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目的 :描述骨肉瘤的CT征象并探讨CT应用价值。材料与方法 :总结分析了 2 4例经CT检查和手术病理证实的骨肉瘤CT表现 ,并对 5例不完全确诊和误诊的原因进行剖析。结果 :①骨肉瘤CT扫描可清楚地显示骨质改变、软组织肿块、骨膜反应及骨髓侵犯。②CT检查在显示病灶空间结构、软组织块影及髓腔侵犯等方面优于常规X片。③造成术前误诊或不完全确诊的原因有 :将瘤骨与软骨钙化相混淆 ,患者年龄偏大及CT表现极不典型。结论 :CT可作为检查和诊断骨肉瘤的一种很有价值的手段。
Objective: To describe the CT features of osteosarcoma and to explore the value of CT. Materials and Methods: The CT findings of 24 cases of osteosarcoma confirmed by CT and pathology were analyzed and summarized. The causes of incomplete diagnosis and misdiagnosis were analyzed in 5 cases. Results: ① CT scan of osteosarcoma can clearly show bone changes, soft tissue mass, periosteal reaction and bone marrow invasion. ②CT examination in the display of the spatial structure of the lesion, soft tissue mass and medullary cavity violations than conventional X-ray film. ③ preoperative misdiagnosis or incomplete diagnosis of the reasons are: the tumor bone and cartilage calcification confused, older patients and CT performance is extremely typical. Conclusion: CT can be used as a valuable tool for the diagnosis and diagnosis of osteosarcoma.