Atrophic acne scars improved in both groups without significant side effects. Additionally, the fractional laser was a more effective treatment option for acne scars, but the fractional radiofrequency microneedle device offered good adherence and short downtime.

BackgroundMelasma is an acquired pigmentary disorder that is often therapeutically challenging. Recent evidence suggests that vascular abnormalities are involved in melasma pathogenesis. Pulsed-dye laser (PDL) is considered as standard therapy for vascular lesions.ObjectiveTo assess the efficacy of PDL combined with low-fluence Q-switched Nd:YAG laser (QSNY) in the treatment of melasma.MethodsSeventeen melasma patients were enrolled in this study. All subjects were treated with a total of nine QSNY treatment sessions at one-week intervals. Three sessions of PDL were additionally performed immediately after QSNY treatment on the half of the face at baseline, week 4, and week 8. The melasma area and the severity index (MASI) score was calculated at the baseline, one week after the last treatment (week 9), as well as at the follow-up 8 weeks after the last treatment (week 16). Dermoscopic images at the baseline were classified as to whether the visibly widened capillaries were detected or not.ResultsMASI scores on the PDL+QSNY and QSNY side decreased significantly during the study period. There was no significant difference in the MASI score change between both sides in all periods. However, seven patients who had visibly widened capillaries on dermoscopy showed significant difference in both sides in terms of changes in the MASI score during treatment.ConclusionPDL combined with QSNY may be considered as a safe and effective treatment for melasma patients who show visibly widened capillaries on dermoscopy.

BACKGROUND Treatment of nevus sebaceus (NS) on the scalp is usually surgical excision, but the optimal timing is debatable. The scalp presents significant challenges to the reconstructive surgeon because the lack of elasticity of the scalp makes the repair of defects difficult. OBJECTIVE The aim of this study was to investigate the optimal timing for surgical excision of NS on the scalp through postoperative outcomes. METHODS The authors retrospectively reviewed the postoperative cosmetic results of patients with a follow-up period of 12 to 15 months. The variables analyzed were patient demographics, preoperative tumor size, location, operative time, cosmetic results, and complications. RESULTS This study enrolled 62 patients, including 30 adults and 32 children. The main complications were hair loss, hypertrophic scar, and widening of the scar. The overall complication rate was 17.7%, and the complication rate in children (9/32, 28.1%) was higher than that in adults (2/30, 6.7%) (p < .05). Tumor location, shape, and size showed no association with complications. CONCLUSION Complications after surgical excision of NS on the scalp are more likely to occur in children than in adults. On the basis of these findings, surgical excision of NS on the scalp can be delayed until after childhood.