| 刘昕,汪世存,倪明,张依凡,潘博,展凤麟.髓外浆细胞瘤CT、MRI及18F-FDG PET/CT表现[J].中国医学影像技术,2019,35(12):1870~1874 |
| 髓外浆细胞瘤CT、MRI及18F-FDG PET/CT表现 |
| CT, MRI and18F-FDG PET/CT features of extarmedullary plasmacytoma |
| 投稿时间：2019-07-23 修订日期：2019-09-06 |
| DOI：10.13929/j.1003-3289.201907159 |
| 中文关键词: 浆细胞瘤 体层摄影术,X线计算机 磁共振成像 正电子发射断层显像术 氟脱氧葡萄糖F18 |
| 英文关键词:plasmacytoma tomography, X-ray computed magnetic resonance imaging positron-emission tomography fluorodeoxyglucose F18 |
| 基金项目:中科院B类先导培育项目（XDPB10）。 |
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| 中文摘要: |
| 目的 探讨髓外浆细胞瘤（EMP）CT、MRI及18F-FDG PET/CT表现。方法 回顾性分析14例经病理证实的EMP的CT、MRI及18F-FDG PET/CT资料，观察病灶特征。结果 4例接受CT检查，病灶均以等密度为主，1例邻近骨质破坏，但无明显骨质硬化改变。7例接受MR检查，病灶信号均匀，T1WI呈等或稍低信号，T2WI以等或稍高信号为主，其中2例病灶内或周边可见流空血管影。增强扫描病灶呈均匀或不均匀中-重度强化，部分病灶边缘可见细小血管影，5例增强MRI病灶内可见强化更为显著的间隔。9例接受18F-FDG PET-CT扫描，7例表现为等密度软组织肿块或结节影，2例仅表现为局部软组织增厚伴结节状，均伴团块状中-重度放射性摄取增高，SUV最大值8.43±3.33。结论 CT、MRI及18F-FDG PET/CT在诊断EMP、鉴别诊断、指导临床治疗方案和预后评估等方面存在一定价值。 |
| 英文摘要: |
| Objective To investigate CT, MRI and 18F-FDG PET/CT manifestations of extarmedullary plasmacytoma (EMP). Methods CT, MRI and 18F-FDG PET/CT data of 14 EMP patients confirmed by pathology were analyzed retrospectively, and the imaging characteristics of EMP were explored. Results Among 4 patients who received CT, the lesions were mainly isodensity, 1 case showed adjacent bone destruction but no significant change of osteosclerosis in the damaged site. In 7 patients who received MRI, the signals of lesions were uniform, dominated by equal or slightly lower T1 signals and equal or slightly higher T2 signals. Flowing avoid effect could be seen in or around the lesions in 2 cases. Uniform or non-uniform moderate to severe enhancement were observed both in CT and MRI, while small vascular shadows could be seen at the edge of some lesions, and significant enhancement intervals could be seen in the lesions in 5 cases. In 9 patients underwent 18F-FDG PET-CT scanning, soft tissue masses or equal density nodular shadows were observed in 7 cases, while only local soft tissue thickening with nodular shape were noticed in 2 cases, all were accompanied by massive moderate-significant increase in radioactive uptake, and the maximum value of SUV was 8.43±3.33. Conclusion CT, MRI and 18F-FDG PET/CT have some value in diagnosis and differential diagnosis, also for guiding clinical treatment options and prognosis evaluation of EMP. |
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