患者男,62岁,因间断性左眼视物不清20余天,加重伴左眼黑朦20 d入院。查体:神清语明,双侧瞳孔直径约3 mm,直间接对光反射灵敏,四肢肌力、肌张力正常,余神经系统查体未见明显异常。辅助检查:MRI头部普通增强影像所见:静脉注入GD-DTPA后T1WI扫描:大脑镰两旁双额叶见5.4 cm×4.2 cm×5.7 cm大小团片状占位病变,增强扫描呈不均匀强化, Male patient, aged 62, was left unidentified for more than 20 days due to the intermittent left eye sight, aggravated with darkness in the left eye for 20 days. Physical examination: Clear statement, bilateral pupil diameter of about 3 mm, direct indirect light reflex sensitivity, limb muscle strength, muscle tone normal, no significant abnormal nervous system examination. Auxiliary examination: General enhancement of the head MRI image seen: intravenous injection of GD-DTPA T1WI scan: both sides of the falx falx frontal saw 5.4 cm × 4.2 cm × 5.7 cm size foci lesions, enhanced scan showed uneven enhancement ,