鼻腔鼻窦额外牙为一少见鼻疾。我科曾遇1例。特报告如下。患者女，25岁。因右侧鼻腔流黄脓涕1个月，味臭，于1997年8月11日来我科就诊。患者自发病以来无鼻塞及鼻出血史。前鼻镜检查见右鼻腔底部距前鼻孔约1cm处有软组织隆起，其后方有一约0．6cm×1．0cm大小黄白色肿物，质硬 Nasal sinus extra teeth as a rare nasal disease. My department had a case. Special report is as follows. Female patient, 25 years old. Because of the right nasal flow yellow purulent tears 1 month, smell bad, in August 11, 1997 to our department. Since the onset of patients without nasal congestion and nose bleeding history. Before the nose examination see the right nasal cavity at the bottom of the nose from about 1cm at the soft tissue uplift, followed by a 0.6cm × 1.0cm size of the yellow-white mass, hard