1 病例资料男,65岁。2小时前淋浴时突然晕厥,无抽搐及大小便失禁,收入内科。4年前诊断为原发性高血压、糖尿病。查体:体温不升,呼吸52/min,脉搏120/min,血压85/65mmHg。浅昏迷,左侧瞳孔直径2.5mm,对光反射灵敏,右侧为义眼。全腹膨隆,移动性浊音阳性。四肢肌张力正常,病理征未引出。行头颅CT检查未见 1 case information male, 65 years old. 2 hours ago suddenly syncope when the shower, no convulsions and incontinence, income medical. 4 years ago diagnosed as essential hypertension, diabetes. Physical examination: body temperature does not rise, breathing 52 / min, pulse 120 / min, blood pressure 85 / 65mmHg. Light coma, the left pupil diameter of 2.5mm, sensitive to light reflection, the right eye. Abdominal bulge, mobility dullness positive. Limb muscle tension is normal, pathological levy did not lead. No head CT examination