White shiny structures seen under polarized dermoscopy take on 3 distinct morphological appearances. One category includes white shiny lines, which are often orthogonally oriented.1 This structure also has a metaphoric name known as chrysalis, although some authors believe that chrysalis is a misnomer and prefer that it be replaced with the term crystalline. (We are in agreement with this opinion.) White shiny areas, also known as white shiny clods, appear as larger structureless areas of shiny white color. Finally, rosettes (also a metaphoric term) appear as 4 shiny white points arranged in a pattern reminiscent of a 4-leaf clover.2
Liebman TN, Rabinovitz HS, Balagula Y, Jaimes-Lopez N, Marghoob AA. White Shiny Structures in Melanoma and BCC. Arch Dermatol. 2012;148(1):146. doi:10.1001/archdermatol.2011.618
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