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目的探讨艾滋病病毒中枢神经系统感染的影像学特征及诊断。方法对14例确认艾滋病合并中枢神经系统感染患者的CT影像进行分析。结果艾滋病脑炎10例,均无占位效应。脑萎缩现象5例,其中2例单独存在,3例与病灶并存。平扫病变呈片状低密度,以脑白质受累为主;6例累及双侧多个脑叶,分布不对称;2例位于左脑。其中2例增强无强化。巨细胞病毒感染1例,平扫两枕叶见片状低密度,对称分布。弓形体脑病3例,2例见等密度灶并周围水肿,1例显示脑脓肿征象。结论根据CT影像特征,结合流行病学询问,可提出本病疑似诊断。
Objective To investigate the imaging features and diagnosis of central nervous system infection of HIV. Methods Fourteen confirmed CT images of AIDS-infected patients with central nervous system infection were analyzed. Results 10 cases of AIDS encephalitis, no placeholder effect. Brain atrophy in 5 cases, of which 2 cases exist alone, 3 cases co-exist with the lesion. Plain lesions were flaky low density, mainly white matter involvement; 6 cases involving multiple bilateral lobes, asymmetric distribution; 2 cases located in the left brain. Two cases of enhancement without enhancement. Cytomegalovirus infection in 1 case, plain two occipital lobe see sheet low density, symmetrical distribution. Toxoplasma encephalopathy in 3 cases, 2 cases see the same density lesions and around the edema, 1 case of brain abscess signs. Conclusion According to CT image features, combined with epidemiological queries, the disease may be suspected of diagnosis.