Shiny white structures

From dermoscopedia

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 Authored by: Ralph P. Braun     ·  Katrin Kerl

Description In this chapter we describe cristalline structuresThis glossary term has not yet been described. and its histopathological correlation
Author(s) Ralph P. Braun · Katrin Kerl
Owner Ralph Braun→ send e-mail
Status released
Status update May 27, 2017
Status by Ralph P. Braun

Shiny white structures

  • Shiny white streaksShort discrete white lines oriented parallel and orthogonal (perpendicular) to each other seen only under polarized dermoscopy
  • 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 areas
Shiy white structures schematic 28.jpg

Christalline structures, are white shiny linear streakslines, radial (always at periphery) Reed nevus, melanoma, recurrent nevus that are seen under polarized dermoscopyDermoscopy is a non invasive diagnostic method., but not under nonpolarized dermoscopy. The white streaks are oriented parallel, and sometimes also orthogonal (perpendicular) to each other. Chrysalis structures[[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.. These structures 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.