患者男性,32岁。一个月前无明显诱因出现发热、头痛、呕吐,在当地静点青霉素、氨基苄、口服胃药、病情无好转入院。　　图1　颅内多个略高密度影。图2　增强扫描,病灶呈环状、结节状强化。病史:两年前曾患结核性胸膜炎(脓胸穿刺引流术后)已治愈。查体:一般情况良好,意识清,精神 Male patient, 32 years old. No obvious incentive a month ago fever, headache, vomiting, penicillin in the local static point, aminobenzyl, oral stomach medicine, admitted to hospital without improvement. Figure 1 Multiple intracranial high-density shadow. Figure 2 enhanced scan, the lesion was ring, nodular enhancement. History: Two years ago, tuberculosis pleurisy (empyema drainage) was cured. Physical examination: the general situation is good, consciousness, spirit