脊髓畸胎瘤的影像诊断

目的　探讨脊髓畸胎瘤的影像诊断。方法　分析 10例脊髓畸胎瘤的临床和影像表现。髓内 8例 ,髓外 2例。全部病例均作MR扫描。结果　 5例腰段 ,3例胸段 ,1例胸腰段 ,1例颈段。 7例多囊腔 ,3例单囊腔。MR显示肿瘤呈混杂信号 ,T1WI脂肪抑制增强扫描后病灶内脂肪信号消失 ,肿瘤部分不均匀强化。 3例腰段脊髓畸胎瘤伴有脊髓低位。结论　脊髓畸胎瘤MR表现具有特征性 ,MR的T1WI脂肪抑制增强扫描是正确诊断脊髓畸胎瘤最有效的方法

Imaging Diagnosis of Spinal Teratomas

Objective To study the imaging characters of spinal teratomas.Methods 10 cases of spinal teratomas were analyzed with clinical and radiography. 8 cases intramedullary, 2 cases extramedullary. 10 cases had MR examination. Results The location of spinal teratomas in 5 cases was in lumbar, 3 cases in thorax, 1 case in thoracolumbar, 1 case in cervical. 7 cases were multicyst type, 3 cases were singlecyst type. 10 cases of MR image showed mix signal intensity. The contrast enhancement T 1WI with fat saturation presented disappear fat signal of spinal teratomas. The teratomas heterogeneous enhancement was found in 10 cases with MR examination. 3 cases lumbosacral area of spinal teratomas united tethercord. Conclusion Neuroradiological features of spinal teratomas has specific manifestation. The T 1WI fat saturation scan is a availability nicety method for spinal teratomas.