摘要
目的探讨CT和MRI对颈静脉孔区脊索瘤的诊断价值。方法回顾性分析7例经手术病理证实颈静脉孔区脊索瘤。术前2例行CT平扫;7例术前均行MRI平扫+增强。结果 2例CT表现为溶骨性破坏及软组织肿块,内可见点片状钙化,边缘侵蚀性。7例T_1WI呈低信号或等信号,T_2WI呈显著高信号,增强后轻中度强化,其中3例可见网格状强化;海绵窦、咽旁间隙、桥小脑角、小脑半球及脑干可见累及。结论 CT及MRI能较准确地显示肿瘤形态、部位、内部结构及与邻近结构的关系,对绝大多数病例可作出诊断,为临床制定手术方式及术后随访观察起到重要作用。
Objective To investigate the value of CT and MRI findings in jugular foramen chordoma. Methods 7 patients with pathologically-proved jugular foramen chordoma were retrospectively analyzed. Plain CT scanning was performed in 2 cases, and both plain and enhanced MRI were undergone in 7 cases before operation. Results 2 tumors with plain CT scanning showed dissolving bone destruction, soft tissue mass, points of calcification within and erosion in edges. In MR images of 7 cases, the tumor showed hypo- or isointensity relative to gray matter on T1 WI and extremely high signal intensity on T2 WI. The tumor displayed mild to moderate enhancement on contrast-enhanced T1 WI and grid-shaped intensification was visible in 3 cases. Cavernous sinus, lateral pharyngeal space, cerebellopontine angle, cerebellar hemisphere and brainstem were found to be implicated in 7 cases. Conclusion CT, and MRI enable to display the tumor＇s morphology, position, internal structure and its relationship with adjacent structures accurately. Approved to provide prompt diagnosis in most cases, they can play crucial roles for formulating clinical operation and post-operation follow-ups.
出处
《中国医药指南》
2016年第36期13-14,25,共3页
Guide of China Medicine
