Results We learn that coronal CT with assistant horizontal CT scan can make a very clear display about subtie structure of Paranasal sinus, lesion area and extent.

• 结果冠状位CT扫描鼻窦病变发现率高,辅以水平CT扫描,鼻窦精细结构、病变范围和程度能够清楚地显示,符合术中所见。