Larsson E M, Cronqvist S, Sundbärg G, Mercke U, Harris S
Neuroradiology. 1986;28(3):199-202. doi: 10.1007/BF00548192.
The findings at CT examinations, performed on 46 patients with acoustic neurinomas about 6 months after translabyrinthine surgery, were analyzed and compared with preoperative findings. Direct as well as indirect signs of expansion had disappeared postoperatively. Bulging of cerebellar tissue towards the operative defect in the petrous bone, a finding not connected with local adhesions, was notable. Hypodensity in the vicinity of the removed tumor occurred either due to local widening of the subarachnoid space or due to changes within the cerebellar parenchyma. Local and general widening of the fourth ventricle as a sign of atrophy was a frequent finding.
对46例听神经瘤患者在经迷路手术后约6个月进行CT检查，分析其结果并与术前结果进行比较。术后扩张的直接和间接征象均消失。值得注意的是，小脑组织向岩骨手术缺损处膨出，这一表现与局部粘连无关。切除肿瘤附近的低密度影，要么是由于蛛网膜下腔局部增宽，要么是由于小脑实质内的改变。作为萎缩征象的第四脑室局部和整体增宽是常见表现。
