摘要
目的探讨胸部节细胞神经瘤(GN)的CT、MRI影像学特征。方法回顾性分析17例经手术病理证实的胸部GN的临床及影像学资料。所有患者在手术前均行CT和/或MRI扫描,分析病变的位置、形态、大小、密度/信号,边界、病变内部情况、强化方式等影像学表现。结果17例病变中,15例位于后纵隔脊柱旁,2例位于肺尖近顶胸膜处。10例形态规则,7例"伪足样"生长,15例肿瘤长径平行于人体长轴。CT平扫多为均匀软组织密度,4例伴钙化,2例伴脂肪密度,增强扫描无或不均匀轻度强化。T1WI呈等或稍低信号,T2WI不均匀稍高/高信号,8例内见条索状低信号,增强扫描动脉期无或轻度强化,延迟期渐进性轻至中度强化。结论胸部GN的主要影像学表现为边界清楚、形态规则或"伪足样"生长的软组织肿物,CT密度均匀,T2WI不均匀高信号,增强扫描动脉期无或轻度强化,延迟期渐进性强化。
Objective To explore the imaging features of CT and MRI of thoracic ganglioneuroma.Methods The clinical and imaging data of 17 cases of thoracic ganglioneuroma confirmed by surgery and pathology were retrospectively analyzed.All patients underwent CT and/or MRI scans before surgery to analyze the location,shape,size,density/signal of the lesion,boundary,internal features of the lesion,and enhancement mode.Results Of the 17 cases of lesions,15 cases were located adjacentto the posterior mediastinal paraspinal region,and 2 cases were located at the lung apex near the parietal pleura.10 cases had regular morphology,7 cases had pseudopod-like growth,and 15 cases had tumor length parallel to the long axis of the human body.The plain CT scan had mostly uniform soft tissue density,4 cases were accompanied by calcification,and 2 cases were accompanied by fat density.The enhanced scan showed no or uneven light enhancement.MRI T1WI showed equal or slightly low signal,T2WI was uneven and slightly high/high signal,in 8 cases there was a cord-like low signal,there was no or mild enhancement in the arterial phase of the enhanced scan,and progressive mild to moderate enhancement in the delayed phase.Conclusion The main imaging manifestations of thoracic ganglioneuroma are soft tissue masses with clear borders,regular morphology or pseudopod-like growth,uniform CT density,uneven T2WI high signal,no or mild enhancement in the arterial phase of enhanced scanning,and progressive delayed phase enhancement.
作者
朱巧
任翠
李美娇
王晓华
ZHU Qiao;REN Cui;LI Meijiao(Department of Radiology,Peking University Third Hospital,Beijing 100191,P.R.China)
出处
《临床放射学杂志》
北大核心
2021年第2期243-247,共5页
Journal of Clinical Radiology
关键词
节细胞神经瘤
后纵隔
体层摄影术
X线计算机
磁共振成像
Ganglioneuroma
Posterior mediastinal
Tomography,X-ray computed
Magnetic resonance imaging
