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目的探讨粟粒性脑结核及与其需要鉴别疾病的MRI特点。方法 2007年12月2009年10月,对11例粟粒性脑结核患者的MRI平扫及增强表现进行分析,总结其MRI特征性表现。结果病史上粟粒性脑结核多存在血行播散型肺结核,平扫表现为多发小片影,增强后表现为弥漫分布的小环状或结节状强化灶,大小趋向一致,多为2mm左右,可合并结核性脑膜炎及脑积水。结论粟粒性脑结核的MRI平扫表现不典型,增强表现有一定特征性,认识其特点可以和其它常见的颅内多发病变进行鉴别。
Objective To investigate the MRI features of miliary brain tuberculosis and its associated diseases. Methods From December 2007 to October 2009, MRI findings of 11 patients with miliary tuberculosis were analyzed and their MRI features were summarized. Results The history of miliary brain tuberculosis hematogenous disseminated pulmonary tuberculosis, the performance of multiple thin cysts, enhanced after the performance of diffuse distribution of small ring or nodular fortification, the size tends to be consistent, mostly about 2mm, can be Combined tuberculous meningitis and hydrocephalus. Conclusion Miliary tuberculosis MRI manifestations of atypical, enhanced performance has a certain characteristic, to recognize its characteristics and other common intracranial lesions can be identified.