Brain computed tomography revealed a huge chronic subdural hematoma over the left frontoparietal lobe, with an incidental finding of an arachnoid cyst over the left sylvian fissure.

• 我们给病人做的脑部电脑断层扫描却发现其左额-顶叶有一巨大的慢性硬脑膜下血肿，且意外的发现在同一侧的希氏裂出现一个蜘蛛膜囊肿。