摘要
本文总结79例(84个瘤灶)神经鞘细胞肿瘤。其中79/84良性肿瘤(含50个神经鞘瘤、29个神经纤维瘤)。5/84恶性肿瘤。肿瘤分布如下:中枢神经系统73/84,周围神经系统11/84。各部分瘤灶有其特征性表现。神经鞘瘤有特殊的高亮信号(在T_2W像)和中等低信号(在T_1w像)。而神经纤维瘤在T_2W和T_1信号强度变化小。这在区分病理特性方面有一定价值。结合文献,对病变病理学基础,影象特征,诊断和鉴别诊断进行分析。
79 cases with 84 lesions of nerve sheath cell tumors were reported in this paper. There were 79/84 benign lesions i, e 50 Schwannomas, 29 Neurofibromas. and 5/84 Malignant ones. This location of these tumors was as follows: in central nerve system was 73/84, and in peripheral nerve system was 11/84. A Tumor mass is their typical appearance in high bright on T2W and middle low on TlW image, as well as the Neurofibroma is only a little change on TlW and T 2W image, its quite useful in pathologic differential diagnosis. Except this, the pathologic basis, imaging feature. diagnosis and differential diagnostic cases were analyzed with review of literature and the advantage and limitation of ULF—MRI were briefly discussed.
