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目的:探讨CT和MRI检查在颈静脉球瘤诊断、鉴别诊断及手术径路选择中的作用与价值。材料和方法:5例经手术证实的颈静脉瘤患者,术前均行CT增强前后扫描,4例行MRI平扫及增强后成像。分析CT和MRI的不同表现,比较其优缺点,并介绍分型与手术径路的关系。结果:按Glasscock-Jackson's分类法,其中Ⅰ型1例,Ⅱ型1例、Ⅲ型2例、Ⅳ型1例。CT能清晰地显示颅底骨质结构的破坏程度及范围,颈静脉孔的扩大以及边缘不规则的侵蚀性破坏是颈静脉球瘤的特征性表现。MRI能更准确地显示肿瘤的大小、与颈内动脉、颈内静脉的关系以及有无颅内侵犯、侵犯的程度。肿瘤内迂曲的流空血管及"椒一盐"征是颈静脉球瘤的特征性MRI表现,结论:CT和MRI结合,能更全面地提供临床诊断及治疗所需的信息,为治疗方法的选择提供可靠的依据。
Objective: To investigate the role and value of CT and MRI in the diagnosis, differential diagnosis and surgical approach of jugular bulb tumors. Materials and Methods: Five cases of surgically confirmed jugular venous malignancies were preoperatively scanned before and after CT enhancement. Four patients underwent MRI plain scan and enhanced imaging. Analyze the different performances of CT and MRI, compare their advantages and disadvantages, and introduce the relationship between classification and surgical approach. RESULTS: According to Glasscock-Jackson’s classification, there were 1 case of type I, 1 case of type II, 2 cases of type III, and 1 case of type IV. CT can clearly show the destruction degree and scope of skull base bone structure. The enlargement of jugular foramen and irregular erosive destruction of the edge are the characteristic manifestations of jugular bulbar tumor. MRI can more accurately show the size of the tumor, the relationship with the internal carotid artery, the internal jugular vein, and whether there is intracranial invasion or invasion. The hollow blood vessels and “salt-salt” sign in the tumor are characteristic MRI features of jugular bulb tumor. Conclusion: The combination of CT and MRI can provide more comprehensive information for clinical diagnosis and treatment. Choose to provide a reliable basis.