扁平苔癣系常见的口腔粘膜慢性疾患,因病因不明目前尚无理想的治疗方法,近年来我科应用维甲酸局部治疗口腔扁平苔癣21例。疗效较为满意。 1 临床资料 21例口腔扁平苔癣均系门诊患者,除5例曾行病检,大部分依靠临床表现确诊,男8例、女13例, Lichen planus is a common chronic oral mucosa disease, due to etiology unknown there is no ideal treatment, in recent years, our department of retinoic acid local treatment of oral lichen planus in 21 cases. More satisfied with the effect. 1 Clinical data 21 cases of oral lichen planus are out-patient, except for 5 cases had line disease examination, most rely on the clinical manifestations diagnosed, 8 males and 13 females,