A prospective study of patients with large congenital melanocytic nevi and the risk of melanoma
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Anais brasileiros de dermatologia (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0365-05962017000200200 |
Resumo: | Abstract: Background: Large congenital melanocytic nevus (LCMN) is considered a risk factor for melanoma, although the magnitude of this risk is controversial. Objective: To evaluate the risk of melanoma development in patients with LCMN seen at a dermatology referral center in Brazil during a twelve-year period. To the best of our knowledge, there are no published similar studies on large congenital melanocytic nevus in South America. Methods: Our prospective cohort included only patients with congenital nevi ≥20cm. The cumulative risk of developing melanoma and the standardized morbidity ratio were calculated for patients followed up prospectively for at least 1 month. Results: Sixty-three patients were enrolled in this study. One patient who developed melanoma prior to enrollment was excluded, and five were eliminated because of insufficient follow-up time. Mean follow-up for the remaining 57 patients was 5.5 years (median 5.2 years). Median age of entry into the study was 2.6 years. Most patients (75.4%) underwent only clinical observation. Melanomas occurred in 2 (3.5%) patients. Five-year cumulative risk for melanoma was 4.8% (95% CI: 1.9-11.5%). Standardized morbidity ratio was 1584 (95% CI: 266-5232, p<0.001). Study limitations: The small sample size reduces the accuracy of risk estimates. Conclusions: This study analyzed prospectively for the first time data from South America demonstrating that patients with LCMN have a higher risk of developing melanoma than the general population (p<0.001). |
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Anais brasileiros de dermatologia (Online) |
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A prospective study of patients with large congenital melanocytic nevi and the risk of melanomaMelanomaNevus, pigmentedNevi and melanomasRiskAbstract: Background: Large congenital melanocytic nevus (LCMN) is considered a risk factor for melanoma, although the magnitude of this risk is controversial. Objective: To evaluate the risk of melanoma development in patients with LCMN seen at a dermatology referral center in Brazil during a twelve-year period. To the best of our knowledge, there are no published similar studies on large congenital melanocytic nevus in South America. Methods: Our prospective cohort included only patients with congenital nevi ≥20cm. The cumulative risk of developing melanoma and the standardized morbidity ratio were calculated for patients followed up prospectively for at least 1 month. Results: Sixty-three patients were enrolled in this study. One patient who developed melanoma prior to enrollment was excluded, and five were eliminated because of insufficient follow-up time. Mean follow-up for the remaining 57 patients was 5.5 years (median 5.2 years). Median age of entry into the study was 2.6 years. Most patients (75.4%) underwent only clinical observation. Melanomas occurred in 2 (3.5%) patients. Five-year cumulative risk for melanoma was 4.8% (95% CI: 1.9-11.5%). Standardized morbidity ratio was 1584 (95% CI: 266-5232, p<0.001). Study limitations: The small sample size reduces the accuracy of risk estimates. Conclusions: This study analyzed prospectively for the first time data from South America demonstrating that patients with LCMN have a higher risk of developing melanoma than the general population (p<0.001).Sociedade Brasileira de Dermatologia2017-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0365-05962017000200200Anais Brasileiros de Dermatologia v.92 n.2 2017reponame:Anais brasileiros de dermatologia (Online)instname:Sociedade Brasileira de Dermatologia (SBD)instacron:SBD10.1590/abd1806-4841.20175176info:eu-repo/semantics/openAccessViana,Ana Carolina LeiteGoulart,Eugênio Marcos AndradeGontijo,BernardoBittencourt,Flávia Vasqueseng2017-05-16T00:00:00Zoai:scielo:S0365-05962017000200200Revistahttp://www.anaisdedermatologia.org.br/https://old.scielo.br/oai/scielo-oai.phpabd@sbd.org.br||revista@sbd.org.br1806-48410365-0596opendoar:2017-05-16T00:00Anais brasileiros de dermatologia (Online) - Sociedade Brasileira de Dermatologia (SBD)false |
