A preliminary evaluation of dermoscopy in the diagnosis of facial actinic keratosis

VernacularTitle:皮肤镜诊断面部光线性角化病的初步研究
Author: Ruilong GU ; Xiaodong CHEN ; Lixiong GU
Publication Type:Journal Article
Keywords: Actinic keratosis; Dermoscopy; Diagnosis
From: Chinese Journal of Dermatology 2010;43(11):770-772
CountryChina
Language:Chinese
Abstract: Objective To evaluate the diagnostic ability of dermoscopy in facial actinic keratosis.Methods Forty patients with facial lesions suspected for actinic keratosis were enrolled from April 2009 to November 2009. There were 27 males and 13 females among these patients aged from 46 to 88 years. The disease course varied from 2 to 20 years. Lesional specimens were obtained from the subjects and underwent dermatoscopic and histopathologic examinations. The sensitivity, specificity and consistency with pathology were calculated for dermoscopy in the diagnosis of nonpigmented facial actinic keratosis. Results The sensitivity, specificity, Youden index and Kappa index of dermoscopy were 90.91%, 88.89%, 79.80% and 0.798(χ2 = 0.25, P >0.05) respectively in the diagnosis of facial nonpigmented actinic keratosis made by one dermatologist,86.36%, 94.44%, 80.80% and 0.800 (χ2 = 0.25, P > 0.05) respectively in that made by another dermatologist.Conclusion There is a high consistency between dermoscopy and histopathology in the diagnosis of facial nonpigmented actinic keratosis.