肺癌骨转移68例影像分析

目的　通过总结 6 8例肺癌骨转移的影像学改变 ,了解不同影像检查方法的价值及表现。方法　收集用常规 X线、CT及 MRI检查发现的 35～ 78岁肺癌骨转移 6 8例 ,将其分为 4 9岁以下组及 5 0岁以上组 ,总结其部位及影像改变发生率。结果　 4 9岁以下组 12例 ,占 18%。 5 0岁以上组 5 6例 ,占 82 %。其中多骨转移 4 2例 ,占6 2 %。多发生在脊柱、肋骨、盆骨、胸骨。 79.4 %表现为不规则片状溶骨性骨破坏 ,常伴有软组织肿块形成。 14 .7%表现为轻度膨胀性蜂窝状骨破坏 ,4 .4 %表现为小片状、斑片状成骨性改变。 1.5 %表现为斑片状溶骨及成骨混合性改变。结论　肺癌骨转移主要分布在中轴骨 ,常多发。CT、MRI发现病变率高 ,且 MRI易发现多发隐匿性病灶。平片较难发现小病灶且用于四肢较好

Imaging analysis of bone metastasis in 68 cases of lung cancer

Objective To investigate the features and value of different kinds of imaging methods in lungcancer with bone metastasis.Methods Imaging findings of plain fimls,CT and MRI in 68 cases of lung cancer with bone metastasis were retrospectively analyzed.The patients aged from 35 to 78 years old and were divided into two groups according to their age.The lesions' location and imaging changes were summarized.Results The patients aged below 49 years were 12 cases(18%) and above 50 years were 56 cases(82%).Multiple bone metastasis were found in 42 cases(62%),single bone metastasis in 18 cases(38%).The lesions appeared irregular osteolytic bone destruction and soft tissue mass(79.4%),sightly expansive honeycomb bone destruction(14.7%),patchy osteoblastic change(4.4%)and patchy mixed osteolytic and osteoblastic change(1.5%).Conclusion Bone metastasis from lung cancer were multiple and mainly located in axis bones.The rate of finding lesions was high in CT and MRI examination,and MRI could find small lesions and MRI was used to exam extremities.