鼻唇沟处粟粒至米粒大小肤色质硬丘疹,有透明感
毛发上皮瘤又名囊性腺样上皮瘤(epithelioma adenoids cysticum)、多发性良性囊性上皮瘤(multiple benign cystic epithelioma)及多发性丘疹性毛发上皮瘤(multiple papular tricho