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患者女,34岁。3年前出现左面部麻木感,20天前开始右侧上下肢无力,行走不稳,起病前及发病后无发热;1987年12月22日入院。检查:双侧视神经乳头边缘稍模糊,左面部感觉减退,左侧角膜反射消失,双耳听力正常,右侧上下肢肌力3～4级,左侧肌力正常,左侧指鼻试验及跟膝胫试验反应差。双侧内耳道照片正常,CT增强扫描示左侧小脑桥脑角有一低密度区,周边呈环状增强;CT诊断为左侧小脑桥脑角脑脓肿。 12月30日行手术,病变位于左侧小脑桥脑角,向脑干腹侧生长,表面较光滑,呈灰白色,穿刺抽出淡黄色液体40 ml,表明病变为肿瘤。切开肿瘤囊壁,壁厚约1～2mm不等,肿瘤囊内无瘤结节。在近内耳门处,肿瘤的外侧壁附着在听神经上,三叉神经被肿瘤挤压呈弓形;在手术显微镜下比较容易地分离肿瘤
Female patient, 34 years old. 3 years ago appeared left facial numbness, 20 days ago on the right upper limb weakness, unstable walking, before onset and after onset of fever; December 22, 1987 admission. Check: bilateral optic nerve head slightly blurred edge of the left sensory decline, left corneal reflex disappeared, both ears normal hearing, right upper and lower extremity muscle strength of 3 to 4, left normal muscle strength, the left finger nasal test and with Knee tibia test poor response. The bilateral internal auditory canal photographs were normal, CT enhanced scan showed a low density area of the left cerebellopontine angle, the surrounding ring was enhanced; CT diagnosis of left cerebellopontine angle brain abscess. December 30 surgery, lesions located in the left cerebellopontine angle, ventral growth to the brainstem, the surface is smooth, gray, punctuated a pale yellow liquid 40 ml, indicating that lesions of the tumor. Cut the tumor wall, wall thickness of about 1 ~ 2mm, tumor-free nodules within the capsule. Near the inner ear door, the outer wall of the tumor is attached to the auditory nerve, the trigeminal nerve is arched by the tumor and the tumor is easily isolated under a surgical microscope