Yellow dots in trichoscopy: relevance, clinical significance and peculiarities*

Lima, Caren dos Santos; Lemes, Luciana Rodino; Melo, Daniel Fernandes

doi:10.1590/abd1806-4841.20176157

home Tabla de contenido navigate_before Anterior Actual Siguiente navigate_next

Texto (Inglés)

Download PDF (Inglês)

Texto (Inglés)
Download PDF (Inglês) (abre em nova aba)

Whatsapp
BlueSky
Mastodon
Facebook
Mais

home Tabla de contenido

Whatsapp
BlueSky
Mastodon
Facebook
Mais

Texto (Inglés)

Download PDF (Inglês) (abre em nova aba)

Images in Dermatology • An. Bras. Dermatol. 92 (5) • Sep-Oct 2017 • https://doi.org/10.1590/abd1806-4841.20176157 linkcopy

Yellow dots in trichoscopy: relevance, clinical significance and peculiarities^*

Authorship SCIMAGO INSTITUTIONS RANKINGS

Yellow dots are follicular ostium filled with keratin and/or sebum. Initially, they were exclusively associated with alopecia areata. Currently they have also been described in androgenetic alopecia, chronic cutaneous (discoid) lupus erythematosus, and dissecting cellulitis. Due to the growing importance of trichoscopy and its findings in the evaluation of the scalp, this article describes the main diseases in which yellow dots are a common trichoscopic finding, highlighting its characteristics in each dermatosis.

Keywords:
Alopecia; Dermoscopy; Hair diseases

Authorship

person Caren dos Santos Lima

person Luciana Rodino Lemes

person Daniel Fernandes Melo

schoolAlopecia Outpatient Clinic at Hospital Naval Marcílio Dias (HNMD) - Rio de Janeiro (RJ), Brazil.Hospital Naval Marcílio DiasBrazilRio de Janeiro, RJ, BrazilAlopecia Outpatient Clinic at Hospital Naval Marcílio Dias (HNMD) - Rio de Janeiro (RJ), Brazil.schoolPostgraduate Program in Medical Sciences at Hospital Universitário Pedro Ernesto (HUPE) - UERJ - Rio de Janeiro (RJ), Brazil.UERJBrazilRio de Janeiro, RJ, BrazilPostgraduate Program in Medical Sciences at Hospital Universitário Pedro Ernesto (HUPE) - UERJ - Rio de Janeiro (RJ), Brazil.

Mailing address: Caren dos Santos Lima, R. Álvares de Azevedo, 178 - Apto 1201, Icaraí , 24220-021 Niterói, RJ - Brazil. E-mail:
caren.dossantoslima@gmail.com

Conflict of interest: none.

SCIMAGO INSTITUTIONS RANKINGS

Alopecia Outpatient Clinic at Hospital Naval Marcílio Dias (HNMD) - Rio de Janeiro (RJ), Brazil.Hospital Naval Marcílio DiasBrazilRio de Janeiro, RJ, BrazilAlopecia Outpatient Clinic at Hospital Naval Marcílio Dias (HNMD) - Rio de Janeiro (RJ), Brazil.

Postgraduate Program in Medical Sciences at Hospital Universitário Pedro Ernesto (HUPE) - UERJ - Rio de Janeiro (RJ), Brazil.UERJBrazilRio de Janeiro, RJ, BrazilPostgraduate Program in Medical Sciences at Hospital Universitário Pedro Ernesto (HUPE) - UERJ - Rio de Janeiro (RJ), Brazil.

