From dermoscopedia

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 Editor: Ralph P. Braun

 Author(s): Ralph P. Braun
Description This chapter describes the histopathological correlation of the 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. term rosettesFour bright white dots or clods arranged together as a square (or a four leaf clover)
Author(s) Ralph P. Braun
Responsible author Ralph Braun→ send e-mail
Status released
Status update July 2, 2018
Status by Ralph P. Braun


These structuresThis glossary term has not yet been described. correlate histopathologically with altered collagen in the dermis (fibrosis). The birefringent properties of collagen bundles causes rapid randomization of polarized lightThis glossary term has not yet been described. and this is, why collagen appears bright white and more conspicuous under polarized dermoscopy.

Shiny white streakslines radial (always at periphery) streaks Reed nevus melanoma recurrent nevus Christalline structures

are white shiny linear streaks that are seen under polarized dermoscopy, but not under nonpolarized dermoscopy. The white streaks are oriented parallel, and sometimes also orthogonal (perpendicular) to each other. Chrysalis structuresolt term for Chrysalis / Cristalline Structures can be seen in scars, dermatofibromas, basal cell carcinomas, and also in melanomas and Spitz neviThis glossary term has not yet been described..
Shiny white blotches and strandsWhite structures in the form of circles, oval structures, or large structureless areas that are bright-white longer and less well defined lines oriented parallel or distributed haphazardly, or forming blotches (shiny white clods). Seen only under polarized dermoscopy.
RosettesFour bright white dots or clods arranged together as a square (or a four leaf clover)
Shiny white areasThis glossary term has not yet been described.
Shiy white structures schematic 28.jpg