目的:探讨并分析皮肤镜下日光性角化病的表现,评价其临床应用价值.方法:选择笔者医院2017年1月-2018年1月临床拟诊为日光性角化病的患者作为研究对象,共120例,所有患者都行皮肤镜及病理检查.以病理结果为金标准,计算皮肤镜诊断日光性角化病的敏感度、特异度等.结果:以病理结果为金标准,计算皮肤镜诊断日光性角化病的敏感度是97.2%,特异度是83.3%,阳性预测值是98.1%,阴性预测值是76.9%.结论:皮肤镜可作为诊断日光性角化病的重要辅助手段,可避免不必要的创伤性组织活检.%Objective To discuss and analyze the dermascopic manifestation of actinic keratosis, and to evaluate the value of dermascopy in clinical application. Methods A total of 120 patients diagnosed actinic keratosis according to clinical manifestation were recuited in our department from January 2017 to January 2018. These patients underwent dermascopic and histopathological examination. The sensitivity, specificity, positive predictive value and negative predictive value of dermacopy for the diagnosis of AK were calculated. Histopathological examination was used as the gold standard. Results The sensitivity, specificity, positive predictive value, negative predictive value of dermacopy for the diagnosis of AK was 97.2%,83.3%,98.1% and 76.9%, respectively. Conclusion Dermascopy can be applied as a assistant method to diagnose actinic keratosis, avoiding unnecessary traumatic tissue biopsy.
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