Shiny white streaks
|Description||This chapter describes 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 shiny white streaksWhite lines that appear parallel and perpendicular to each other on polarized dermoscopy|
|Author(s)||Ralph P. Braun|
|Responsible author||Ralph Braun → send e-mail|
|Status update||July 2, 2018|
|Status by||Ralph P. Braun|
Christalline structuresThis glossary term has not yet been described. are white shiny linear streakslines radial (always at periphery) streaks Reed nevus melanoma recurrent nevus 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.. These structures correlate histopathologically with altered collagen in the dermis (fibrosis). The birefringent properties of collagen bundles cause rapid randomization of polarized lightThis glossary term has not yet been described.. This is the reason collagen appears bright white and more conspicuous under polarized dermoscopy .
An example of shiny white lines as they appear in polarized (right image) as opposed to non-polarized dermoscopy (left image):
ReferencesThis is material contained in a footnote or bibliography holding further information.
- Verzi et al.: The diagnostic value and histologic correlate of distinct patternsThis glossary term has not yet been described. of shiny white streaks for the 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 melanomaThis glossary term has not yet been described.: A retrospective, case-control study. J. Am. Acad. Dermatol. 2018;78:913-919. PMID: 29138058. DOI.