Quantitative analysis of the dermoscopy image to evaluate the efficacy of facial port‐wine stains (PWS) treatment.

This article discusses the use of dermoscopy, a diagnostic tool, to evaluate the efficacy of treatment for facial port-wine stains (PWS). The study included 61 patients with untreated facial PWS who underwent photodynamic therapy. The researchers used dermoscopy to quantify the efficacy of the treatment by analyzing vessel density and color improvement. They found that vessel density positively correlated with the color of PWS, and changes in vessel density could be used to reflect changes in PWS color. The accuracy and reliability of dermoscopy assessment were compared to visual and colorimeter assessments, and dermoscopy assessment was found to be more consistent with visual assessment, suggesting it may be more suitable for people of East Asian descent. [Extracted from the article]