增殖性外毛根鞘瘤恶变１例蔡振鑫邱丙森（上海医科大学附属华山医院，上海２０００４０）患者女；７２岁。阴阜处皮肤结节３０余年，结节约０５ｃｍ×０５ｃｍ，近８个月来逐渐增大，无疼痛不适。体格检查：阴阜处有一圆形皮肤肿块３５ｃｍ×３５ｃｍ大小，与表面... A case of proliferative outer root sheath tumor malignant transformation Cai Zhenxin Qiu Yinson (Huashan Hospital Affiliated to Shanghai Medical University, Shanghai 200040) Female patient; 72 years old. More than 30 years of nodular skin nodules, nodules of 0  5cm × 0  5cm, gradually increased in the past 8 months, no pain and discomfort. Physical examination: the mons pubis has a round skin mass 3  5cm × 3  5cm size, and the surface ...