文档介绍：侧脑室中枢神经细胞瘤的影像表现及鉴别诊断
作者:胡茂清龙晚生张朝桐罗学毛龙昉
【摘要】目的 C)的CT和MRI表现及其鉴别诊断。方法 C的CT和MRI表现,3例行CT检查,5例行MR检查。结果 C均位于侧脑室前中部,左侧2例,右侧3例,肿瘤边界清楚,与透明隔紧密相连,4例累及Monro孔,其中1例突向第三脑室。与脑灰质相比,CT上肿块呈稍高密度,T1WI呈等或稍低信号,T2WI呈不均匀高信号。2例可见钙化,4例可见囊变,5例见流空血管,1例伴有出血,1例胼胝体破坏。增强后5例肿瘤均明显不均匀强化。结论对于青年患者发生于侧脑室前中部紧邻透明隔或Monro孔的肿瘤,C的可能。
【关键词】中枢神经细胞瘤断层摄影术 X线计算机磁共振成像
[Abstract] Objective To explore the CT and MRI manifestations of lateral ventricle central neurocytoma and its differential diagnosis. Methods CT and MRI findings in 5 patients with lateral ventricle central firmed by pathology were retrospectively analyzed. 3 patients were examined by CT and 5 patients were examined by MR. Results All tumors were located in the anterior-middle portion of the lateral ventricles which close attached to the septum pellucidum with clear margin, 4 masses with the Monro foramen involvement and 1 extended to the third ventricle. Compared with gray matter, the tumours appeared slightly high density on CT and isointense or slightly hypointense signals on T1-weighted MR images, inhomogeneous hyperintense signals on T2-weighted images. After injection of Iohexol and GD-DTPA, all masses enhanced markedly. Other signs in the masses including calcification(n=2), cystic degeneration(n=4), flowed small vessels(n=5), hemorrhage(n=1) and callose destroyed(n=1). Conclusion The central neurocytoma should be considered when a tumour was locate