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①目的探讨长管骨骨转移瘤的ＣＴ表现及诊断价值。②方法回顾性阅读经临床或病理证实的３０例长管骨骨转移瘤病人的Ｘ线平片和ＣＴ扫描片，并记录各种征象。③结果ＣＴ表现为溶骨型转移２０例，成骨型转移６例和混合型４例。溶骨型主要表现为囊状或不规则形骨质破坏，伴轻度膨胀的不完整骨壳，软组织肿块局限。④结论ＣＴ扫描在显示骨质破坏和肿瘤组织方面优于Ｘ线平片，对多数长管骨转移瘤病人可做出正确诊断。
Objective To investigate the CT findings and diagnostic value of long bone metastases. Methods Retrospective X-ray and CT scan of 30 patients with long bone metastases confirmed by clinical or pathology were retrospectively reviewed. Various signs were recorded. Results CT showed osteolytic metastasis in 20 cases, osteogenic metastasis in 6 cases and mixed type in 4 cases. The main features of osteolytic cystic or irregular shaped bone destruction, with mild swelling incomplete bone shell, soft tissue mass limitations. ④ Conclusion CT scan is superior to X-ray in displaying bone destruction and tumor tissue, and most patients with long bone metastases can make correct diagnosis.