Conclusions Enhanced CT scan has some value in the diagnosis of giant cell tumor of sacral bone.

结论CT增强扫描，CT值的定量分析在骶骨骨巨细胞瘤的定性诊断中有一定的导向价值。

Objective to study the methods for reconstruction of pelvic ring after subtotal sacrectomy of primary sacral bone tumor.

目的探讨原发性骶骨肿瘤切除后重建骨盆环的方法。

Objective To investigate the characteristics and the value of enhanced ct scan in the diagnosis of giant cell tumor of sacral bone.

目的探讨骶骨骨巨细胞瘤的CT增强扫描特点及其在诊断中的应用价值。

In the present case, the resection specimen definitely showed islands of metaplastic bone superficial to the muscularis propria, thus excluding sacral invasion.

此例中，切除的标本中很明确的显示出固有肌层浅表的岛状化生骨，因此可以排除骶骨侵犯。