椎管内外节细胞神经瘤的MRI表现

MRI manifestations of intraspinal ganglioneuroma

目的:探讨椎管内外节细胞神经瘤的MRI表现特点,提高本病术前影像诊断水平。方法:回顾性分析本院经手术及病理证实的13例椎管内外节细胞神经瘤临床、MRI影像及手术病理资料,所有患者均经MRI平扫及增强扫描。结果:13例椎管内外节细胞神经瘤均为单发,共13个病灶。位于椎管颈段5例,胸段1例,腰或腰骶段7例。13个病灶以实性为主,边缘清楚。5例呈类圆形,8例跨椎间孔生长,呈哑铃形。病灶大小从0.8 cm×0.8 cm到7.4 cm×3.5 cm。病灶MRI平扫T_1WI呈等或稍低信号,T_2WI呈高信号,5例信号均匀,8例信号不均,3例病灶内可见大小不一囊变区。增强扫描11例病灶见强化,2例病灶强化不明显。结论:椎管内外节细胞神经瘤MRI表现有一定特征性,掌握本病MRI特征,对提高本病的影像诊断水平有重要意义。

Objective： To investigate the MRI manifestations of intraspinal ganglioneuroma and improve the imaging diag- nostic level. Methods： A retrospective analysis of our hospital confirmed by surgery and pathology in 13 cases of intraspinal ganglioneuroma, clinical MRI imaging and pathological results, all patients underwent MRI scan and enhanced scan. Results： Thirteen cases of intraspinal ganglioneuroma were solitary. There were 5 cases in cervical spinal canal, 1 case in thoracic spinal canal, 7 cases in lumbar or lumbosacral spinal canal. The 13 lesions were solid and the margin was clear. Five cases were round, and 8 cases of intervertebral foramen growth, was dumbbell shaped. Lesion size ranged from 0.8 cm×0.8 cm to 7.4 cm ×3.5 cm. Lesion signal was equal or slightly lower signal on T1WI, and showed high signal on T2WI, 5 cases of signal unifor- mity, 8 cases of uneven signal, 3 cases of lesions can be seen within the size of different cystic area. Enhanced scan of 11 lesions see enhanced, 2 cases of lesions were not obvious. Conclusion： Kowning MR! characteristic manifestation of intraspinal ganglioneuroma has important significance, and improving the imaging diagnostic level of this disease.