后纵隔节细胞神经瘤的CT表现  

Posterior mediastinal ganglioneuroma:CT findings

作　　者：古杰洪[1] 杨蕊梦[1] 丁汉军[1] 郭永梅[1] 黄云海[1] 

机构地区：[1]广州市第一人民医院放射科,广东510180

出　　处：《放射学实践》2011年第11期1170-1172,共3页Radiologic Practice

摘　　要：目的:提高对后纵隔节细胞神经瘤(PMGN)的认识。方法:搜集15例经手术病理证实为PMGN患者的临床及CT资料,所有病例均行CT平扫及增强扫描,对其CT表现进行回顾性分析。结果:PMGN瘤体上下径大于前后径及左右径,且紧贴脊椎生长。单侧型11例,跨中线型4例。CT平扫表现为均匀或不均匀性低密度灶,2例内可见散在点状钙化,1例内可见片絮状脂肪密度影;增强扫描无强化9例,轻度～中度不均匀强化6例。结论:PMGN的CT表现有一定特征性。Objective：To improve the understanding of posterior mediastinal ganglioneuroma（PMGN）.Methods：Clinical and imaging materials（all cases were performed with plain and enhanced CT scan） of histologically proved PMGN in 15 cases were retrospectively analyzed,additionally,CT findings were summarized.Results：On CT images,vertical diameters of the PMGNs were bigger than both of anteroposterior and transverse diameters,and tumors grew along the vertebrae.Moreover,we classified PMGNs in our study into unilateral type（n=11） and crossing the middle-line type（n=4） according to the growth pattern.On plain CT,PMGNs appeared homogeneously or heterogeneously hypodense with scattering punctuate calcifications in two cases and patchy fat density in one case,respectively.There was no enhancement（n=9） or mild to moderate heterogeneous enhancement（n=6） on enhanced CT of the above cases.Conclusion：PMGNs have some characteristics on CT,and we could make a right imaging diagnosis after thorough analysis.

关 键 词：纵隔肿瘤 节细胞神经瘤 体层摄影术 X线计算机 

分 类 号：R734.5[医药卫生—肿瘤]