目的：探讨CT在预测鼻腔及鼻窦内翻乳头状瘤起源中的应用价值。方法回顾性分析24例鼻腔鼻窦内翻性乳头状瘤中的CT影像及手术资料，并且与鼻内镜所见的肿瘤的起源部位进行对比，并做相关性分析，研究CT所显示骨炎部位同手术所见肿瘤起源部位的关系。结果病变以中鼻道为中心，呈不规则软组织肿块，同时侵犯同侧鼻窦；24例患者中的19例骨炎部位与肿瘤的根蒂部位一致，一致性达79.16％，提示根据CT影像中骨增生部位可预计肿瘤的起源部位。结论 CT能较好的判断肿瘤的侵及范围，CT影像中的骨炎与鼻腔鼻窦内翻性乳头状瘤的肿瘤起源部位有较高的一致性，CT影像中骨质的变化可以在术前预测肿瘤的起源部位，有助于提高手术效率。%Objective To evaluate the value of CT in the prediction of the origins of sinonasal inverted papilloma (SNIP). Methods Sinonasal CT images and operation records of 24 cases with sinonasal inverted papilloma were retrospectively analyzed , and the correlation between the predicted and actual site of tumour attachment was calculated. Results The tumor usually showed a irregular soft tissue mass around the middle nasal meatus,which invaded homolateral sinuses. CT images revealed that 19 of these lesions coincided with the actual origin of tumors,the concordance between the osteitis sign on CT images and the actual tu-mor origin was 79.16%. Conclusion CT can better display the invasive scope of tumor very well. There was a relatively high con-cordance between the origin of the SNIP and osteitis sign on CT. According to osseous diversity on CT could predict the the origins of tumors,which helps to improve the operational efficiency.
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