脊柱孤立性纤维瘤的影像学诊断

发布时间：2018-04-25 14:11

本文选题：孤立性纤维瘤 + 脊椎肿瘤　；参考：《中国医学影像学杂志》2017年11期

【摘要】：目的探讨脊柱孤立性纤维瘤(SFT)的CT和MRI表现,提高影像诊断的准确性。资料与方法回顾性分析经病理证实的8例脊柱SFT的CT和MRI征象。8例患者均行CT和MRI扫描,分析病变位置、形态、大小、密度/信号、边界、病变内部情况、邻近骨质破坏情况及强化特点等。结果 8例患者经病理证实良性4例,恶性4例。6例表现为跨椎间孔生长的哑铃形软组织肿块,1例位于椎管外呈分叶状,1例位于椎管内髓外硬膜下呈长梭形;6例出现邻近骨质膨胀性或溶骨性破坏,1例呈压迫性骨缺损,1例无明显骨质破坏。CT扫描显示肿瘤呈等/混杂密度。MRI扫描T1WI呈等/低信号;6例T2WI呈等/稍高信号,2例呈混杂信号。所有病灶增强扫描均呈明显不均匀强化。结论脊柱SFT紧贴或环绕硬膜生长呈分叶状或哑铃形,MRI信号特征明显,T1WI多呈等/低信号,T2WI多呈稍高/等信号,常伴骨质破坏。
[Abstract]:Objective to investigate CT and MRI findings of spinal solitary fibroma and to improve the accuracy of imaging diagnosis. Materials and methods CT and MRI scans were performed in 8 cases of spinal SFT proved pathologically by CT and MRI. The location, shape, size, density / signal, boundary and internal condition of the lesion were analyzed. Destruction of adjacent bone and enhancement characteristics. Results 4 cases of benign disease were confirmed by pathology in 8 cases. Malignant 4 cases: dumbbell type soft tissue mass with growth across intervertebral foramen: 1 case is lobulated outside the spinal canal, 1 case is subdural spindle-shaped in the spinal canal, 6 cases have adjacent bony swelling or osteolytic destruction 1 case. One case presented compression bone defect. Ct scan showed that the tumor presented iso-/ hybrid density. T1WI showed iso-low signal intensity in 6 cases, T2WI showed equal / slightly high signal intensity in 2 cases. All the lesions showed uneven enhancement. Conclusion the spinal SFT with or around the dura mater grows in lobular or dumbbell shape. The MRI signal features of the spinal cord on T1WI are more iso-/ hypointense and slightly higher / isointense on T2WI, and often accompanied by bone destruction.
【作者单位】：北京大学第三医院放射科;北京大学国际医院放射科;
【基金】：北京市自然科学基金(7164309) 国家自然科学基金(81701648)
【分类号】：R445.2;R730.44;R738

【相似文献】