摘要
目的 描述骨折或骨转移所致单椎体塌陷性病变的MRI表现 ,探讨其鉴别诊断价值。方法 对 3 3例单椎体塌陷性病变行MR检查 ,其中 2 9例临床证实 ,4例穿刺活检证实 ,良性 13例 ,恶性 2 0例 ,分析其MRI表现。结果 与良性病变相比 ,恶性者常伴瘤周水肿 ,边界模糊 ,受累椎体鲜有残存骨髓影 ,受侵附件多呈膨胀性改变 ,常伴椎旁软组织影 ,强化欠均匀 ,追随观察病灶增大变多或无明显改变。结论 MRI能较好鉴别单椎体塌陷性病变的良恶性。
Objective To describe the MRI manifestations of solitary vertebral collapse (SCV) caused by benign compression fracture or malignant bone metastases, and to discuss the MR diagnostic value in this diseases entity. Methods Total 33 cases, 29 clinically follow up proved and 4 pathologically biopsy proved of SCV were analyzed. There were 13 cases of benign compression fractures caused by senile osteoporosis and 20 resulted from metastases pathologic fracture. Results Compared with benign SVC, MR imaging of malignant SVC demonstrated poorly defined margin of the intravertebral lesion due to the paralesional edema, seldom remained fat of the vertebral body, often pedicle involvement with expanded contour, some with obvious paravertebal soft tissue and inhomogeneous enhancement. Follow up MR imaging showed enlargment in size or increase in number of the lesions, or without changes after therapy. Conclusion MRI is helpful to differentiate benign from malignant causes of SCV.
出处
《中国医学影像技术》
CSCD
北大核心
2005年第1期104-107,共4页
Chinese Journal of Medical Imaging Technology
关键词
压缩骨折
椎体
磁共振成像
Compression fracture
Vertebra
Magnetic resonance imaging
