BACKGROUND: @entity2383 ( @entity2383 ) are white shiny streaks that can only be seen with polarized dermatoscopy. OBJECTIVES: We sought to estimate the prevalence and assess the clinical significance of @entity2383 in melanocytic and @entity75 . METHODS: This was a prospective observational study in which dermatoscopic assessment of lesions was recorded in consecutive @entity1 examined during a 6-month period. In addition, a data set of biopsy-proven @entity320 was retrospectively analyzed. RESULTS: In all, 11,225 lesions in 881 @entity1 were prospectively examined. Retrospectively, 229 @entity320 imaged with polarized dermatoscopy were analyzed. In the prospective data set, a median of 12.7 lesions (range, 1-54) were evaluated per @entity1 . None of clinically diagnosed Clark nevi (n = 9750, 86.8%) demonstrated @entity2383 . Overall, @entity2383 were observed in 206 (1.8%) lesions, most commonly @entity3074 and @entity2318 among nonbiopsied lesions. A total of 265 (2.4%) lesions were biopsied, including 20 @entity320 and 36 nevi. Among biopsied @entity5 , @entity2383 were most commonly observed in @entity1491 (47.6%) and invasive @entity320 (84.6%). @entity320 were more likely to have @entity2383 than biopsied nevi (odds ratio = 9.7, 95% confidence interval 2.7-34.1). In the retrospective data set, @entity2383 were more commonly observed among invasive @entity320 (41%) compared with in situ @entity320 (17%) (odds ratio = 3.4, 95% confidence interval 1.9-6.3, P < .001). The prevalence of @entity2383 correlated with @entity320 (P = .001). LIMITATIONS: Biopsied lesions represent a small percentage of the total number of lesions evaluated. CONCLUSION: Among biopsied @entity5 , @entity2383 are most commonly observed in @entity1491 and invasive @entity320 and rarely seen in nevi. In @entity320 , @entity2383 may reflect increased @entity5 thickness and progression.

The significance of crystalline/chrysalis structures in the diagnosis of melanocytic and XXXX .

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity75 :: ('MESH:D001927', 'Disease') :: ['nonmelanocytic lesions'] @entity2318 :: ('MESH:D002921', 'Disease') :: ['scars'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor', 'malignant lesions'] @entity3074 :: ('MESH:D018219', 'Disease') :: ['dermatofibromas'] @entity320 :: ('MESH:D008545', 'Disease') :: ['melanoma', 'melanomas', 'Melanomas', 'increased melanoma thickness'] @entity1491 :: ('MESH:D002280', 'Disease') :: ['basal cell carcinoma'] @entity2383 :: ('MESH:D028361', 'Disease') :: ['CS', 'Crystalline/chrysalis structures']
@entity75 :: (MESH:D001927,Disease) :: ['nonmelanocytic lesions']
