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目的：通过分析骶骨神经源性肿瘤的Ｘ线和ＣＴ表现，提高其诊断水平。材料与方法：６例骶骨神经源性肿瘤，其中神经鞘瘤４例，恶性神经鞘瘤１例，神经纤维瘤１例。对其平片及ＣＴ表现进行分析。结果：平片表现：骶骨神经源性肿瘤多位于上部骶椎，偏侧性生长，骶孔或骶骨内压性扩大破坏或变形及多囊状膨胀溶骨性骨质破坏；边缘骨质硬化。ＣＴ表现：膨胀的溶骨破坏区被软组织肿块充填，骨壁变薄，肿块无钙化。肿瘤破坏骨壁或骶孔侵入软组织及邻近骨质时应考虑为恶性。结论：ＣＴ能提供平片不能显示的更多信息，疑有骶骨肿瘤时宜做ＣＴ检查。骶骨神经源性肿瘤要与骶骨脊索瘤、巨细胞瘤鉴别。
Objective: To improve the diagnosis of sacral neurogenic tumors by analyzing the X-ray and CT findings. Materials and Methods: Six patients with sacral neurogenic tumors, including 4 schwannoma, 1 malignant schwannoma and 1 neurofibroma. The plain film and CT performance analysis. Results: plain film showed: Sacral neurogenic tumors are located in the upper part of the sacral vertebra, lateral growth, sacral foramen or sacral pressure to expand or destroy the deformation and multi-cystic swelling osteolytic bone destruction; marginal sclerosis. CT manifestations: Expansive osteolysis area was filled with soft tissue mass, bone thinning, no calcification of the mass. Tumor destruction of the bone or sacral hole invasion of soft tissue and adjacent bone should be considered as malignant. Conclusion: CT can provide more information can not be displayed plain film, in the case of suspected sacral tumor should do CT examination. Sacral neurogenic tumors and sacral chordoma, giant cell tumor identification.