牙齿异位于上颌窦内侧壁、底壁、外侧壁,在临床上是常见的,但异位到鼻腔实属罕见,本文报告一例如下。患者高某,男,38岁。近两叁年来左鼻腔经常流脓血性涕,有臭味,并伴有疼痛,不发烧。曾在当地医院多次就诊,发现左鼻 Ectopic the maxillary sinus medial wall, bottom wall, lateral wall, is clinically common, but ectopic to the nasal cavity is rare, this article reports an example below. Patient high, male, 38 years old. Nearly three years left nasal often purulent bloody tears, odor, and accompanied by pain, no fever. Had multiple visits to the local hospital and found the left nose