第三脑室占位性病变的MRI诊断

发布时间：2018-04-13 12:01

本文选题：脑室肿瘤 + 磁共振成像　；参考：《中国临床医学影像杂志》2017年04期

【摘要】：目的:探讨第三脑室占位性病变的MRI影像学特征。资料与方法 :回顾性分析48例第三脑室占位性病变的资料,46例经病理证实,2例转移瘤原发肿瘤明确。结果 :第三脑室内占位22例,跨第三脑室内外生长占位26例。根据肿瘤与第三脑室的角度及周围脑实质的关系可区分肿瘤位于第三脑室内或跨第三脑室内外生长。第三脑室占位性病变大多具有年龄特征,蛛网膜囊肿、室管膜囊肿、脉络丛乳头状肿瘤、颅咽管瘤、生殖细胞肿瘤及原始神经外胚层肿瘤好发于儿童及青少年。不同类型第三脑室占位性病变的MRI表现有所不同,部分具有特征性表现。结论:MRI能较好地区分第三脑室内或跨第三脑室内外生长占位,综合发病年龄特征、MRI特点可提高诊断准确性。
[Abstract]:Objective: to investigate the MRI imaging features of the third ventricle occupying lesions.Materials and methods: the data of 48 cases of third ventricular space occupying lesions were retrospectively analyzed. 46 cases of metastatic tumors were confirmed by pathology in 2 cases.Results: the third ventricle occupied 22 cases, and the growth occupied 26 cases across the third ventricle.According to the relationship between the tumor and the angle of the third ventricle and the surrounding brain parenchyma, the tumor can be distinguished between the third ventricle and the outside of the third ventricle.The third ventricle occupying lesions have the characteristics of age, arachnoid cyst, ependymal cyst, choroid plexus papillary tumor, craniopharyngioma, germ cell tumor and primitive neuroectodermal tumor.The MRI findings of different types of third ventricular space occupying lesions are different, and some of them are characteristic.Conclusion the weight MRI can distinguish the growth space between the third ventricle and the outside of the third ventricle, and the diagnostic accuracy can be improved by combining the characteristics of age with MRI.
【作者单位】：南方医科大学珠江医院放射科;南方医科大学南方医院PET中心;
【分类号】：R445.2;R739.41

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