患者　男 ,38岁。因全身抽搐 ,间歇性发作 2 0天入院。发作时全身剧烈抽搐 ,头偏向右侧 ,口吐白沫 ,神志不清 ,持续几分钟后自行缓解。查体无特殊 ,实验室检查正常。ＭＲ平扫Ｔ1ＷＩ(图 1)示左额叶片状低信号区 ,边界模糊不规则 ,占位效应不明显 ;Ｔ2 ＷＩ(图 2 )呈片状不规则 Male patient, 38 years old. Due to systemic convulsions, intermittent onset of admission 20 days. Severe seizures during seizures, head to the right side, foaming at the mouth, unconsciousness, sustained self-ease after a few minutes. No special physical examination, laboratory tests were normal. MR plain T1WI (Figure 1) showed the left frontal lobe low signal area, the boundaries of fuzzy irregular, placeholder effect is not obvious; T2 WI (Figure 2) was irregular sheet