关键词: 秃发, 瘢痕, 皮肤镜检查

Abstract: QI Shi-ling*, ZHAO Ying, ZHANG Xiao-ting, ZHANG Bin, YANG Jian, ZHANG Xing-qi. *Department of Dermatology and Venereology, First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China Corresponding author: ZHANG Xing-qi, Email: xingqi.zhang@aliyun.com 【Abstract】 Objective To investigate the clinical, histopathological and dermoscopic features as well as treatment and prognosis of cicatricial alopecia. Methods Clinical data on 53 patients with cicatricial alopecia were retrospectively collected and studied. Pathological and dermoscopic characteristics, as well as treatment modality and prognosis of cicatricial alopecia were analyzed. Results Cicatricial alopecia was characterized by alopecia, disappearance of follicular ostia, and absence or decrease in the number of polisebaceous gland units. Pathologically, focal liquefactive degeneration of basal cells, follicular keratotic plugs, arborising telangiectasia together with a positive immunofluorescence test were usually suggestive of discoid lupus erythematosus, interface dermatitis suggestive of lichen planopilaris, inflammation and mild disruption of elastic fibers suggestive of classic pseudopelade of Brocq. Mucin deposition between hair follicles and sinking of follicular ostia were pathological and dermoscopic characteristics of alopecia mucinosa. Pustules could be visible in both folliculitis decalvans and dissecting cellulitis/folliculitis, with tufted hairs usually seen in the former, and sinus formation in the later. Lymphocytic disorders were treated with immunosuppressors, and neutrophile disorders with antibiotics and retinoids. Conclusions Histopathological examination plays a determinant role in the diagnosis of cicatricial alopecia, which can cause irreducible damage to hair follicles, and require long term treatment. Early diagnosis and appropriate use of drugs may control the development of cicatricial alopecia, and reduce the occurrence of permanent hair loss. 【Key words】 Alopecia; Cicatrix; Dermoscopy