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Beyond classic dermoscopic patterns of dermatofibromas: a prospective research study
BACKGROUND: The usual stereotypical dermoscopic pattern associated with dermatofibromas is a pigment network and central white patch. However, this pattern may be difficult to diagnose in some variant cases. We aimed to describe dermoscopic patterns of dermatofibroma according to its histopathologic...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5605998/ https://www.ncbi.nlm.nih.gov/pubmed/28927449 http://dx.doi.org/10.1186/s13256-017-1429-6 |
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author | Kelati, Awatef Aqil, Nima Baybay, Hanane Gallouj, Salim Mernissi, Fatima Zahra |
author_facet | Kelati, Awatef Aqil, Nima Baybay, Hanane Gallouj, Salim Mernissi, Fatima Zahra |
author_sort | Kelati, Awatef |
collection | PubMed |
description | BACKGROUND: The usual stereotypical dermoscopic pattern associated with dermatofibromas is a pigment network and central white patch. However, this pattern may be difficult to diagnose in some variant cases. We aimed to describe dermoscopic patterns of dermatofibroma according to its histopathological subtypes, with special emphasis on new and rare dermoscopic features. METHODS: This prospective study, which was conducted between September 2015 and May 2016 in the Department of Dermatology, University Hospital Hassan II, Fez, Morocco, included 100 cases of dermatofibroma confirmed on clinical and histological grounds. Each lesion was scored for classic, previously reported, or new dermoscopic features. RESULTS: All our Moroccan patients had a dark skin phototype (Fitzpatrick scale types IV and V). A total of 14 morphological dermoscopic structures were distinguished, and 17 dermoscopic patterns were observed, with the most common pattern being the central white patch and peripheral pigment network (21%). New patterns observed in our study were a white ring around an ulceration (6%), a pigment network with a pigmented ring around follicular openings (2%), and a discreet peripheral network and starlike white patch (3%). A patchy network with white patches was significantly noted in atrophic dermatofibroma (p = 0.01); vascularization was described in both aneurysmal and hemosiderotic dermatofibromas (p = 0.002); and a white ring around an ulceration was noted in aneurysmal dermatofibroma (p < 0.001). CONCLUSIONS: We provide a description of dermoscopic patterns of dermatofibroma according to its histological subtypes in a dark skin phototype, along with a new report of a white ring around an ulceration as a significant pattern in aneurysmal dermatofibroma. |
format | Online Article Text |
id | pubmed-5605998 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-56059982017-09-20 Beyond classic dermoscopic patterns of dermatofibromas: a prospective research study Kelati, Awatef Aqil, Nima Baybay, Hanane Gallouj, Salim Mernissi, Fatima Zahra J Med Case Rep Research Article BACKGROUND: The usual stereotypical dermoscopic pattern associated with dermatofibromas is a pigment network and central white patch. However, this pattern may be difficult to diagnose in some variant cases. We aimed to describe dermoscopic patterns of dermatofibroma according to its histopathological subtypes, with special emphasis on new and rare dermoscopic features. METHODS: This prospective study, which was conducted between September 2015 and May 2016 in the Department of Dermatology, University Hospital Hassan II, Fez, Morocco, included 100 cases of dermatofibroma confirmed on clinical and histological grounds. Each lesion was scored for classic, previously reported, or new dermoscopic features. RESULTS: All our Moroccan patients had a dark skin phototype (Fitzpatrick scale types IV and V). A total of 14 morphological dermoscopic structures were distinguished, and 17 dermoscopic patterns were observed, with the most common pattern being the central white patch and peripheral pigment network (21%). New patterns observed in our study were a white ring around an ulceration (6%), a pigment network with a pigmented ring around follicular openings (2%), and a discreet peripheral network and starlike white patch (3%). A patchy network with white patches was significantly noted in atrophic dermatofibroma (p = 0.01); vascularization was described in both aneurysmal and hemosiderotic dermatofibromas (p = 0.002); and a white ring around an ulceration was noted in aneurysmal dermatofibroma (p < 0.001). CONCLUSIONS: We provide a description of dermoscopic patterns of dermatofibroma according to its histological subtypes in a dark skin phototype, along with a new report of a white ring around an ulceration as a significant pattern in aneurysmal dermatofibroma. BioMed Central 2017-09-20 /pmc/articles/PMC5605998/ /pubmed/28927449 http://dx.doi.org/10.1186/s13256-017-1429-6 Text en © The Author(s). 2017 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. |
spellingShingle | Research Article Kelati, Awatef Aqil, Nima Baybay, Hanane Gallouj, Salim Mernissi, Fatima Zahra Beyond classic dermoscopic patterns of dermatofibromas: a prospective research study |
title | Beyond classic dermoscopic patterns of dermatofibromas: a prospective research study |
title_full | Beyond classic dermoscopic patterns of dermatofibromas: a prospective research study |
title_fullStr | Beyond classic dermoscopic patterns of dermatofibromas: a prospective research study |
title_full_unstemmed | Beyond classic dermoscopic patterns of dermatofibromas: a prospective research study |
title_short | Beyond classic dermoscopic patterns of dermatofibromas: a prospective research study |
title_sort | beyond classic dermoscopic patterns of dermatofibromas: a prospective research study |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5605998/ https://www.ncbi.nlm.nih.gov/pubmed/28927449 http://dx.doi.org/10.1186/s13256-017-1429-6 |
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