Abstract
Chrysalis, also named shiny white streaks, are white, linear structures only visible with polarized dermoscopy. They have been reported in several tumors included melanomas and Spitz nevi, and their histological substrate is believed to be dermal fibrosis. We have performed a correlation study between the dermoscopic and the histopathological features of 9 Spitz nevi. Chrysalis were present in 4 Spitz nevi (44%) and in all of them there was a high degree of fibroplasia. In one case, chrysalis, evident at the center of the lesion, progressively merged with negative pigment network at the periphery. We suggest that chrysalis and negative pigment network are manifestations of the same histopathological finding: increased collagen occurring at different levels of the dermis.
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