Imaging features of aneurysmal bone cyst on whole-body bone imaging and SPECT/CT fusion imaging
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摘要:
目的 探究动脉瘤样骨囊肿在全身骨显像及SPECT/CT断层融合显像中的影像特征，以提高动脉瘤样骨囊肿的诊断准确率。 方法 回顾性分析2016年1月~2022年5月在我院行全身骨显像及SPECT/CT断层融合显像并且术后病理诊断为动脉瘤样骨囊肿的患者，总结其在全身骨显像及SPECT/CT断层融合显像上的影像学特征。 结果 在我院行全身骨显像及断层融合显像且术后病理诊断为动脉瘤样骨囊肿的患者共24例，原发19例，继发5例，大多为青少年，病变主要分布于四肢长骨，也见于肋骨及骨盆骨，病变部位主要呈膨胀性骨质破坏伴相应部位骨代谢增高。 结论 全身骨显像联合SPECT/CT断层融合显像可较好地显示动脉瘤样骨囊肿的影像学特征及骨代谢情况，有助于动脉瘤样骨囊肿的定性诊断。 -
关键词:
- 全身骨显像 /
- SPECT/CT断层融合显像 /
- 动脉瘤样骨囊肿 /
- 影像学特征
Abstract:Objective To explore the imaging features of aneurysmal bone cyst in whole- body bone imaging and SPECT/CT tomosynthesis imaging, so as to improve the diagnostic accuracy of aneurysmal bone cyst. Methods A retrospective analysis was performed on patients who underwent whole-body bone imaging and SPECT/CT tomosynthesis imaging, pathologically diagnosed with aneurysmal bone cyst in our hospital from January 2016 to May 2022. We summarized its imaging features in whole-body bone imaging and SPECT/CT tomosynthesis imaging. Results Twenty-four patients underwent whole-body bone imaging and SPECT/CT tomosynthesis imaging in our hospital and were pathologically diagnosed as aneurysmal bone cysts, including 19 primary cases and 5 secondary cases, and mostly teenagers. It distributed in the long bones of the extremities, but also in the ribs and pelvic bones. The lesions were mainly expansile bone destruction with different degrees of increased bone metabolism in the corresponding parts. Conclusion Whole-body bone imaging combined with SPECT/CT tomosynthesis imaging can better display the imaging features and bone metabolism of aneurysmal bone cysts, which is helpful for the qualitative diagnosis of aneurysmal bone cysts. -
图 1 动脉瘤样骨囊肿全身骨显像及SPECT/CT断层图像
A: 患者男, 26岁, 左侧肋骨疼痛, 全身骨显像示左侧第5肋显像剂摄取增高, SPECT/CT断层显像显示左侧第5肋后端局部膨胀性骨质破坏伴显像剂摄取增高, 病理结果为非骨化性纤维瘤伴动脉瘤样骨囊肿; B: 患者男, 57岁, 右侧桡骨疼痛, 全身骨显像示右侧桡骨见团状显像剂浓聚影, SPECT/CT断层显像显示右侧桡骨远端见类圆形稍低密度影, 呈膨胀性生长, 周围可见不连续骨包壳影, 相应部位伴有显像剂摄取增高，病理结果为动脉瘤样骨囊肿; C: 患者男, 48岁, 左侧股骨疼痛伴活动受限, 全身骨显像显示左侧股骨上端显像剂摄取增高, SPECT/CT断层显像显示左侧股骨大转子膨胀性骨质破坏, 边缘骨包壳完整, 骨质硬化, 伴显像剂摄取增高; D: 患者女, 57岁, 右膝关节疼痛伴活动受限, 全身骨显像显示右膝关节显像剂摄取增高, SPECT/CT断层融合显像显示右侧胫骨上端溶骨性骨质破坏伴软组织肿块形成, 显像剂摄取增高，边缘骨包壳不连续, 其内可见少许“液-液平”（箭头）, 病理结果为骨巨细胞瘤伴动脉瘤样骨囊肿.
Figure 1. Image of aneurysmal bone cyst on whole-body bone imaging and SPECT/CT fusion imaging.
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