Colors

From dermoscopedia

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 Editor: Ralph P. Braun

 Author(s): Oriol Yélamos     ·  Katrin Kerl     ·  Ralph P. Braun     ·  Daniel Morgado     ·  Constanza Riquelme-Mc Loughlin
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Description In this chapter we cover the importanceThis glossary term has not yet been described. of colorsThis glossary term has not yet been described. in dermoscopyThe examination of [skin lesions] with a 'dermatoscope'. This traditionally consists of a magnifier (typically x10), a non-polarised light source, a transparent plate and a liquid medium between the instrument and the skin, and allows inspection of skin lesions unobstructed by skin surface reflections. Modern dermatoscopes dispense with the use of liquid medium and instead use polarised light to cancel out skin surface reflections.. ColorsThis glossary term has not yet been described. are important becaus they provide important information on the type and anatomical locaiton of the pigment in the skin and its appearance in dermoscopy.
Author(s) Oriol Yélamos · Katrin Kerl · Ralph P. Braun · Daniel Morgado · Constanza Riquelme-Mc Loughlin
Responsible author Ralph Braun→ send e-mail
Status released
Status update July 8, 2018
Status by Ralph P. Braun


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Colors are very important in dermoscopic evaluation. Most of the colors present in the skin originate from an increase in a given chromophore on the skinThis glossary term has not yet been described., such as pigment (brown, black, gray, blue), lipids or keratin (yellow), collagen (white) or blood (red) (Marghoob and Braun, 2012; Woltsche et al., 2017). The most important chromophore in pigmented lesions is melanin (Marghoob and Braun, 2012).

HP colors 41.jpg

When melanin is located in the stratum corneum or in the upper epidermis appears as black on dermoscopy; when it located in the mid or low epidermis it appears as brown, and it appears blue-gray when it is present in the dermis (figure 1) (Malvehy et al., 2006; Woltsche et al., 2017). Knowing the colors on dermoscopy is relevant since this can helpRefers to giving assistance or support to others for mutual benefit identify the deepest component of a melanocyticThis glossary term has not yet been described. tumorThis glossary term has not yet been described. (a blue area will probably reveals its deepest component).

Other important determinants of lesion color include hemoglobin in red blood cells (pink to red colors), lipids or keratin (yellow) and collagen fibers in the dermis (white colorColor (American English) or colour (Commonwealth English) is the characteristic of human visual perception described through color categories, with names such as red, yellow, purple, or blue.). Some colors, especially when associated with selected dermoscopic structuresThis glossary term has not yet been described., also have important histopathologic correlates, such as white globules (associated with balloon-cell changes) [1], homogeneous yellow to orange areas (associated with cell xanthomization) [2] or black lacunaeThis glossary term has not yet been described. (associated with blood thrombosis).

Some colors, especially when associated select dermoscopic structures, also have important histopathologic correlates, such as white globules (associated with balloon-cell changes) (Jaimes et al., 2011), homogeneous yellow to orange areas (associated with cell xanthomization) (Bañuls et al., 2015) or black lacunae (associated with blood thrombosis).



ReferencesThis is material contained in a footnote or bibliography holding further information.
  1. Jaimes et al.: White globules correlate with balloon cell neviThis glossary term has not yet been described. nests. J. Am. Acad. Dermatol. 2011;65:e119-e120. PMID: 21920229. DOI.
  2. Bañuls et al.: Yellow and orange in cutaneous lesions: clinical and dermoscopic data. J Eur Acad Dermatol Venereol 2015;29:2317-25. PMID: 26369295. DOI.