摘要
目的探讨胸部单中心型巨淋巴结增生症18F-FDG符合线路SPECT/CT显像表现。方法回顾分析经手术病理证实的3例单中心型巨淋巴结增生症患者的影像资料,3例患者均行CT平扫、增强扫描及18 F-FDG符合线路SPECT/CT显像。结果肿块位于前纵隔1例,右中纵隔1例,左上肺门1例,类圆形1例,分叶状2例,伴有斑点状钙化2例,肿块最大径4.4~5.9cm;增强扫描明显均匀强化2例,不均匀强化1例;1例患者伴有单侧胸腔积液。肿块放射性分布不均匀2例,大致均匀1例;目测分级2级1例,3级1例,4级1例,T/Nmax值4.5~7.2。结论单中心型巨淋巴结增生症表现为明显强化的肿块,葡萄糖代谢不同程度的增高,葡糖糖代谢明显增高的病变需要与恶性病变鉴别。
Objective To investigate the 18F-FDG coincidence SPECT/CT imaging findings of unicentric Castleman＇s dis- ease. Methods We retrospectively reviewed the imagine findings of 3 patients with histopathologically proved chest uni- centric Castleman＇s disease. All the 3 patients were taken unenhanced CT scan, enhanced CT scan, and 18F-FDG coinci- dence SPECT/CT. Results The tumors were located at anterior mediastinum （n= 1）, right middle mediastinum （n= 1）, or left hilum （n=1）. The shape was oval （n=l）or lobulated （n=2）, ranging 4. 445.9 cm in diameter. Punctate calcifi- cation within the tumor was seen in 2 patient. 2 tumors showed obvious homogeneous enhancement after the administration of contrast medium, while 1 tumor showed inhomogeneous enhancement. Unilateral pleural effusion was seen in 1 patient. All 3 tumors showed increased uptake of 18F-FDG. One tumor was visual grade as 2, 3 eack and 4. T/Nmax value ranged from 4.5 to 7.2. Conclusion Unicentric Castleman＇s disease showed obvious enhancement on CT and various degrees of increaseed uptake of 18F-FDG, which should be differentiated from malignant tumors.
出处
《医学影像学杂志》
2015年第7期1174-1177,共4页
Journal of Medical Imaging
