出血坏死性息肉绝大多数原发于鼻腔或上颌窦,但可扩展侵犯邻近结构.乃至破坏上颌窦前壁或内壁。如病变局限在上颌窦内者,初期常不能及时确诊而贻误治疗;后期又极易误诊为恶性肿瘤。本病在病理认识和诊断名称方而极不统一,有许多值得研究商榷之处。现将1975～1986年收治的35例分析如下。 The vast majority of hemorrhagic necrotic polyps originating in the nasal cavity or maxillary sinus, but can expand violations of adjacent structures, and even destroy the anterior or medial maxillary sinus wall. Such as lesions confined in the maxillary sinus who often can not be diagnosed early and delaying the treatment; the latter can easily misdiagnosed as malignant tumors. The disease is very inconsistent in the pathology and diagnosis of the name side, there are many worth discussing. Now 35 cases admitted from 1975 to 1986 are as follows.