艾滋病合并脑内机遇性感染的MRI表现

MRI performance of AIDS combined with opportunistic infections of the brain

目的探讨艾滋病(AIDS)合并脑内机遇性感染的MRI特征。方法回顾性分析我院2006-2009年共23例AIDS合并颅内感染的MRI表现。结果 23例脑内感染中,弓形虫感染12例,病变主要侵犯基底节区及大脑半球灰白质交界区,"靶征"是其特征性表现;隐球菌感染5例,主要引起隐球菌性脑膜炎,脑内胶状假囊是其特点;脑结核6例,单纯侵犯脑实质少见,不同时期的脑实质内病变的MRI表现有所差异。结论 AIDS合并脑内机遇性感染的MRI表现有一定的特征性。

Objective： To investigate the MRI characteristics of AIDS combined with opportunistic infections of the brain. Materials and Methods： The MRI manifestations of AIDS with brain infection were retrospectively analyzed. Results： A total of 23 cases, 12 cases of toxoplasmosis, mainly involved the basal ganglia and the junction of gray matter and white matter of cerebral hemisphere, ＂target sign＂ was the characteristic performance; cryptococcal infection in 5 cases, mainly caused cryptococcal meningitis, brain colloidal false capsule was the characteristics; tuberculosis infection in 6 cases, with simple violations of rare brain parenchyma, in different time, the lesions involving brain parenchyma was vary. Conclusion： The MRI performance of AIDS combined with infection in the brain is characteristic.