涎腺异位于下颌骨少见报道 ,而下颌骨之异位涎腺发生乳头状囊腺癌者更属罕见 ,作者报告 1例。病例 ,男 ,48岁 ,农民 ,因右侧下颌骨肿块 10月 ,右耳听力下降 3月于 1999年 4月 3日就诊。体检见 :颌面部明显不对称 ,右侧下颌角区较膨隆 ,表面皮肤正常。右下第一、第二磨牙缺失 , Abnormal salivary glands in the mandible rare reports, and the ectopic salivary glands of the mandibular papillary cystadenocarcinoma is even more rare, the authors report 1 case. Case, male, 48 years old, farmer, due to right mandibular mass in October, right ear hearing loss March on April 3, 1999. Physical examination see: maxillofacial obvious asymmetry, right mandibular angle area more bulging, the surface of the skin is normal. Lower right first, second molar missing,