鼻腔及鼻窦内翻性乳头状瘤是一种较少见但并不罕见的疾病。好发于鼻腔侧壁或上颌窦,筛窦。世界卫生组织已将鼻腔,鼻窦区良性乳头状新生物定名为过渡性乳头状瘤。本病名称曾达20余种,最常用的是内翻性乳头状瘤,schneiderian乳头 Nasal and paranasal sinuses Inverted papilloma is a rare but not uncommon disease. Occur in the nasal wall or maxillary sinus, ethmoid sinus. The World Health Organization has named the neonatal benign papillary neoplasm in the nasal and sinus area as transitional papilloma. The name of the disease has reached more than 20 species, the most commonly used is inverted papilloma, schneiderian nipple