dc.title.none.fl_str_mv |
A prospective study of patients with large congenital melanocytic nevi and the risk of melanoma |
title |
A prospective study of patients with large congenital melanocytic nevi and the risk of melanoma |
spellingShingle |
A prospective study of patients with large congenital melanocytic nevi and the risk of melanoma Viana,Ana Carolina Leite Melanoma Nevus, pigmented Nevi and melanomas Risk |
title_short |
A prospective study of patients with large congenital melanocytic nevi and the risk of melanoma |
title_full |
A prospective study of patients with large congenital melanocytic nevi and the risk of melanoma |
title_fullStr |
A prospective study of patients with large congenital melanocytic nevi and the risk of melanoma |
title_full_unstemmed |
A prospective study of patients with large congenital melanocytic nevi and the risk of melanoma |
title_sort |
A prospective study of patients with large congenital melanocytic nevi and the risk of melanoma |
author |
Viana,Ana Carolina Leite |
author_facet |
Viana,Ana Carolina Leite Goulart,Eugênio Marcos Andrade Gontijo,Bernardo Bittencourt,Flávia Vasques |
author_role |
author |
author2 |
Goulart,Eugênio Marcos Andrade Gontijo,Bernardo Bittencourt,Flávia Vasques |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Viana,Ana Carolina Leite Goulart,Eugênio Marcos Andrade Gontijo,Bernardo Bittencourt,Flávia Vasques |
dc.subject.por.fl_str_mv |
Melanoma Nevus, pigmented Nevi and melanomas Risk |
topic |
Melanoma Nevus, pigmented Nevi and melanomas Risk |
description |
Abstract: Background: Large congenital melanocytic nevus (LCMN) is considered a risk factor for melanoma, although the magnitude of this risk is controversial. Objective: To evaluate the risk of melanoma development in patients with LCMN seen at a dermatology referral center in Brazil during a twelve-year period. To the best of our knowledge, there are no published similar studies on large congenital melanocytic nevus in South America. Methods: Our prospective cohort included only patients with congenital nevi ≥20cm. The cumulative risk of developing melanoma and the standardized morbidity ratio were calculated for patients followed up prospectively for at least 1 month. Results: Sixty-three patients were enrolled in this study. One patient who developed melanoma prior to enrollment was excluded, and five were eliminated because of insufficient follow-up time. Mean follow-up for the remaining 57 patients was 5.5 years (median 5.2 years). Median age of entry into the study was 2.6 years. Most patients (75.4%) underwent only clinical observation. Melanomas occurred in 2 (3.5%) patients. Five-year cumulative risk for melanoma was 4.8% (95% CI: 1.9-11.5%). Standardized morbidity ratio was 1584 (95% CI: 266-5232, p<0.001). Study limitations: The small sample size reduces the accuracy of risk estimates. Conclusions: This study analyzed prospectively for the first time data from South America demonstrating that patients with LCMN have a higher risk of developing melanoma than the general population (p<0.001). |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-03-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0365-05962017000200200 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0365-05962017000200200 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/abd1806-4841.20175176 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Dermatologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Dermatologia |
dc.source.none.fl_str_mv |
Anais Brasileiros de Dermatologia v.92 n.2 2017 reponame:Anais brasileiros de dermatologia (Online) instname:Sociedade Brasileira de Dermatologia (SBD) instacron:SBD |
instname_str |
Sociedade Brasileira de Dermatologia (SBD) |
instacron_str |
SBD |
institution |
SBD |
reponame_str |
Anais brasileiros de dermatologia (Online) |
collection |
Anais brasileiros de dermatologia (Online) |
repository.name.fl_str_mv |
Anais brasileiros de dermatologia (Online) - Sociedade Brasileira de Dermatologia (SBD) |
repository.mail.fl_str_mv |
abd@sbd.org.br||revista@sbd.org.br |
_version_ |
1752126421812117504 |