Dermatoscopy of flat pigmented facial lesions—evolution of lentigo maligna diagnostic criteria

Recognition of facial lentigo maligna (LM) is often difficult, particularly at early stages. Algorithms and multivariate diagnostic models have recently been elaborated on the attempt to improve the diagnostic accuracy. We conducted a cross-sectional and retrospective study to evaluate dermatoscopi...

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Autores principales: Miguel Costa-Silva, Ana Calistru, Ana Margarida Barros, Sofia Lopes, Mariana Esteves, Filomena Azevedo
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Lenguaje:EN
Publicado: Mattioli1885 2018
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spelling oai:doaj.org-article:a69e554613674b1aaf1a1f0a47ec2e1f2021-11-17T08:30:02ZDermatoscopy of flat pigmented facial lesions—evolution of lentigo maligna diagnostic criteria2160-9381https://doaj.org/article/a69e554613674b1aaf1a1f0a47ec2e1f2018-07-01T00:00:00Zhttp://dpcj.org/index.php/dpc/article/view/469https://doaj.org/toc/2160-9381 Recognition of facial lentigo maligna (LM) is often difficult, particularly at early stages. Algorithms and multivariate diagnostic models have recently been elaborated on the attempt to improve the diagnostic accuracy. We conducted a cross-sectional and retrospective study to evaluate dermatoscopic criteria aiding in diagnosis of flat pigmented facial lesions (FPFL). We examined 46 FPFL in 42 Caucasian patients and found that 4 of 20 dermatoscopic criteria reached the significance level required for features indicating malignancy namely, hyperpigmented follicular openings, obliterated follicular opening, annular-granular structures, and pigment rhomboids. Concomitant presence of at least 2 or 3 of the 4 mentioned criteria was significantly more frequent in LM than in pigmented actinic keratosis (PAK). However, despite more frequently seen in LM, these features were also displayed in some of the PAK and other FPFL, so we found them not specific for LM. Although dermatoscopy enhances the diagnostic accuracy in evaluating FPFL, histopathology remains the gold standard for correct diagnosis, making evident the need for improvements in early noninvasive diagnosis of LM. Miguel Costa-SilvaAna CalistruAna Margarida BarrosSofia LopesMariana EstevesFilomena AzevedoMattioli1885articledermatoscopylentigo malignaflat pigmented lesionfaceDermatologyRL1-803ENDermatology Practical & Conceptual, Vol 8, Iss 3 (2018)
institution DOAJ
collection DOAJ
language EN
topic dermatoscopy
lentigo maligna
flat pigmented lesion
face
Dermatology
RL1-803
spellingShingle dermatoscopy
lentigo maligna
flat pigmented lesion
face
Dermatology
RL1-803
Miguel Costa-Silva
Ana Calistru
Ana Margarida Barros
Sofia Lopes
Mariana Esteves
Filomena Azevedo
Dermatoscopy of flat pigmented facial lesions—evolution of lentigo maligna diagnostic criteria
description Recognition of facial lentigo maligna (LM) is often difficult, particularly at early stages. Algorithms and multivariate diagnostic models have recently been elaborated on the attempt to improve the diagnostic accuracy. We conducted a cross-sectional and retrospective study to evaluate dermatoscopic criteria aiding in diagnosis of flat pigmented facial lesions (FPFL). We examined 46 FPFL in 42 Caucasian patients and found that 4 of 20 dermatoscopic criteria reached the significance level required for features indicating malignancy namely, hyperpigmented follicular openings, obliterated follicular opening, annular-granular structures, and pigment rhomboids. Concomitant presence of at least 2 or 3 of the 4 mentioned criteria was significantly more frequent in LM than in pigmented actinic keratosis (PAK). However, despite more frequently seen in LM, these features were also displayed in some of the PAK and other FPFL, so we found them not specific for LM. Although dermatoscopy enhances the diagnostic accuracy in evaluating FPFL, histopathology remains the gold standard for correct diagnosis, making evident the need for improvements in early noninvasive diagnosis of LM.
format article
author Miguel Costa-Silva
Ana Calistru
Ana Margarida Barros
Sofia Lopes
Mariana Esteves
Filomena Azevedo
author_facet Miguel Costa-Silva
Ana Calistru
Ana Margarida Barros
Sofia Lopes
Mariana Esteves
Filomena Azevedo
author_sort Miguel Costa-Silva
title Dermatoscopy of flat pigmented facial lesions—evolution of lentigo maligna diagnostic criteria
title_short Dermatoscopy of flat pigmented facial lesions—evolution of lentigo maligna diagnostic criteria
title_full Dermatoscopy of flat pigmented facial lesions—evolution of lentigo maligna diagnostic criteria
title_fullStr Dermatoscopy of flat pigmented facial lesions—evolution of lentigo maligna diagnostic criteria
title_full_unstemmed Dermatoscopy of flat pigmented facial lesions—evolution of lentigo maligna diagnostic criteria
title_sort dermatoscopy of flat pigmented facial lesions—evolution of lentigo maligna diagnostic criteria
publisher Mattioli1885
publishDate 2018
url https://doaj.org/article/a69e554613674b1aaf1a1f0a47ec2e1f
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AT anamargaridabarros dermatoscopyofflatpigmentedfaciallesionsevolutionoflentigomalignadiagnosticcriteria
AT sofialopes dermatoscopyofflatpigmentedfaciallesionsevolutionoflentigomalignadiagnosticcriteria
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