例1,男,72岁。头外伤后呕吐1天,右面部不自主抽搐伴精神异常8小时入院。查体:神清,智能差,精神不振,有时自语,右侧头顶部皮肤略肿胀,右侧鼻唇沟浅,口角左偏,伸舌右偏,右上下肢轻瘫征阳性,颈有抵抗。头颅CT:左顶部颅骨内板下可见月芽状略低无脑回区,双侧裂池、小脑幕上池、左环 Example 1, male, 72 years old. Vomiting head trauma after 1 day, involuntary twitching of the right facial with mental disorders admitted to hospital for 8 hours. Physical examination: Shen Qing, poor intelligence, lack of energy, sometimes self-speak, the right top of the skin slightly swollen on the right nasolabial fold shallow, left corner of the mouth, stretch right tongue, right upper limb paralysis positive, neck resistance . Head CT: the left top of the skull seen in the month under the plate slightly lower non-brain back to the area, bilateral fissure pool, supratentorial cistern, left ring