节细胞神经瘤的CT和MR诊断

目的:研究节细胞神经瘤的CT和MRI表现特点及其诊断价值。方法:对9例节细胞神经瘤行CT和MRI检查,9例均做CT平扫加增强,8例患者行MRI,其中4例MRI增强。所有病例均经手术病理证实。结果:6例位于腹膜后,2例位于纵隔,1例位于颈部,表现为椭圆形,所有病变边缘都非常锐利。在CT平扫上均为低至中等密度,在MRI上T1WI表现为低信号,T2WI上呈非均匀高信号;增强后表现为轻度或不均匀的中等度强化。结论:CT与MRI相结合能比较全面准确地反映节细胞神经瘤的特性,是目前诊断该病较为理想的方法。

CT and MR Imaging in the Diagnosis of Ganglioneuroma

Objective:To research the features and diagnostic value of CT and MRI of ganglioneuroma.Methods:CT and MRI examinations were performed in 9 cases,CT scanning was performed in all with both plain and enhanced scan. MRI was done in 8 cases,among which 4 cases were done with enhanced scan.All cases were confirmed by surgery and pathology.Results:6 masses were located in retroperitoneum region,2 in mediastinum and 1 in neck,which appeared elliptic with sharp edges.On CT plain scan the mass showed low or intermediate density.On MRI scan,the mass showed low signal on T_1WI,inhomogeneous hyperintensity on T_2WI and a slightly or inhomogeneously intermediate enhancement was seen on enhanced scan.Conclusion:The combination of CT and MRI can reflect features of ganglioneuroma thoroughly and precisely,and it is considered as an ideal method in diagnosing ganglioneuroma up to the present.