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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,所有患者均行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、脑脊膜瘤检出率的提高有明显的优势。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, Sag axial scanning in combination with enhanced MRI. Nine patients Clinical manifestations and MRI features. Results According to the diagnostic criteria of NIH, 9 patients had bilateral acoustic neuroma, 3 with multiple meningioma, 3 with meningioma, 2 with opacification under the lens and 4 with neurofibroma. Conclusions Type II neurofibromatosis can be diverse, its typical manifestation is bilateral acoustic neuroma, with rare lesions. MRI enhanced scan of the smaller acoustic neuroma and neurofibromatosis, meningioma detection rate has obvious advantages. MRI is the best imaging diagnosis of type II neurofibromatosis.