Correlation of dermoscopic structures on facial skin

From dermoscopedia

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 Editor: Oriol Yélamos

 Author(s): Oriol Yélamos     ·  Ralph P. Braun
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Description This chapter describes the histopathological corrlation of 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. criteriameasure of how well one variable or set of variables predicts an outcome on facial skinThis glossary term has not yet been described.
Author(s) Oriol Yélamos · Ralph P. Braun
Responsible author Oriol Yélamos→ send e-mail
Status released
Status update January 1, 2019
Status by Ralph P. Braun

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Facial skinThis glossary term has not yet been described. is characterized by a thin epidermis with a thin stratum corneum, a flat DEJ and multiple pilosebaceous units. These unique features imply that the pigment networkThis glossary term has not yet been described. is replaced by a pseudonetworkA structureless pigment area interrupted by non-pigmented adnexal openings pattern instead of a pigment networkGrid-like pattern consisting of interconnecting pigmented lines surrounding hypopigmented holes..

PseudonetworkA structureless pigment area interrupted by non-pigmented adnexal openings

corresponds to structureless brown pigmentation interrupted by hypopigmented holes (Kittler et al., 2016a). Histologically, the pseudonetwork pattern corresponds to pigmented cells located in the epidermis and in a flattened DEJ interrupted by follicular openings, sebaceous or sweat glands (Marghoob and Braun, 2012; Schiffner et al., 2000).

Diagnosisis the identification of the nature and cause of a certain phenomenon. Diagnosis is used in many different disciplines with variations in the use of logic, analytics, and experience to determine "cause and effect". In systems engineering and computer science, it is typically used to determine the causes of symptoms, mitigations, and solutions of tumoral lesions occurring on the faceis a central body region of sense and is also very central in the expression of emotion among humans and among numerous other species. can be challenging and generally imply a disruption of a regular pseudonetwork. Diverse dermoscopic structuresThis glossary term has not yet been described. have been associated with LMLentigo Maligna and LM melanomaThis glossary term has not yet been described.: black blotches with obliteration of the follicles and disruption of the pseudonetwork, dark (brown or black) rhomboidal structuresThis glossary term has not yet been described. and zig-zag patternlines angulated or polygonal (non-facial skin) (angulated lines in the interfollicular space), asymmetric follicular openings (incomplete circlesThis glossary term has not yet been described.), gray circles, concentric circles (circles within circles), target-like pattern (dotSee [[Glossary:Dots|Dots]] within a circle) and annular-granular patterndots gray and circles gray (aggregated gray dots or globules in the interfollicular area) (table 5) (Lallas et al., 2016; Schiffner et al., 2000; Tschandl et al., 2015). Histologically, these dermoscopic features correspond to a proliferation of atypical melanocytes along the DEJ and variable follicular and dermal invasion (Gómez-Martín et al., 2017; Schiffner et al., 2000)