本研究分析14例经手术病理证实的副鼻窦恶性肿瘤的CT表现。其CT征象有:1、副鼻窦密度增高;2、软组织肿块;3、肿块强化;4、骨质破坏。著者认为调节不同窗宽窗位连续观察有助于发现早期骨质破坏。对上颌窦顶壁骨质破坏的显示则宜采用薄层、重叠扫描技术并作冠矢状面重建或作直接冠状面扫描。本文对鉴别诊断作了讨论。 This study analyzed 14 cases of pathologically confirmed paranasal sinus malignancy CT manifestations. The CT signs are: 1, increased paranasal sinus density; 2, soft tissue mass; 3, mass enhancement; 4, bone destruction. The authors believe that the regulation of different window width continuous observation can help detect early bone destruction. The display of the destruction of the maxillary sinus on the parietal bone should be used thin, overlapping scanning technology and reconstruction of the coronal sagittal plane or for direct coronal scan. This article discusses the differential diagnosis.