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目的：探讨骨恶性纤维组织细胞瘤的ＣＴ表现及其诊断价值。方法：对１１例手术病理证实的骨恶性纤维组织细胞瘤的ＣＴ表现进行回顾性分析。结果：１１例骨恶性纤维组织细胞瘤的基本ＣＴ表现为（１）溶骨性骨破坏，可呈地图样、虫蚀样或无结构的溶骨性破坏。（２）软组织肿块，范围大于溶骨病变，软组织块内可见钙化点。（３）患骨破坏区呈膨胀性改变。结论：Ｘ线平片仍是检出骨肿瘤的首次检查主要手段，但ＣＴ通常能更清晰显示骨和软组织的解剖和病理结构细节，象肿瘤大小、范围、形状、轮廓、密度、钙化、坏死等，因此，ＣＴ在诊断骨恶性纤维组织细胞瘤上具有重要价值
Objective: To investigate the CT findings and diagnostic value of malignant fibrous histiocytoma of bone. Methods: The CT appearances of 11 cases of malignant fibrous histiocytoma confirmed by pathology were analyzed retrospectively. Results: The basic CT manifestations of 11 cases of malignant fibrous histiocytoma of bone were (1) osteolytic bone destruction, which could be map-like, worm-eaten or unstructured osteolytic destruction. (2) Soft tissue masses, larger than osteolytic lesions, with calcifications visible within the soft tissue mass. (3) The area of bone destruction is expansive. Conclusion: X-ray film is still the primary method for the detection of bone tumors, but CT can usually clearly show the anatomical and pathological details of bone and soft tissue, such as tumor size, size, shape, contour, density, calcification, necrosis. Etc. Therefore, CT is of great value in the diagnosis of malignant fibrous histiocytoma of bone.