鼻腔及鼻窦内翻性乳头状瘤常被误诊为鼻息肉,由于其发展可破坏周围组织,切除后易复发,有恶变倾向,故对此病应予重视。我院于1970～1981年间共收治16例,现分析如下。一、病因本病的病因未明。可能与病毒感染有关,但用光学显微镜[1]或电子显微镜[2]检查均未能证实。文献亦从未见使用自家疫苗治疗此病的报告[3]。认为病毒感染为其病因的依据, Inverted papilloma of the nasal cavity and paranasal sinuses is often misdiagnosed as nasal polyps. Since its development can destroy the surrounding tissue, it is easy to relapse after resection and has a malignant tendency. Therefore, attention should be paid to this disease. Our hospital received 16 cases from 1970 to 1981. The analysis is as follows. First, the cause of the disease is unknown. It may be related to viral infection, but it has not been confirmed by optical microscopy [1] or electron microscopy [2]. The literature has never seen reports using its own vaccine to treat the disease [3]. Think of viral infection as the basis for its cause.