节细胞神经瘤的CT影像分析  

CT imaging analysis of ganglioneuroma

作　　者：冯志鹏[1] 李怀波[1] 王勇[1] 梁昆如[1] 

机构地区：[1]厦门大学附属中山医院影像科,福建厦门361004

出　　处：《医学影像学杂志》2013年第3期363-366,共4页Journal of Medical Imaging

摘　　要：目的分析节细胞神经瘤的CT影像表现,提高其诊断准确率。方法回顾性分析12例经手术病理证实的节细胞神经瘤的CT表现。结果 8例位于腹膜后,3例位于后纵隔内,1例位于颈根、上纵膈内。所有肿块均边界清楚,呈圆形、椭圆形或分叶状,其中5例呈铸型生长,1例侵犯椎间孔;3例可见小斑点钙化;CT平扫呈均匀性或稍不均匀性低密度,CT增强扫描2例未见明显强化,1例动脉期包膜轻度强化,未见明显延迟强化,2例出现间隔轻度延迟强化,5例可见进行性延迟强化;4例行三维重建,对病变的定位、病变与周围组织结构的关系显示清晰。结论节细胞神经瘤具有一定的CT影像表现特点,三维重建对于手术具有指导意义。Objective To analyze the CT findings of ganglioneuroma so as to improve its diagnostic accuracy. Methods Imaging findings of 12 cases of pathologically proven ganglioneuroma were analyzed retrospectively. Results Eight cases localized in retroperitoneal space, 3 cases in posterior mediastinum, 1 case from root of neck to superior mediastinum. All masses had well-defined margins, They were round, oval or lobulated in shape, 5 cases were shown a tendency of extended into the space between adjacent organs and structure, Intervertebral foramen was involved in 1 case, Punctate calcification was seen in 3 cases; All cases were shown homogeneous or slightly heterogeneous low density on unenhanced CT, On enhanced CT, 2 cases showed no enhancement, 1 case showed slightly capsule enhancement in arterial phase and without de- layed enhancement, 2 cases showed slightly intratumoral septa delayed enhancement, 5 cases showed progressive delayed enhancement. 3D CT was performed in 4 cases which clearly reveal the location of the tumor and the relationship between the tumor and the neighboring structures. Conclusion Ganglioneuroma has some imaging features on CT, 3D CT image was helpful to surgery.

关 键 词：节细胞神经瘤 体层摄影术 X线计算机 

分 类 号：R739.4[医药卫生—肿瘤] R814.42[医药卫生—临床医学]