脊柱成骨细胞瘤的CT特点

CT features of spinal osteoblastoma

目的探讨成骨细胞瘤(Osteoblastoma)的CT影像特征,提高对该病的诊断准确性。方法采集本院29例经过手术病理诊断的成骨细胞瘤的患者,所有入选患者的影像材料进行对比探讨,分析成骨细胞瘤的CT影像表现。结果良性26例,侵袭性3例。28例表现膨胀性骨溶解破坏病灶,内有数量不等的斑点状钙化和骨化,大多数边缘清晰,见硬化边,形成完整或不完全骨壳,伴有软组织肿块10例,增强扫描后8例明显均匀强化,1例不均匀明显强化,1例轻度强化;其中1例合并葱皮样骨膜反应。1例膨胀性多发骨溶解破坏,内未见斑点状钙化或骨化,边缘清晰,见硬化边。肿瘤的继发改变,1例继发动脉瘤样骨囊肿,1例L1肿瘤的病变,继发病理骨折,10例继发椎管狭窄。结论多层螺旋CT对多数脊柱成骨细胞瘤CT特点显示清晰,可为临床提供明确诊断信息,极少数不典型的,必须临床、病理和影像学密切结合。

Objective To CT image features of the osteoblastoma. Improve the diagnostic accuracy of CT in the patients with the disease. Methods Collection of twenty-nine cases of patients with surgical and pathological diagnosis of the patients with tumor,a comparative study of imaging materials of all selected patients,analysis of osteoblastoma CT image performance. Results Twenty-six cases were benign and three cases were invasive. Twenty-eight cases showed expansile osteolysis destruction lesion,there are a number of patchy calcification and ossification,most of the edges are clear,see the hardened edge,to form a complete or incomplete bone shell,ten cases with soft tissue mass,after enhanced scan,eight cases were significantly enhanced,a case of uneven enhancement,one case of mild strengthening; one case with onion like periosteal reaction. A case of multiple expansile osteolysis damage,there was no calcification or ossification,and the edge was clear,see hardened edge. Secondary changes in the tumor,one case of secondary aneurysm bone cyst,a case of first lumbar vertebra tumor lesions,secondary pathological fracture,ten cases of secondary spinal stenosis. Conclusion Multi slice spiral CT in most of the spine of the CT characteristics of the cell show clear,provide clear diagnostic information for clinical,A very small number of atypical,must be closely combined with clinical,pathological and imaging.