Figures

Figures (4)

Thumbnail

Figure 1 Trichoscopy in alopecia areata. A: Presence of numerous yellow dots, some grouped in pairs (yellow arrows), with regular distribution along the lesion. B: Note multiple pinkish-yellow dots of uniform size and color (blue arrows), some with central dystrophic hairs (yellow arrows). Dermoscopy performed with 3Gen DermLite® II Hybrid M; X10 magnification

Thumbnail

Figure 2 Trichoscopy in androgenetic alopecia. A: Frontal region revealing the presence of yellow dots of different sizes and color, ranging from pale yellow (yellow arrow) to brownish-yellow (blue arrows). Note the irregular distribution of these structures along the affected area. B: Vertex showing multiple yellow dots of varying sizes and colors, some associated with miniaturized hairs. Dermoscopy performed with 3Gen DermLite® II Hybrid M; X10 magnification

Thumbnail

Figure 3 Trichoscopy in chronic cutaneous lupus erythematosus. A: Presence of a large brownish-yellow dot with a double contour in the center of the atrophic area (blue arrow). B: Yellow dots with double contour and irregular dimensions (yellow arrows). Observe the presence of fine arborizing vessels emerging from some yellow dots – “red spider in a yellow dot” – typical of pre-fibrotic stages of the disease (blue arrows). Dermoscopy performed with 3Gen DermLite® II Hybrid M; X10 magnification

Thumbnail

Figure 4 Trichoscopy in dissecting cellulitis. A: Occipital region showing a large single yellow dot, of three-dimensional appearance, resembling a soap bubble (blue arrow). B: Three-dimensional brownish-yellow dots with irregular distribution along the plaque (blue arrows). Observe the presence of dystrophic hairs inside some yellow dots (yellow arrows). Dermoscopy performed with 3Gen DermLite® II Hybrid M; X10 magnification

imageFigure 1 Trichoscopy in alopecia areata. A: Presence of numerous yellow dots, some grouped in pairs (yellow arrows), with regular distribution along the lesion. B: Note multiple pinkish-yellow dots of uniform size and color (blue arrows), some with central dystrophic hairs (yellow arrows). Dermoscopy performed with 3Gen DermLite® II Hybrid M; X10 magnification open_in_new

imageFigure 2 Trichoscopy in androgenetic alopecia. A: Frontal region revealing the presence of yellow dots of different sizes and color, ranging from pale yellow (yellow arrow) to brownish-yellow (blue arrows). Note the irregular distribution of these structures along the affected area. B: Vertex showing multiple yellow dots of varying sizes and colors, some associated with miniaturized hairs. Dermoscopy performed with 3Gen DermLite® II Hybrid M; X10 magnification open_in_new

imageFigure 3 Trichoscopy in chronic cutaneous lupus erythematosus. A: Presence of a large brownish-yellow dot with a double contour in the center of the atrophic area (blue arrow). B: Yellow dots with double contour and irregular dimensions (yellow arrows). Observe the presence of fine arborizing vessels emerging from some yellow dots – “red spider in a yellow dot” – typical of pre-fibrotic stages of the disease (blue arrows). Dermoscopy performed with 3Gen DermLite® II Hybrid M; X10 magnification open_in_new

imageFigure 4 Trichoscopy in dissecting cellulitis. A: Occipital region showing a large single yellow dot, of three-dimensional appearance, resembling a soap bubble (blue arrow). B: Three-dimensional brownish-yellow dots with irregular distribution along the plaque (blue arrows). Observe the presence of dystrophic hairs inside some yellow dots (yellow arrows). Dermoscopy performed with 3Gen DermLite® II Hybrid M; X10 magnification open_in_new

How to cite

linkcopy

Ferramentas do artigo

PDFs
Métricas
Figuras e tabelas
Versiones y traducciones
Como citar este artículo
Artículos relacionados

location_on

Sociedade Brasileira de Dermatologia Av. Rio Branco, 39 18. and., 20090-003 Rio de Janeiro RJ, Tel./Fax: +55 21 2253-6747 - Rio de Janeiro - RJ - Brazil
E-mail: revista@sbd.org.br

rss_feed Acompañe los números de esta revista en su lector de RSS

Versão para download de PDF

PDF

Inglés

Versões e tradução automática

Escolha a versão original do texto ou utilize um serviço de tradução automática.

Versão original do texto

English

Tradução automática

Google Translator (abre serviço externo de tradução)
Microsoft Translator (abre serviço externo de tradução)

Como citar

Escolha um formato para exportar ou selecione um estilo de citação. O conteúdo abaixo pode ser atualizado após a seleção.

Baixar em RIS

Baixar em BIBTEX

Outros formatos de citação e exportação: