作者对17例外阴硬化萎缩性苔癣及治疗后有显效者8例进行光、电镜观察,另检查了3例外阴正常者作为对照。治疗前硬萎可见上皮细胞萎缩,细胞间隙增大(基底细胞间隙增大明显),细胞表面微绒毛与细胞间隙标粒均减少,细胞内黑色素颗粒减少或消失,细胞核周围有空泡形成。个别基底细胞膜有轻度缺损。基底细胞伸向真皮的微突, The authors performed light and electron microscopy observations on 17 cases of crypto-atrophic atrophic mosses and 8 cases who had significant effects after treatment. The other 3 cases with negative yin normals were used as controls. Atrophy of epithelial cells before treatment, atrophy of epithelial cells, enlargement of intercellular spaces (clearance of basal interstitial space), reduction of microvilli and intercellular spaces on the cell surface, reduction or disappearance of intracellular melanin particles, and formation of vacuoles around the nucleus. Individual basal cell membranes have mild defects. Basal cells protrude into the dermis,