摘要
目的：分析累及咽旁间隙肿物的影像学特征。材料与方法：总结分析了１９例经手术病理证实的累及咽旁间隙肿物的ＭＲＩ、ＣＴ、ＭＲＡ和ＤＳＡ表现。包括腮裂囊肿４例、颈静脉球瘤３例、颈动脉体瘤４例、神经鞘瘤３例、鼻咽癌侵入咽旁间隙５例。１５例行ＭＲＩ检查、９例行ＣＴ扫描、３例行ＭＲＡ检查、５例行ＤＳＡ检查。结果：ＭＲＩ对肿块的大小、形态、位置、与周围组织的关系及继发改变能清晰显示，并可见具有特征性的副神经节瘤瘤内纡曲、匍行的低信号血管影。颈静脉球瘤的ＣＴ特征性表现是颈静脉孔的扩大和骨质破坏。ＭＲＡ和ＤＳＡ对肿瘤血管的显示十分清楚。结论：ＭＲＩ对累及咽旁间隙肿物的诊断优于ＣＴ，若能结合ＣＴ、ＤＳＡ、ＭＲＡ等其他影像学技术，能更准确地评估病变的部位和性质。
Purpose: To investigate imaging findings of tumors invading parapharyngeal space. Materials and methods: MRI, CT, MRA and DSA findings of 19 cases with tumors infiltrating parapharyngeal space proved by surgery and pathology were analysed, including 4 branchial cleft cyst, 3 jugular glomus tumor, 4 carotid body tumor, 3 neurilemoma and 5 carcinoma of nasopharynx involving parapharyngeal space. Fifteen cases underwent MRI scanning, 9 cases had CT scanning, 3 cases MRA and 5 cases DSA. Results: MRI provided clinically useful informations about the size, shape, extent and site of the parapharyngeal space tumors, and also their effects on adjacent structures. The main MRI features of paraganglioma presented as many low signal tortuous and creeping vessels in the tumor. The main CT features of jugular glomus tumor revealed as jugular foramen enlargement with bone destruction. Tumour vessels were clearly displayed by MRA and DSA. Conclusion: MRI were superior to CT in diagnosis of tumors invading parapharyngeal space. The location and nature of the lesions could be diagnsoed accurately by MRI combined with CT or DSA.
出处
《中华放射学杂志》
CAS
CSCD
北大核心
1997年第4期226-230,共5页
Chinese Journal of Radiology
关键词
咽肿瘤
NMR
成像
Pharyngeal neoplasms Magnetic resonance imaging Tomography, X ray computed Angiography
