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目的:分析并探讨Ⅱ型神经纤维瘤病的MRI表现。方法:回顾性分析9例神经纤维瘤病患者的临床表现及MRI资料,所有病例均行MRI T1WI、T2WI、FLAIR序列行Ax、Cor、Sag三个轴向扫描,并行增强扫描,综合9例患者的临床表现和MRI特点。结果:根据NIH的诊断标准,9例患者均患双侧听神经瘤,3例合并多发脑膜瘤,3例合并脊膜瘤,2例患者合并晶状体后包膜下浑浊,4例合并神经纤维瘤。结论:Ⅱ型神经纤维瘤病可表现多样,其典型表现为双侧听神经瘤,皮损少见。MRI增强扫描对较小听神经瘤及神经纤维瘤、脑脊膜瘤的检出率提高有明显的还优势。MRI是目前Ⅱ型神经纤维瘤病的最佳影像学诊断方法。
Objective: To analyze and discuss the MRI findings of type Ⅱ neurofibromatosis. Methods: The clinical manifestations and MRI data of 9 patients with neurofibromatosis were retrospectively analyzed. All patients underwent MRI, T1WI, T2WI and FLAIR sequences to perform Axial, Cor, and Sag axial scans. In all cases, 9 patients The clinical manifestations and MRI features. Results: According to the diagnostic criteria of NIH, 9 patients had bilateral acoustic neuroma, 3 with multiple meningiomas, 3 with meningiomas, 2 with opacification under the lens and 4 with neurofibroma. Conclusion: Type Ⅱ neurofibromatosis can be diverse, its typical manifestations of bilateral acoustic neuroma, rare lesions. MRI enhanced scan for smaller acoustic neuroma and neurofibromatosis, meningioma detection rate increased significantly there is an advantage. MRI is the best imaging diagnosis of type II neurofibromatosis.