A patient in their early 20s with no medical history or previous symptoms presented for severe frontal headaches and progressive blurred vision in the left eye more than the right eye for several weeks.

No localizing signs were documented on neurologic examination. Magnetic resonance imaging (MRI) of the brain with and without contrast, magnetic resonance angiography of the head, and magnetic resonance venography of the head were obtained and were unremarkable. The result of a lumbar puncture showed 101 white blood cells per high-power field (75% lymphocytes). Results of syphilis serologic tests were negative. The patient was discharged with suspected viral meningitis.

一名 20 岁出头且没有病史或既往症状的患者出现严重的前额头痛和左眼进行性视力模糊数周多于右眼。

神经系统检查未发现定位体征。获得了有和没有对比的大脑磁共振成像 (MRI)、头部的磁共振血管造影和头部的磁共振静脉造影，并且没有异常。腰椎穿刺的结果显示每个高倍视野有 101 个白细胞（75% 淋巴细胞）。梅毒血清学检测结果为阴性。患者因疑似病毒性脑膜炎出院。