591-596
[7]
T.L. Hocker, A. Alikhan, N.I. Comfere, M.S. Peters.
Favorable long-term outcomes in patients with histologically dysplastic nevi that approach a specimen border.
J Am Acad Dermatol, 68 (2013), pp. 545-551

Please cite this article as: Morgado-Carrasco D, Feola H, Fustà-Novell X, Martinez N. FR-Nevus con displasia moderada extirpados con márgenes quirúrgicos afectados. ¿Se deben reextirpar? Actas Dermosifiliogr. 2020. https://doi.org/10.1016/j.ad.2019.01.028

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