本文报道了作者于25年间所见到的30例鼻和(或)鼻窦内翻性乳头状瘤。本病为一罕见粘膜上皮瘤,其发病率在原发鼻肿瘤中占0.5～4％。内翻性乳头状瘤可发生于任何年龄,但最常见于50～70岁。本组病例男性为多,男女之比为2:1。病因尚不清楚,似与变态反应、吸烟和其它鼻腔鼻窦疾病无关。临床症状主要为鼻阻,其次为流涕,鼻出血和颌面疼痛,此与其它三很多鼻疾病的症状类似。放射学检查,特别是CT对确定肿瘤的浸润范围很重 This article reports 30 cases of inverted papilloma of the nose and/or sinuses seen by the author in 25 years. The disease is a rare mucosal epithelial tumor, the incidence of which accounts for 0.5 to 4% of primary nasal tumors. Inverted papilloma can occur at any age, but is most common in people aged 50 to 70 years. There are many males in this group, and the male to female ratio is 2:1. The etiology is not yet clear and seems to have nothing to do with allergy, smoking, and other nasal and sinus diseases. The main clinical symptoms are nasal obstruction, followed by salivation, epistaxis, and maxillofacial pain. This is similar to the symptoms of the other three or many nasal diseases. Radiological examination, especially CT, is very important in determining the extent of tumor invasion