| 娄路馨,程晓光,白荣杰,张薇,梁伟,张卉.骶骨肿瘤侵犯骶髂关节的CT及MRI表现[J].中国医学影像技术,2011,27(6):1268~1271 |
| 骶骨肿瘤侵犯骶髂关节的CT及MRI表现 |
| CT and MRI manifestations of sacrum tumors involving sacroiliac joint |
| 投稿时间：2011-01-03 修订日期：2011-03-05 |
| DOI： |
| 中文关键词: 骶骨 骨肿瘤 骶髂关节 术前评估 |
| 英文关键词:Sacrum Bone neoplasms Sacroiliac joint Preoperative evaluation |
| 基金项目: |
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| 中文摘要: |
| 目的 分析良、恶性骶骨肿瘤侵犯骶髂关节的CT及MRI表现。方法 观察51例骶骨肿瘤对骶髂关节侵犯的CT和MRI表现。其中骨巨细胞瘤19例,神经鞘瘤6例,神经纤维瘤1例,脊索瘤7例,恶性纤维组织细胞瘤、小细胞肉瘤和梭形细胞肉瘤各1例,软骨肉瘤6例,尤因肉瘤2例,黏液乳头状室管膜瘤1例,转移癌6例。结果 骶髂关节受侵29例(29/51,56.86％),其中双侧骶髂关节受侵11例,单侧受侵18例。骶髂关节受侵发生率在良性肿瘤患者中为53.85%(14/26),在恶性患者中为60.00％(15/25)。CT表现为关节双侧骨质破坏、关节面消失,软组织肿块占据骶髂关节;MRI表现为骶髂关节双侧骨质信号消失,被肿瘤信号取代。结论 骶骨恶性肿瘤常侵犯骶髂关节。骶骨良性肿瘤中,骨巨细胞瘤最易侵犯骶髂关节。 |
| 英文摘要: |
| Objective To observe CT and MRI manifestations of the invasion of sacroiliac joint by benign and malignant sacrum tumor. Methods CT and MR images of 51 patients with the invasion of sacroiliac joint by sacrum tumors, including 19 giant cell tumors, 6 schwannomas, 1 neurofibroma, 7 chordomas, 1 malignant fibrohistiocytoma, 1 small cell sarcoma, 1 spindle cell sarcoma, 6 chondrosarcomas, 2 Ewing sarcomas, 1 myxopapillary ependymoma and 6 metastases were analyzed. Results Sacroiliac joint invasion was found in 29 patients (29/51, 56.86％). Bilateral invasion of sacroiliac joint occurred in 11, while 18 unilateral invasion occurred in 18 cases. The rate of invasion of sacroiliac joint was 53.85% (14/26) in patients with benign tumors and 60.00％ (15/25) in patients with malignant tumors. Bilateral bone destruction of the joints, disappearance of articular surface and the replacement of sacroiliac joint by soft tissue mass were observed on CT. MRI showed that the signal of bilateral sacroiliac joint were replaced by tumor signal. Conclusion Sacroiliac joint is easily to be invaded by malignant sacrum tumors, as well as by giant cell tumor. |
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