Shiny white areas

From dermoscopedia

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 Editor: Ralph P. Braun

 Author(s): Ralph P. Braun
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Description This chapter describes the histopathological correlation of the dermoscopy term shiny white areas
Author(s) Ralph P. Braun
Responsible author Ralph Braun→ send e-mail
Status unknown
Status update July 2, 2018
Status by Ralph P. Braun


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  • Shiny white streaks
  • Shiny white blotches and strands
  • Rosettes
  • Shiny white areas
Shiy white structures schematic 28.jpg

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 structures can be seen in scars, dermatofibromas, basal cell carcinomas, and also in melanomas and Spitz nevi. These structures correlate histopathologically with altered collagen in the dermis (fibrosis). The birefringent properties of collagen bundles causes rapid randomization of polarized light and this is, why collagen appears bright white and more conspicuous under polarized dermoscopy.