摘要
目的:探讨嗅神经母细胞瘤的CT及MRI诊断价值。方法:收集资料完整的经病理证实的嗅神经母细胞瘤5例,回顾性分析嗅神经母细胞瘤的CT和MRI表现。结果:肿瘤中心均位于鼻腔顶部的中后方,形态规则1例,不规则4例。CT像上肿瘤密度多不均匀,5例邻近骨质破坏。MRI示肿瘤信号多不均匀,T1WI以等或稍低信号为主,T2WI以稍高信号为主,明显强化。肿瘤侵犯筛窦4例,眼眶2例,颅内1例。结论:嗅神经母细胞瘤多位于鼻腔顶部的中后方,强化显著,CT可清楚显示肿瘤周围骨质情况,MRI能准确显示肿瘤侵犯范围。
Objective：Explore and discuss the diagnostic value of CT and MRI in esthesioneuroblastoma. Methods： Five cases of es- thesioneuroblastoma proved by surgery and pathology were collected, and the radiological findings of CT and MRI were retrospectively analyzed. Results： The centers of all lesions were located in the middle back part of the upper nasal cavity. One lesion was regular in shape, while the four lesions were irregular. The density of the lesions was often heterogeneous on CT imaging, and bony destruction was seen in 5 cases. The signal intensity of the lesions was often heterogeneous on MRI. There was isointense or slightly hypointense on the T1WI, and isointense or mildly hyperintense on the T2WI. All lesions were obviously enhanced. The lesions invaded the ethmoid sinu- ses in 4 cases,orbits in 2 cases and intracranial structures in lcase. Conclusion： Esthesioneuroblastoma was often found in the middle back part of the upper nasal cavity with obvious enhancement. CT can clearly depict the situation of the adjacent bony changes. MRI can accurately demonstrate its extent.
出处
《川北医学院学报》
CAS
2013年第5期427-430,共4页
Journal of North Sichuan Medical College
基金
四川省卫生厅科研项目(110297)
